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A quick overview of Quartz

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What is Quartz Quartz This chemical compound is composed of two parts oxygen and one part silicon. This is silicon dioxide. The most abundant mineral on Earth’s surface is silicon dioxide (SiO2). Its unique properties make it a very useful natural substance.
Where Can You Find Quartz?
Quartz is the most prevalent and widely distributed mineral on Earth. The mineral is abundant and present in every part of the globe. It forms at any temperature. It is abundant in sedimentary, metamorphic and igneous rocks. It is highly resistant both to mechanical and chemical weathering. It is durable, making it the dominant mineral in mountaintops as well as the primary component of beach sand, river sand, and desertsand. Quartz is plentiful, widespread, and durable. Around the globe, deposits of quartz can be found.
What is the Use of Quartz?
Quartz is a natural material that has many uses. The usefulness of this material can be attributed to its chemical and physical properties. It has a Mohs Scale Hardness of 7, which makes it extremely durable. Contact with most substances is chemically harmless. Its electrical properties and heat-resistance make it valuable as a component in electronic products. It is useful for making glass and as a gem because of its color, luster and diaphaneity.
Quartz is used in the production of glass.
Sometimes, geological processes deposit sands made up of almost 100 percent quartz grains. These deposits are used as a source of silica sand with high purity. These sands have been used in glassmaking. Quartz sands are used to make container glass and flat plate glass. They also produce specialty glass and fiberglass.
Quartz Abrasive
The hardness of the material is high quartz It’s harder than other natural materials. This makes it an excellent abrasive. Quartz sands or finely ground silica are used as sandblasting media, cleaning agents, grinding medium, and grit to sand and saw.
Quartz Sand as Foundry Sand
Quartz is highly resistant to chemicals as well as heat. It is used for foundry sand. The melting temperature of quartz sand is higher than that of most metals. This makes it suitable for cores and molds in common foundry operations. Due to their high heat resistance, refractory blocks are frequently made from quartz sand. Quartz sand also acts as a flux when smelting metals.
Uses of Quartz Sand
The filler quartz sand used in rubber, paint and putty. Quartz grains that have been washed are used in roofing granules, as well as for filter media. Quartz sands provide traction for the mining and railroad industries. The sands can also be used on beaches, golf courses, baseball fields and volleyball courts.
Quartz Crystals: Uses and Benefits
The ability of quartz crystals to vibrate precisely at a specific frequency is one of the most fascinating properties. These frequencies are so precise, quartz crystals can also be used for making extremely precise time-keeping equipment and equipment which can transmit radio or television signals at precise and stable frequency.
These crystals have also found a variety of other uses. They are used for specialized filters, lenses, and windows used in lasers. Beach sand, a material that was once used to make sand castles, is now being used in the production of some of the most advanced electronic devices.
Need for Synthetic quartz crystals
The demand for high-quality Quartz Crystals increased so quickly in the 1900s that mining operations were unable supply them in sufficient quantities. Fortunately, during World War II the military and industry started working on methods of growing synthetic quartz crystals in order to meet special requirements for optical and electronic uses.
The majority of quartz crystals for optical and electronic instruments are now grown in laboratories, rather than being extracted from mines. Hydrothermal processes are used in most laboratories to grow crystals. The crystals that are synthesized are grown in superheated, silica-rich waters at high temperature. These crystals can grow in any size, color, or shape to suit the manufacturing process.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing super-high-quality chemicals and nanomaterials. Our quartz has high purity as well as fine particle size. Contact us in case of need.

What are the applications of aluminum nitride ceramic materials?

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Aluminum nitride This material is considered the ideal packaging material for new generations of semiconductor substrates, electronic devices and other highly integrated products. Aluminum nitride is also used in crucibles to melt non-ferrous materials and semiconductor materials, such as gallium arenide. They can also be used for high-temperature parts and insulation, or as thermocouple protection tubes. This inorganic material has a broad range of applications. The substrate material is aluminum nitride
Substrate materials used for electronic packaging must have high electrical resistance, good thermal conductivity and a low dielectric constant. The substrate for packaging should also be able to match silicon wafers thermally, have a high flatness surface, be easy to mold, have easy metallization and processing, as well as low cost. Due to their high thermal conductivity, good high-frequency properties, good insulation properties and stable chemical properties of ceramics, they have become the most widely used substrate materials. Commonly used ceramic substrate materials include beryllium oxide, aluminum oxide, aluminum nitride, etc. Aluminum oxide ceramic substrates have a low thermal conductivity, and their thermal expansion coefficient is not comparable to that of silica. Beryllium dioxide has excellent properties but its powder can cause pronounced effects. Poison, aluminum nitride, ceramics with high thermal conductivity. They also have excellent thermal shock resistance and good mechanical properties, making them the ideal substrate.
Transparent ceramic materials
Transparency of ceramics refers to electromagnetic waves passing through the material within a particular electromagnetic frequency range. If electromagnetic waves within the infrared range can penetrate a sheet of ceramic, then the sheet is infrared-transparent ceramic. Pure aluminum-nitride ceramics, which are transparent and colorless crystals with good optical properties, can be used for heat-resistant coatings on high-temperature optical windows and fairings. Therefore, aluminum nitride The military uses ceramics in a variety of ways.

Applications of Aluminum Nitride in Machinery Industry
Aluminum nitride can be used to make wear-resistant components. Due to its high price, aluminum nitride can only replace severely worn parts. The oxidation and wear resistance of some metal or nonmetal surfaces can be improved by coating them with aluminum nitride. Aluminum nitride coatings can be used for anti-corrosion purposes, including the linings in containers and processing equipment that are corrosive.
Aluminum nitride high-temperature structure material
Aluminum nitride exhibits good corrosion resistance in ceramics both at high and low temperatures. Only at 2450degC will it decompose. As a high-temperature material, it can be used in crucibles and molds. Aluminum nitride can resist dissolution and is not affected by copper, aluminium, silver or other substances. It is also resistant to high temperatures. It can be used as a container, high-temperature protection layer and thermocouple protector tubes. For high-end semiconductor equipment like aluminum nitride electrostatic chucks, corrosive gases are used. Aluminum nitride, which is stable for molten sodium salts like gallium arsenide can be used instead of glass in order to synthesize high-purity semiconductors.
Aluminum Nitride Composite
Epoxy/aluminum Nitride Composite Material: As packaging material, this material needs to be able to dissipate heat and have good thermal properties. This requirement is getting more and more stringent. The epoxy resin has good mechanical and chemical stability. It is also easy to cure. However, it has a low thermal conductivity. Nano aluminum nitride, a powder with high thermal conductivity, can be added to epoxy resin in order to improve its thermal conductivity.
Titanium Nitride is used to create N/AlN composite materials. Titanium Nitride has excellent properties including high melting temperature, high hardness and electrical and thermal conductivity on the same scale as metal. It also exhibits corrosion resistance. A small amount titanium nitride added to the aluminum nitride matrix. According to conductive-percolation theory, when the amount of doping reaches certain thresholds, a path of conductivity is formed in crystal. This allows the volume resistance of aluminum nitride to be reduced by 24 orders of magnitude. Moreover, composite ceramic materials made from these two materials are characterized by high hardness, wear resistance and can also serve as high-grade materials for abrasives.

(aka. Technology Co. Ltd. has over 12 years experience as a supplier of high-quality chemical materials and nanomaterials. The Aluminum Nitride Please note that the products produced by our company are of high purity and have low impurity content. Please. Contact Us if necessary.

Study on Semiconductor Material Bismuth Telluride

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What property does Bismuth Telluride have?

Bismuth-telluride, a powdery gray substance with the molecular formula Bi2Te3, has a colorless or grayish appearance. Bismuth telluride, a semiconductor, has a good electrical conductivity but mediocre thermal conductivity. It is not fatal to consume large amounts of bismuth, but it can cause serious harm if consumed. The material is able to allow electrons on its surface to move at room temperatures without consuming energy, and this will improve the working speed of computer chips.

What is the preparation method of Bismuth Teluride?

Bismuth Telluride Powder Materials can be made into many commonly used devices. There are several common preparation methods: plasma activated sintering, hot pressing, Bridgman and zone melting.

1. Zone melting: This is a method for growing single crystals through melting and crystallization polycrystalline ingots. The rod-shaped ingot of polycrystalline material is melted only in a small area. The rest is kept solid.

2. Bridgman method is a method of crystal growth that is commonly used. It’s also called crucible descending. This method involves putting the crystal-growing material in a crucible that is a cylinder and passing it slowly through a high frequency furnace or resistance oven with a gradient of temperature. The temperature of a furnace should be slightly greater than the melting points of crystal materials. When the crucible contains the crystal material, it melts. If the crucible continues slowly to fall, after passing the center of heating of furnace, first the temperature begins to drop at the bottom. This method works best with common ionic materials, like halides of metals such as alkali and earth metals.

3. Czochralski method (also called Chukraski technique): Chukraski, in 1917, invented this method to produce high-quality single crystalline from the melt. This method is to place crystal material in the melting crucible. Use the pull rod after the crystal melts and heats the crucible.

Tech Co., Ltd. is a professional Bismuth telluride We have over 12 year experience in research and development of chemical products. You can contact us for high-quality Bismuth Telluride. Contact us Send an inquiry.

Are there any prohibited items that should be paid special attention to when sending international express?

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Prohibited goods include 1. These include explosives, flammables, toxics, acids-bases and radioactive items such as firecrackers, gasolines, alcohols, kerosenes, tung oils, lacquers, matches, pesticides and more. The “Practical Handbook of Dangerous Chemistries” published by Industry Press lists all the dangerous chemicals in the Chemical Products section.
2. Narcotics such as opium (morphine), cocaine (Kogan), and other psychotropic substances. Items that are prohibited from being circulated or delivered by national laws such as guns, foreign or domestic currencies, etc. ;
3. All types of live animals and perishable items (fresh fish, fresh meat etc.) ).
4. Items that harm public health include bones (including incinerated ones), animal skins which have not yet been nitrated as well as animal bones made without medicine.
5. Reactionary publications, books or windows, or materials that are obscene, etc.
6. If the Chemical Product If the item you’re sending isn’t listed in “Practical Handbook of Dangerous Chemistries”, you will need to provide an identification document issued by the first level chemical product identification department on the local market. This certificate confirms that the products are not hazardous. The relevant appraisal department is responsible for the results. Tongrun supplies you with nanopowder material. Consultations are available at any time if you have questions about which powders you can mail. In addition, the company operates an import and export business for nanomaterials. Click here to access the following information: brad@ihpa.net

These are the specific classifications
(1) Valueds: gold bricks, coins, silver bars and platinum.
(2) Checks, debit cards, credit cards and blank tickets.
(3) Antiques & handicrafts : Ming Dynasty ceramics and exquisite glass items.
(4) Medical specimens: diagnostic samples (blood samples, urine samples and human tissues).
(5) A variety of dangerous goods, including those that are inflammable or explosive, corrosive and toxic, strong acids-bases, or radioactive. Such as matches (and detonators), gunpowder and firecrackers; gasoline, kerosene and alcohol (liquids and solids); sulfuric, hydrochloric and nitric acids; organic solvents or pesticides.
All forms of narcotics, psychotropic substances and potent poisons. As arsenic or opium.
(7) Articles that are prohibited from shipping or circulation by national laws. Such as cultural relics and weapons.
Newspapers, books and pictures that are obscene, reactionary or offensive. Audio-visual products such as laserdiscs, computer disks, compact discs, DVDs, VCDs.
(9) Obstructing public. Such as animal skins, including burned animal skins, and animal bones, which have not yet been medicated.
Animals, plants, and their specimens.
(10) Unrecognizable white powder
(12) Liquids: seafood, alcoholic beverages (beer, liquor, etc. ), liquids, etc.
(13) Fragile products: glass products
Pornography, gambling and drugs are also prohibited. Guns, knives etc. All of the above is not permitted. Some of these products can be mailed through couriers to foreign countries, provided they are not illegal.

Where can you buy high-quality Nano-powder Materials?
(aka. Technology Co. Ltd., a global chemical supplier & manufacturer that has over 12 years experience in the production of super-high-quality chemicals & Nanomaterials. Currently, we have developed a successful series of powdered materials. Our OEM service is also available. If you’re looking for Nano Silver powder , Contact us. Please contact us. Needed products Send us a request.

The Property And Application of Aluminum Nitride

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Aluminum nitride Aluminum nitride is a powder that is either white or offwhite.

What property does aluminum nitride have?

AlN has a stabilizing range of up to 2200. The strength at room temperatures is very high and increases and decreases gradually with temperature. Aluminum nitride, with its low thermal expansion and good thermal conductivity, is an excellent material for thermal shock. It has a high resistance to molten-metal corrosion, making it an ideal material for casting pure aluminum, iron or aluminum alloy.
Aluminum nitride also has excellent dielectric properties. It is also promising for use as an electrical component. The aluminum nitride layer on the gallium arsenide surface can protect it against ion implantation during annealing. Aluminum nitride also acts as a catalyst for the transformation of hexagonal boron to cubic boron.

What are the applications of aluminum nitride?

Aluminum nitride has many uses in optoelectronics. It is used as a dielectric in optical storage interfaces and electronic substrates, as a chip carrier that has high thermal conductivity for military purposes, and also as a chip carrier.

A surface acoustic detector also uses epitaxial stretching due to the piezoelectric effects of aluminum. The detector sits on a silicon chip, but there are only a handful of places that can produce these thin films reliably.

Aluminium nitride is a ceramic material with a low expansion coefficient and high thermal conductivity. It can be used as a heat exchanger for high-temperature structural parts. It can also be used to make heat exchangers for high-temperature structural components.

Aluminum nitride can resist the corrosion of metals, alloys, and iron, such as aluminum and iron. It can also be used to melt metals, such as Al. Cu. Ag. Pb.

Tech Co., Ltd. is a professional aluminum nitride Over 12 years in research and development of chemical products. You can contact us for high-quality aluminum nitride. Contact us Send an inquiry.

Metal That Melts at 90 Degrees Fahrenheit

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Metal is known for its strength and durability, but it can also be melted and molded into a variety of shapes. Many blacksmiths, bladesmiths, jewelers and other craftsmen work with a wide range of precious and non-precious metals, and they must be familiar with the melting points of these materials in order to use them properly in their projects and in their forges.

A material’s melting point is determined by the bond strength between its atoms. At a certain temperature, most of the bonds break and the metal becomes liquid. This temperature is called the melting point, and it varies depending on a number of factors, including the crystal structure and atomic weight of the metal.

The lowest melting metals are primarily alloys of two base elements, such as lead and tin. These alloys have a specific point at which the components of the alloy are at their lowest melting temperatures, which is called the eutectic point. The eutectic point is not the same as the melting point for each individual component of the alloy, but rather it is the temperature at which the metal forms its most stable structure.

In addition to having a low melting point, these metals also have other useful properties due to their low boiling and freezing points. These metals can be used as thermometers, for example, since they are much less toxic than mercury. They can also be used in solders and fusible alloys because they have a good wetting ability, which makes them easier to join together than other metals.

The Advantages of a Thorium Ring

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When it comes to men’s wedding bands, there are a lot of options. Whether you want to keep it classic with gold or platinum, go with an industrial metal like titanium or carbon fiber or a more modern look like a thorium ring, there’s something out there for everyone.

This metal, which is more gray in color than platinum and darker than tungsten, has an attractive luster that is complemented by many different textures, finishes and embellishments that can be added to the rings. It’s also a very durable metal that stands up well to daily wear and resists scratches, dents and breakage. Plus, it won’t tarnish or expand when exposed to heat or water and can be easily resized by a jeweler in an emergency.

Because it’s an inert metal that doesn’t react with other metals, tantalum rings are one of the most acid-resistant wedding ring materials and also don’t conduct heat. They’re also hypoallergenic and bio-compatible, so they won’t exacerbate any skin conditions you might have.

Another plus is that unlike some alternative metals, like tungsten, which are known as conflict diamonds because they’re mined in war zones where people die for the minerals, tantalum isn’t mined in any areas that cause conflict or armed struggle and therefore is a good choice for those with sensitivity issues. However, like any other ring material, tantalum isn’t perfect and you should carefully weigh the pros and cons before making a final decision.

What is the role and mechanism of water

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We often see concrete used on construction sites and in home improvement. However, you may not know that adding a water-reducing agent to concrete is a very important step. So, why do we need to add a water-reducing agent to concrete, and what is the function and mechanism of this additive? Next, we will reveal the answers for you.

First of all, let us understand what is water water-reducing agent.

Water reducing agent is a chemical additive, and the main component is a surfactant. It can greatly reduce the amount of water required for concrete, thus improving the strength and durability of concrete. Using this additive can save the amount of cement, reduce the cost of concrete, and improve the quality of construction.

So, what’s the purpose and function of the water-reducing agents?

Particularly, they include the following elements:

1. The effect of surfactants on water is reducing The surfactant that is contained in this water reducing ingredient may be applied to the surface of cement particles, causing them to become more dispersed, thereby reducing the demand for water in the concrete.

2. Dispersing effect Water-reducing agents will make the water within the concrete spread more uniformly, which can prevent the possibility of drying locally and settling.

3. Reduced water-water absorption: These agents reduce the amount of pores present in concrete, thereby improving its permeability and endurance.

The development history of water-reducing agents:

1. The first generation of water-reducing agent

Ordinary water reducing agent (water reduction rate ≧ 8%), also known as plasticizer; the main representative of the lignosulfonate system (sodium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, etc.).

2. The second generation of water-reducing agent

High-efficiency water-reducing agent (water reduction rate ≧ 14%), also known as superplasticizer; the main representative of the naphthalene system, melamine system, amino sulfonate system, and aliphatic system.

3 .Third generation water reducing agent

High-performance water-reducing agent (water reduction rate ≧ 25%); the main representative of polycarboxylic acid water-reducing agent, which can be divided into early-strength type, standard type, and slow-setting type.

In short water-reducing agent play an important role in concrete. It will not only increase the durability and strength of concrete, but also reduce concrete needed and cut costs. This is why water-reducing agents are an essential chemical ingredient in construction.

What is the role and mechanism of water

Posted on by adminLeave a comment

We often see concrete used on construction sites and in home improvement. However, you may not know that adding a water-reducing agent to concrete is a very important step. So, why do we need to add a water-reducing agent to concrete, and what is the function and mechanism of this additive? Next, we will reveal the answers for you.

First of all, let us understand what is water water-reducing agent.

Water reducing agent is a chemical additive, and the main component is a surfactant. It can greatly reduce the amount of water required for concrete, thus improving the strength and durability of concrete. Using this additive can save the amount of cement, reduce the cost of concrete, and improve the quality of construction.

So, what’s the purpose and function of the water-reducing agents?

Particularly, they include the following elements:

1. The effect of surfactants on water is reducing The surfactant that is contained in this water reducing ingredient may be applied to the surface of cement particles, causing them to become more dispersed, thereby reducing the demand for water in the concrete.

2. Dispersing effect Water-reducing agents will make the water within the concrete spread more uniformly, which can prevent the possibility of drying locally and settling.

3. Reduced water-water absorption: These agents reduce the amount of pores present in concrete, thereby improving its permeability and endurance.

The development history of water-reducing agents:

1. The first generation of water-reducing agent

Ordinary water reducing agent (water reduction rate ≧ 8%), also known as plasticizer; the main representative of the lignosulfonate system (sodium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, etc.).

2. The second generation of water-reducing agent

High-efficiency water-reducing agent (water reduction rate ≧ 14%), also known as superplasticizer; the main representative of the naphthalene system, melamine system, amino sulfonate system, and aliphatic system.

3 .Third generation water reducing agent

High-performance water-reducing agent (water reduction rate ≧ 25%); the main representative of polycarboxylic acid water-reducing agent, which can be divided into early-strength type, standard type, and slow-setting type.

In short water-reducing agent play an important role in concrete. It will not only increase the durability and strength of concrete, but also reduce concrete needed and cut costs. This is why water-reducing agents are an essential chemical ingredient in construction.

Uses of Titanium Nitride Ceramic Materials in Biomedicine

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What is titanium Nitride?

Titanium-nitride is a non-stoichiometric compound. It has a stable composition range of TiN0.37-TiN1.16, and the nitrogen content can be changed within a specific range without causing changes in the structure. TiN, a nonstoichiometric material, has a range of stable compositions between TiN0.37 and TiN1.16, with the nitrogen content being able to be adjusted within that range. The TiN Powder is usually yellow-brown. The ultrafine TiN Powder is black. TiN Crystals are golden yellow. TiN has melting points of 2950degC and a density between 5.43-5.44g/cm3. It also has a Mohs Hardness of 8-9 as well as high thermal shock resistance. TiN’s melting points are higher than those of most transition-metal nitrides. The density of TiN is lower than the majority metal nitrides. This makes it a material that is very heat resistant. The TiN crystallization is similar to TiC’s, but the C atoms have been replaced by N atoms.

Titanium Nitride as a Biomedical Material

Clinical medicine has widely used the occluder for the treatment of congenital diseases, such as the atrial septal defect, ventricular septal defect and patent arteriosus. Most common concentrics occluders contain nickel up to a maximum of 55% in nickel-titanium metal alloys. The body can become poisoned and allergic to nickel, which in turn may cause cancer. The surface membrane of the occluder Nickel-Titanium alloy may be destroyed. In addition, the release of nickel ions from the human body’s complex environment can increase the nickel content.

According to relevant studies, because titanium nitride is a biocompatible material (and was previously used in coronary-stents), thrombus formation is lower than with nickel-titanium. To address this problem, scientists developed a Cera Ceramic Membrane Occluder, using high-energy coating technology. It maintains both the original interventricular and atrial septal septal occluders based on the original Nickel-Titanium Alloy occluder. The occluder design and patent ductus archeteriosus occluder use plasma technology to evenly apply a titanium nitride (TiN) film onto the surface of nickel-titanium alloy powder. Using ion technologies, the metal Titanium coating and C N O and other compound are transformed into The biological Layer dramatically improves corrosion resistance and compatibility with biological tissue and blood. The comparison of the data from animal experiments shows that the Cera membrane occluder has a much higher performance in terms cell creeping growth compared to the normal nickel-titanium. It significantly reduces thrombosis risk and helps repair congenital heart defects. Platelet adhesion rates and hemolysis are also lower compared to the nickel-titanium standard occluder. Cera’s occluder was approved by other countries, including the European Union, India and Brazil. The Cera occluder has been used by more than thousands patients with congenital hearts disease.


(aka. Technology Co. Ltd., a trusted global chemical materials supplier & manufacture with more than 12 years experience, is a trusted source for high-quality nanomaterials. Our superfine titan nitride Powder is of high purity with a good particle size. If you need lower, please Contact us.