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What is Spherical Al2O3 Powder?

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What is it? Spherical HTMLO3 powder ? Aluminium oxide can be described as an inorganic compound with the chemical formula Al2O3. It is a high-hardness compound that has a melting temperature of 2054degC, and a boiling temperature of 2980degC. It is an ionized crystalline that can be easily ionized at high temperatures. This crystal is commonly used in the production of refractory materials.
Industrial alumina is made from bauxite, Al2O3*3H2O and diaspore. Chemical methods are used to prepare Al2O3 with high purity requirements. There are many Al2O3 isomorphs. More than 10 types are known. There are generally three crystal forms of Al2O3, which are a-Al2O3,-b-Al2O3, or g-Al2O3. They all have different structures and different properties. At temperatures over 1300°C, it can be almost entirely converted into a Al2O3.
The high-temperature melt spraying process produces spherical Alumina with high sphericity. This alumina has excellent performance as a filler for rubber, plastics, ceramic raw materials.
The key features of Powder Spherical al2O3
1. High filling density. This product is capable of filling rubber and plastics with high density.
2. High thermal conductivity. High filling density permits the production of compounds that have a higher thermal conductivity and a higher heat dissipation than crystalline silicona.
3. Low abrasivity:
Its Spherical shape makes it less likely to wear forming machines, dies, and kneading equipment.
Aluminum Oxide Properties
Other Titles Alumina, aluminum (III), oxide, aluminum trioxide, and Al2O3 powder
No. 1344-28-1
Combination Formula Al2O3
Molecular Weight 101.96
Appearance Powder White
Melting Point 2072 degC
Boiling Point 2977 degC
Density 3.95 g/cm3
Solubility of H2O N/A
Exact Mass 101.948 g/mol
Spherical Al2O3 Powder CAS 1344-281
Spherical Al2O3 Pulver is used in a variety of applications
1. Spherical Micropowder can be used as a ceramic material. It has excellent pressing properties and sintering capabilities, which are extremely helpful for the production high-quality ceramic products.
2. It can be used as a grinding or polishing material.
3. This is used in the petrochemical and petroleum industries. There are increasing requirements for the pore size distributions and the pore structure of the carrier alumina. You can adjust the particle size configuration to control formed catalyst carrier particles. Distribution and pore size.
4. The thermally conductive composite spherical aluminum powder has a low thickening range and excellent filling performance. It can also be used to create new composite materials with high thermal Conductivity (such as thermally conducting gaskets, thermallyconductive silicone grease, thermallyconductive potting) Glue and thermallyconductive plastics. You can also use it to create artificial teeth or bones.
The main supplier of Spherical Powder of Al2O3
Tech Co., Ltd. () is a professional oxide powder Over 12 years’ experience in chemical products development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
You can find high-quality powdered boron carbide here Please contact us Send an inquiry


Application Fields of Spherical Quartz Powder

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What is spherical Quartz Powder?

Spherical quartz powder is a good choice for its smooth surface, large specific area and high chemical stability. The first is that the spherical material has good fluidity. It can be mixed evenly with resin to form the film. Although the amount of resin used is minimal, the quartz powder filling volume can be high and may reach as high as 90.5%. The thermal conductivity of the molding compound will be lower if the quartz powder is used as a filler. The performance of electronic components that are produced is better when they are close to monocrystalline silicon’s temperature expansion coefficient. Second, the stress of the cylindrical powder is only 60% lower than the stress of angular powder. Furthermore, the plastic molding compound made with spherical Quartz powder has the lowest stress concentration, as well as the highest strength. The spherical material has a smooth, low friction coefficient and wear-resistant surface that can help extend the mold’s life.

Spherical quartz powder’s main applications

There are many uses for sphered quartz powder. Electronic packaging is its biggest market. Electronic packaging is the support industry for integrated circuits. As integrated circuits become more complex, the requirements for packaging materials are rising. Packaging forms are continually optimized and up-dated to meet these new requirements. The main components of electronic packaging include substrate materials, plastic materials, lead frames, and solder. Plastic packaging has grown rapidly because of its simplicity, cost-effectiveness, and ability to be mass produced. Plastic packaging is responsible for 95% global integrated circuits market.


Spherical silica powder is not only beautiful in form, but also has high chemical purity. It is able to meet the technical requirements of high end integrated circuits. It can be used to reduce the plastic packaging material’s thermal expansion coefficient and dielectric constant. The earth increases the product’s rigidity, weather resistance. impact resistance. tensile strength, moisture resistance and flame resistance. This makes it an essential component of electronic package design. In addition to its main use in electronic packaging, spherical Quartz powder can also serve as filler for special paints or coatings.


Tech Co., Ltd. is a professional spherical powder supplier. It has over 12 years’ experience in chemical products development and research. We accept credit cards, T/T and Paypal payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.


Send us an inquiry if you’re looking for high-quality spherical Quartz powder.

What is Spherical Quartz SiO2 Powder?

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Introduction to Spherical Quartz siO2 Powder Spherical powder of quartz Also known as Spherical silicon powder Amorphous quartz is a powder of amorphous silica. The individual particles are spherical. It is white in color, with uniform particle sizes, good transparency, chemical and thermal stability, safety, insoluble in water, and has high levels of safety.
Quartz powder in spheres It is used to make large-scale integrated circuit packaging. It is also used for high-tech applications such as aerospace, fine chemicals and daily cosmetics.

Physicochemical properties of Spherical Quartz SiO2 powder
Quartz powder in spheres It offers the benefits of a smooth surface and large specific area.
First of all, the powder is fluid and can be stirred with resin to form an even film. The resin can be added in small amounts, but the amount of quartz powder used for filling is substantial. The mass fraction can go up to 90.5%. The more quartz powder added to the mix, the lower its thermal conductivity. Additionally, the less thermal expansion coefficient the plastic sealing material has, the higher the performance of electronic components.
Second, the stress in spherical granules is less than that in angular granules. Also, the stress concentration and strength of plastic sealant made of spherical Quartz powder are the lowest and highest. It is therefore difficult to damage the integrated circuit chips during transport, installation and use if the integrated circuit chip has been encapsulated in spherical packing material made of spherical quartz powder.
Third, because the surface of the powder is smooth, it has a low friction coefficient, wear is minimal and molds can last for more than one time.
Spherical Quartz SiO2 Powder Properties
Other names fused quartz, spherical quartz, spherical SiO2, silica
No. 7631-86-9
Formula compound SiO2
Molecular Weight 60.09
Appearance white powder
Melting Point 1,600deg C (2,912deg F)
Boiling Point 2,230deg C (4,046deg F)
Density 2533kg/m3
Solubility of H2O Insoluble
Exact Mass 59.9668
Spherical Quartz Powder Spherical SiO2

Spherical Quartz SiO2 Pulverization Methods
Flame melting, plasma heating furnace and chemical synthesis are the most common methods of making spherical powder.
1. Flame melting method The principle behind ball-forming is that high-temperature torch guns emit 1600-2500 high temperature flame. Once the powder is in the high-temperature area, its angular surface absorbs heat. This heat is transferred to the powder inside, and the powder particles become completely molten. Surface tension causes the object to always move to the stable condition, while the spherical shape is the most stable, in order to accomplish the product’s purpose.
2. Plasma heating furnace method Hot plasma is also known locally as thermodynamic equilibrium plasma. The plasma’s main features include the temperature of the local electron Te, the ion Ti and the gas Tg. The thermal plasma category includes arc plasma, high-frequency and induction plasma.
High-frequency plasma melting is an efficient method of producing spherical quartz. The method uses moderate temperatures, stable control, high yield, and a high yield to achieve a higher level of spheroidization. Similar to the flame melting method, its principle and procedure are the same. The only difference is that the plasma generator is switched from a high-temperature heat source.
3. Chemical synthesis : Silica sol emulsion at a specific temperature was treated using ammonia/ammonium bicarbose. The gel was then treated with acid to obtain hydrated, spherical, silica. Finally, the gel was refined and heat-treated in order to obtain spherical, silica powder. It has low uranium and is easy for people to agglomerate.
4. Hydrolysis is a method : Add the liquid SiCl4 and deionized water with different dipersants at constant speed. The hydrolysate can then be stirred with a quartz rod at high speed. After washing, drying, and filtering, the hydrolysate has been dried, dehydrated to a constant weight in an oven at 100-200 degrees Celsius, and then transferred to the high temperature sintering furnace. High-temperature dehydroxylation at different temperatures can result in high-purity spherical quartz crystal powder.

Spherical Quartz SiO2 Pulverized for Applications
Quartz powder’s superior performance includes high dielectric, heat resistance and moisture resistance. It is also resistant to corrosion. It can be used as a substrate or packaging material in large-scale and very large-scale integrated Circuits.
Spherical quartz powder is also widely used in electronic inks, optical fibers, high grade precision ceramic manufacturing and optical devices.

Main Supplier of Spherical Quarried SiO2 Powder
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemicals and nanomaterials. They have over 12 years experience in producing super-high-quality chemicals, such as silicon powder.
High-quality products are what you want Powdered SiO2 from spherical Quartz Please feel free and contact us to send an inquiry. (brad@ihpa.net)

The Seven Methods for Preparing Spherical Alumina

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Spherical Alumina Spherical alumina is produced by high-temperature melting, high spherical rates, high alphaphase aluminum oxide content. This product has superior performance in rubber, plastic, and ceramic feedstock. Here is a summary of the methods for preparing spherical-grade alumina. Each method has its own characteristics.
Here are seven ways to prepare spherical aluminum:
1. Various sedimentation method
The precipitation process in homogeneous solutions is a crystal nuclear reaction. After that, the aggregation becomes greater and eventually from the solution from solution, it is usually unbalanced. But, if you lower the concentration of precipitant in homogeneous, even slowly Generation, then large numbers of microcrystals nuclei will be evenly produced. Finally, finely precipitated particle are uniformly dispersed throughout the entire solution, and a balance state is maintained over a longer period. Method for average prediction. Al2 (SO4)3, Al (NO3) 3 & urea are used as raw materials. Under the oil bath at 98 degrees C, the hydroxide produced by slow hydrolysis is precipitant. After calcination, the size and shape of the precursors can be adjusted by adjusting the proportion of SO422- with NO3-. Al2 (SO4) 3. The obtained colloid particles have a very good shape. This method was used in Al2(SO4) 3 and Urea as raw materials. The spherical (and hollow spherical) alumina powders were prepared under different conditions. A homogeneous precipitation process is possible if the precipitated particles obtained fall within the range for colloid particles. In addition to the conditions of SO42 – present, it is often difficult to finally form a glue of the globiosis in the gelation of sol particles to finally form a globiotype, so people think that this formation of sol-emulsion-condensation Gladle.
2. Sol-emulsion-gel method
This method is based on the sol-gel method. To obtain spherical powder particles from the oil phase, one uses the interface tension of both the oil and the water phases to form small spherical droplets. The aluminum hydrolysis process produced the spheroidized alu powder. In this case, 50% of the aluminum was removed, 40% of the acetonitrile and 9% of the dispersed water were retained. Using hydroxypropylcellulose as a dispersant to obtain a spherical g-alumina powder having a very good spherical degree.
3. Drip method
The droplet method is used for binding the alumina sol to the oil layer (usually using petroleum oil, mineral oil, or paraffin). The resulting spherical sol particle is then gelled in an alkaline ammonia solution. This method further enhances the sol-emulsion gel method.
4. Use templates
The template method controls the morphology during the production of spherical foodstock. The product is often hollow or has a nuclear-shell structure. The aluminum powder surface is used for simplifying the aluminum powder’s surface. While the template method can be used to prepare an air spherical ball sphere, it has limitations. The preparation steps are more involved and require more effort.
5. Gas solve decomposition method
The aerosol decomposition process is usually based upon an aluminum salt. It uses the properties of aluminum alcohol and high-temperaturepyrolysis to make aluminum salt. Next, it uses phase transition to alkoxide gasify, then contact with liquid water, then pick up high temperature or direct high temperatures, thereby achieving transitions of gas-liquid solid or gas-solid phase and finally, creating a spherical form of alumina powder. Complex experiments involving reaction moieties as well as atomizing moiety are key to this method.
6. Radio frequency induction plasma method
Radio frequency plasma treatment of alumina dust using radio frequency radiation. This plasma has high energy density and high heating power. It also allows for simple material processing. The powder is free from any electrodes and therefore not contaminated by electrode evaporation. It is possible for purity to be maintained. Additionally, irregularly shaped particles of alumina are sprayed into plasma torch with the feed gas. Plasma melts rapidly. Droplets will quickly solidify, creating spherical particle.
7. Jet
The essence and structure of spinal alumina are formed quickly by surface tension. You can divide it into spray heat, spray drying, and spray melting Law, depending on the characteristics of phase transformation. AlCl3, Al2 SO4) 3, Al (NO3) 3 solution form small droplets through atomization. The process also requires a high thermal decomposition temperature of around 900°C. The aluminum salt solution is first mixed with ammonia to form an alkali sol. After that, spray the alumina sol at between 150 and 240 C.
Tech Co., Ltd. () is a professional Spherical Alumina Over 12 years of chemical products research and product development experience. We accept credit cards, T/T and Paypal payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.

Reasons for Spheroidization of Spherical Quartz Powder

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What is spherical Quartz Powder?

Spherical Quartz Powder, also known by spherical Silica powder, is an amorphous powder of quartz that has particles that are spherical in form and whose main constituent is silicon dioxide.

Spherical quartz is used primarily for copper clad laminations and epoxy mold compound fillers in large scale integrated circuit packaging. However, it also has applications across high-tech areas such as aerospace, fine chemicals, and everyday cosmetics.

Why is Quartz Powder Spheroidized

1. The ball has a small surface area, isotropy, fluidity, and filling quantity. It can have a mass ratio of 90.5%. The filling speed of silica micropowder can be increased.


The filling rate for silicon micropowder is higher, but the plastic sealing compound’s thermal expansion coefficient is lower. The thermal conductivity of the plastic sealing material is also lower, so it is more similar to monocrystalline silicon. This will improve the performance of electronic components.


2. The strength and stress concentration of the plastic sealing compound made from spherical dust is the lowest. The plastic sealing compound made of spherical is stronger than the one made from angular. It has a stress level of 0.6. When the integrated circuit chips are encapsulated by the spherical dust plastic sealing compound, the yield is high. However, it is difficult to cause mechanical damage during transportation, installation and use.


3. Spherical powder’s friction coefficient is low, so the mold wear is very minimal. The mold also has a long service-life. The service life of the mold is doubled when compared to angular powder. The cost of plastic sealing compound packaging molds is high. It is therefore necessary for some to be imported.


4. Silicon micropowder has the ability to strengthen epoxy resin. Spherical powder can also enhance this effect.


Tech Co., Ltd. is a professional supplier spherical powder with more than 12 years of chemical products research and design experience. We accept credit cards, T/T and Paypal payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.


Send us an inquiry if you’re looking for high-quality spherical Quartz powder.

What is Spherical Quartz Powder?

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What is it? Spherical Quartz Powder ? Spherical quartz powder, made from quartz stone, is obtained after purification. Amorphous powder is made from irregularly angular particle into regular spherical particles.
The key features of Spherical Quartz Powder
Spherical quartz powder offers the benefits of a smooth surface and large specific surface area. It also has high hardness and stability. First, the spherical material is very fluid. The resin is mixed evenly with it to form a film. The greater the amount of quartz powder used to fill the mold, the lower its thermal conductivity. Also, the thermal expansion coefficients of the molding compound are smaller. And the higher the thermal expansion of single-crystalline silicon, the better the electronic components will perform. The stress of spherical granules is less than half that of angular powder. Furthermore, the mold compound made of spherical granules has the lowest stress concentrations and highest strength. Finally, the surface of spherical quartz powder is smooth. The friction coefficient is low and the wear on molds is minimal. This can help extend the mold’s life expectancy by up to one-third.
Spherical Quartz Powder Spherical SiO2 Properties
Other Titles Fused quartz, spherial quartz, spherical SiO2, silica
No. 7631-86-9
Combination Formula SiO2
Molecular Weight 60.09
Appearance Powder White
Melting Point 1,600deg C (2,912deg F)
Solubility of in water N/A
Density 2533 kg/m3
Purity 99.5-99.9%
Particle size 10-30nm
Boling Point 2,230deg C (4,046deg F)
Specific heat N/A
Thermal Conductivity N/A
Thermal Expansion N/A
Young’s Modulus N/A
Exact Mass 59.9668 g/mol
Monoisotopic 59.967 D
Spherical Quartz Powder Spherical SiO2
Spherical Quartz powder’s uses
The applications of spherical powder quartz are many. Electronic packaging is the biggest market for it. Electronic packaging is an industry that supports integrated circuits. As integrated circuits become more sophisticated, the requirements for packaging materials are rising. Packaging forms are continually optimized and up-dated to meet these new requirements. The main materials for electronic packaging include substrate material, plastic packing material, lead frame, and solder. Plastic packaging is a low-cost and easy-to-make product that can be mass produced in large quantities. This has helped it grow rapidly. Plastic packaging is responsible for 95% worldwide integrated circuit market. %above. EMC is the main plastic encapsulant. It houses more than 95% microelectronic component.
1. Microelectronic packaging must be able to withstand high levels of moisture, stress, low alpha-rays, dip soldering, reflow soldering, and plastic sealing. To address this issue, epoxy molding compounds must be doped in the resin matrix with inorganic materials. Nearly all inorganic materials used currently are quartz micropowder or silicon micropowder. Large-scale and ultra-large scale integrated circuits now have more stringent requirements for packaging materials due to their rapid growth. Quartz powder, an important support material for EMC requires that its particle size be within the required packaging range. Additionally, it must be pure. High and low radioactive elements are essential for particle shape. Spheroidization requirements apply to quartz powder.
2. Spherical silicon nanopowder has a great shape and can also meet many technical requirements for high-end integrated circuits. It is a key ingredient in electronic packaging. Spherical quartz can be used not only in electronic packaging, but also in high-end cosmetics, electronic inks, laser fibers, optical fibres, precision grinding optical devices, electronic components, and fillers for special paint coats.
The main supplier of Spherical Quartz Powder
Tech Co., Ltd. () is a professional oxide powder Over 12 years’ experience in chemical product development and research. We accept credit cards, T/T and West Union payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
You can find high-quality powdered boron carbide here Please contact us Send an inquiry