Introduction to Spherical Quartz siO2 Powder
Spherical powder of quartz
Also known as
Spherical silicon powder
Amorphous quartz is a powder of spherical, amorphous material. The main ingredient is silica. It is white in color, with uniform particle sizes, chemical stability, thermal stability and 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
Benefits include 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 addition of resin is minimal and quartz powder filling amounts are high. 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 electronic components’ performance.
Second, the stress in spherical granules is less than that in angular granules. Also, the stress concentration and strength of plastic sealant made from spherical Quartz powder are the lowest and highest. The yield of the integrated circuit chip when it’s encapsulated in spherical-powder plastic packing material is high. This makes it difficult to cause mechanical damage during transportation, installation and use.
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|
|Melting Point||1,600deg C (2,912deg F)|
|Boiling Point||2,230deg C (4,046deg F)|
|Solubility of H2O||Insoluble|
Spherical Quartz SiO2 Pulverization Methods
Flame melting method, plasma heating furnace technique, chemical synthesizer method, and hydrolysis are the most common methods to prepare sphere quartz powder.
Flame melting method
Ball formation is achieved by using a high temperature flame gun that emits 1600-2500 degrees Celsius heat. The powder then absorbs heat from the flame and is molten. This heat is transferred to the inside of powder particles, making them 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.
Plasma heating furnace method
: Hot plasma (also known as local thermodynamic balance plasma) is characterized by the presence of a local electron (Te), an ion (Ti) or a gas (Tg). These features are nearly identical. 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.
: 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 get spherical, silica powder. It has low uranium and is easy for people to agglomerate.
Hydrolysis is a method
Using a deionized water with different dipersants, the liquid SiCl4 is added at a constant speed to the hydrolysate. The quartz rod is used to stir the hydrolysate with high speed at the same 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 and optical ink, optical fibre, high grade precision ceramic manufacturing, electronic devices, electronic components of precision grinder, special paint coatings fillers, as well as in high-grade cosmetics.
Main supplier of Spherical Quartz SiO2 Pulver
Technology Co. Ltd. is a trusted global supplier of chemical materials and manufacturer. They have over 12 years experience in producing super high-quality chemicals, Nanomaterials, such as silicon powder.
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Powdered SiO2 from spherical Quartz
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