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Si3N4 Balll Mill Jar

Silicon Nitride has good high temperature strength, creep resistance and oxidation resistance, Silicon Nitride offers the low thermal expansion coefficient gives good thermal shock resistance compared with most ceramic materials.
Silicon nitride is sintered at high temperature( around 2000℃) and highly densified . Compared to silicon carbide, silicon nitride has better mechanical strength and thermal shocking resistance. It also posses excellent electrical insulating property, wear resistance and corrosion resistance


● Description

Silicon Nitride (Si3N4) has the most versatile combination of mechanical, thermal, and electrical properties of any technical ceramic material. It is a high performance technical ceramic that is extremely hard and has exceptional thermal shock and impact resistance. It surpasses most metals high temperature capabilities and has a superior combination of creep and oxidation resistance. Additionally, its low thermal conductivity and high wear resistance make it an excellent material that can withstand the toughest of conditions in the most demanding industrial applications. Silicon Nitride is an excellent choice when high-temperature and high-load abilities are needed.

● Physical Parameters

Chemical Composition: Si3N4≥95%
Bulk Density: 3.2±0.05g/cm3
Elastic Modulus: 350GPa
Hardness Vickers: 1870HV
Bending Strength: 780MPa
Fracture Toughness: 7.2MPa·m1/2
Thermal Expansion Coefficient: 3.2 10-6/K
Thermal Conductivity: 25W/(m·K)

● Specification Parameters

customize various types of vacuum jar according to customer’s needs.

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