氮化硅陶瓷圆柱体merits

氮化硅是陶瓷中综合性能非常优秀的一种,尤其适合圆柱、滚子、柱塞、定位销等结构件。氮化硅陶瓷热膨胀系数低、导热率高,故其耐热冲击性极佳,可长期在 1000℃以上 使用,氮化硅陶瓷具有较高的强度和抗冲击性。

Description

氮化硅陶瓷圆柱体

氮化硅陶瓷圆柱体的优点

氮化硅陶瓷圆柱体具有超强的硬度和自润性,所以非常耐磨,尺寸统一,适合批量工业使用,质感细腻哑光,体现高致密烧结质量,HIP热等静压或气压烧结,适合于精密机械(半导体/轴承)行业。 此外,氮化硅陶瓷除氢氟酸外,不与其他无机酸反应,耐腐蚀性强。 而且,它抗热震性极佳,在空气中加热到1000℃再迅速冷却也不会破裂。

Applications of Silicon Nitride Ceramics

Silicon nitride ceramics have excellent mechanical, thermal and electrical properties. It is also one of the most thermodynamically stable high hardness industrial ceramic materials. It is ideal for bearing parts, especially those that need to work at high temperatures and pressures. Therefore, silicon nitride ceramic products are ideal for many industries, such as:

  • Rotary ball and roller bearings
  • Cutting Tools
  • Engine components: valves, rocker gaskets, sealing surfaces
  • Induction heating coil holder
  • Turbine blades, wheel blades, buckets
  • Welding and brazing fixtures
  • Heating Element Assemblies
  • crucible

Basic Properties of Silicon Nitride Ceramics

Silicon nitride ceramics are an inorganic ceramic material. Silicon nitride is very strong, especially hot pressed silicon nitride, which is one of the hardest materials in the world. It is characterized by high strength, low density and high temperature resistance.

  • Color: Gray and Gray-Black
  • Density: 3.15~3.25 g/cm3
  • Hardness: HRA 92~94
  • Maximum operating temperature: 1300 ~1600 °C
  • Thermal conductivity: 23-25 W.(MK)-1
  • Flexural strength: ≥900 Mpa
  • Fracture toughness: 6~8 (Mpa.m1/2)
  • Coefficient of thermal expansion (0~1400℃): 2.95~3×10-6/C

Suppliers of Silicon Nitride Ceramics

To Good Ceramics is a professional ceramic supplier, we have many years of experience in producing high quality precision ceramic parts. We utilize our experienced team and in-depth knowledge of ceramic materials to create the best precision ceramic products for our customers at competitive prices.

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