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Pressureless sintering of silicon carbide
Our company produces silicon carbide ceramic products by pressureless sintering method. Its characteristics are to make use of various technologies to promote sintering so as to make the SiC sintered blank achieve. 98% The theoretical density above is the theoretical density of SiC ceramics. Three point two one G/cm3 The content of silicon carbide is up to Ninety-nine More than%. The obtained SiC ceramic sintered body has excellent properties and its strength is 1600oC It is especially suitable for wear resistant, corrosion resistant and high temperature resistant applications, such as sealing rings, pump parts, grinding media, sand blasted mouths, bulletproof plates, etc. This product is the main product of our company.

 

Performance characteristics: good self lubrication, low friction coefficient (about 0.2), higher strength than pure graphite material, small specific gravity (1.65g/cm3), similar to graphite material self-lubricating properties, but wear resistance is better than graphite material, suitable for mass production.
It is suitable for workpiece with high dry friction resistance, such as sealing ring for mechanical seal, magnetic pump, sliding bearing of shielding pump, valve opening and closing parts with high corrosion resistance.


 

Graphite bearing SiC sliding bearing
SEM photos -200 micron
SEM photos -50 micron

 

performance Company Pressureless sintering of silicon carbide Adopt standard
purity SiC-Wt% Seventy -
Graphite content Wt% Thirty -
Other oxides Wt% Zero -
density G/cm3 Two point six five ASTM C 20
grain size Mu m - -
Modulus of elasticity MPa Two hundred and forty-six ASTM C 848
compressive strength GPa - -
Bending strength MPa One hundred and sixty GB/T6569-2006
fracture toughness MPa m1/2 - -
hardness HK500 1000-1200 GB/T16534-2009
Poisson's ratio   - -
specific heat J/kg K - -
Thermal conductivity W/m K One hundred and twenty-five ASTM C 408
Coefficient of thermal expansion 10-6K-1 (0-1500oC) - -
Weibull modulus   - -
Maximum service temperature OC One thousand three hundred and fifty -

ceramic material
Contact us
  • Tel: 0451-84368085
  • 0451-84368082
  • 0451-82296796
  • Fax: 0451-84368083
  • Address: East Lake street, Daoli District, Harbin
    Number 18
  • Zip code: 150090
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Copyright: Harbin Xinhui Special Ceramics Co., Ltd. Black ICP ready for No. 11003677 -1 Technical support: Hongxin network
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