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MATERIALS CENTER
MATERIALS CENTER

Materials

NATERIAL

HYSN-GSP

Material Characteristics

Adopting ultrafine silicon nitride micropowder (grain size usually in 0.5-1.0μm) as raw material, adding certain sintering additives, usually Al2O3-Y2O3, usually need to add binder, dispersant, etc., the solvent can be either water or alcohol, after spray-drying process to form the granulated powder, using dry or isostatic pressure molding process, high temperature sintering under nitrogen pressure protection (temperature usually in the range of 1800-2000 ℃), the sintered density is usually greater than 98% of the theoretical density, the density generally reaches 3.20-3.25g/cm3, the grain size is generally not more than 10μm.

 

Performance Characteristics

  • Extremely high bending strength (usually three-point bending strength in 600-900MPa)
  • Very high fracture toughness (usually grooving method of fracture toughness greater than 6.5MPa / m1/2)
  • Excellent high temperature resistance properties (usually 1400 ℃ in air for long-term use)
  • Impact resistance properties
  • It is commonly used in the manufacture of high temperature and shock resistant products