Silicon Nitride Powder



Silicon (IV) Nitride 85% min. α phase

Silicon Nitride Powder is gray to white in color. It has high temperature strength, superior toughness, strong hardness, excellent abrasion resistance, good thermal shock resistance, smaller thermal expansion coefficient, good corrosion resistance, smaller shrinkage by reheating, good chemical resistance, and good high-temperature insulation properties.

Typical Applications:

Heat engine parts, nozzles, bearings, valves, armor, power    generating turbines, machine bearings, heat and corrosion resistant jigs, plastics filler, high temperature insulation materials, special refractories, surface reforming, and electronic materials.

Physical and Chemical Properties:

                           Formula:                           Si₃N₄

                            Typical Chemistry:         Si= 59.4%, N= 38.2%

                            Phase:                              85% min. alpha phase

                           Purity:                               99.8% (metals basis)

                           CAS #:                               [12033-89-5]

                           Formula Weight:             140.28

                           Density:                            3.44 gm/cm³

                           Melting Point:                  1900^oC (subl.)

   Form:                                Amorphous Powder

                          Particle Size:                   1 – 5 microns