NR1745 (Discontinued) Sialon Powder (Silicon Aluminum Oxynitride) (Discontinued)

Description

Sialon, a fine grain nonporous technical grade engineering material, is a silicon nitride ceramic with a small percentage of aluminum oxide added. It is a reacted mixture of SiN, SiO2, Al2O3, and AlN. Sialon is outstanding in nonferrous metal contact. It is highly thermal shock resistant, strong, and is not wet or corroded by aluminum, brass, bronze, and other common industrial metals.

The combination of silicon nitride and aluminum oxide produces a material with the excellent strength, hardness, fracture toughness and low thermal expansion of silicon nitride, enhanced by corrosion resistance, good high-temperature strength and oxidation resistance imparted by the aluminum oxide.

Synonyms

sialon powder, Si2ON2, silicon aluminum oxynitride powder, aluminum silicon oxynitride, ceramic composite,

Physical Properties

a) Excellent thermal shock resistance
b) Not wetted or corroded by nonferrous
c) High strength check
d) Good fracture toughness
e) Good high-temperature strength
f) Low thermal expansion
g) Good oxidation resistance

Typical Applications

a) Thermocouple protection tubes for nonferrous metal melting
b) Immersion heater and burner tubes
c) Degassing and injector tubes in nonferrous metals
d) Metal feed tubes in aluminum die casting
e) Welding and brazing fixtures and pins