Alfa Aesar Silicon(IV) nitride, alpha-phase, 99.9% (metals basis)
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Alfa Aesar Silicon(IV) nitride, alpha-phase, 99.9% (metals basis)
MDL
MFCD00011230
EINECS
234-796-8
Chemical Properties
Formula
Si3N4 90% min (alpha form)
Formula Weight
140.28
Form
<1 Micron Powder
Melting point
1900° subl.
Density
3.2
Storage & Sensitivity
Ambient temperatures.
Solubility
Insoluble water.
Applications
Silicon(IV) nitride is used in automobile industry as a material for engine parts such as diesel engines and glowplugs. It is used for rocker arm pads for lower wear in spark-ignition engines. Ceramics made from Silicon(IV) nitride show good shock resistance. Similarly, bearings made from this find application in the main engines of NASAs space shuttle. It acts as an insulator and is used in the manufacturing of integrated circuits.
Notes
Incompatible with strong oxidizing agents.