Silicon nitride is a chemical compound of the elements silicon and nitrogen.
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17 Facts About Silicon nitride
2.
Nitridation of silicon powder was developed in the 1950s, following the "rediscovery" of silicon nitride and was the firstlarge-scale method for powder production.
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3.
Electronic-grade silicon nitride films are formed using chemical vapor deposition, or one of its variants, such as plasma-enhanced chemical vapor deposition (PECVD):.
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4.
Abnormal grain growth in doped silicon nitride arises due to additive-enhanced diffusion and results in composite microstructures, which can be considered as “in-situ composites” or “self-reinforced materials.
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5.
One of the major applications of sintered silicon nitride is in automobile industry as a material for engine parts.
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6.
In spark-ignition engines, silicon nitride is used for rocker arm pads for lower wear, turbocharger turbines for lower inertia and less engine lag, and in exhaust gas control valves for increased acceleration.
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7.
Silicon nitride bearings are both full ceramic bearings and ceramic hybrid bearings with balls in ceramics and races in steel.
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8.
Silicon nitride ceramics have good shock resistance compared to other ceramics.
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9.
Silicon nitride bearings are especially useful in applications where corrosion or electric or magnetic fields prohibit the use of metals, for example, in tidal flow meters, where seawater attack is a problem, or in electric field seekers.
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10.
In 2010 silicon nitride was used as the main material in the thrusters of the JAXA space probe Akatsuki.
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12.
Silicon nitride was chosen for use in the microshutters, because of its high strength and resistance to fatigue.
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13.
Bulk, monolithic silicon nitride is used as a material for cutting tools, due to its hardness, thermal stability, and resistance to wear.
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14.
Silicon nitride is often used as an insulator and chemical barrier in manufacturing integrated circuits, to electrically isolate different structures or as an etch mask in bulk micromachining.
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15.
Silicon nitride is used in the xerographic process as one of the layers of the photo drum.
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16.
Silicon nitride is used as an ignition source for domestic gas appliances.
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17.
Silicon nitride remained merely a chemical curiosity for decades before it was used in commercial applications.
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