High pressure synthesis of cubic boron nitride from Si …

Groven, and Francisco Zaera, Reaction of Methylcyclopentadienyl Manganese Tricarbonyl on Silicon Oxide Surfaces: Implications for Thin Film Atomic Layer Depositions, Organometallics, 33(19), 5308–5315 (2014).

Synthesis of cubic silicon nitride - Harvard University

Lee et al., “Anomalous Growth and Characterization of Carbon-Coated Nickel Silicide Nanowires,”
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Synthesis of cubic silicon nitride

The nitridation of silicon powder was developed in the 1950s, following the "rediscovery" of silicon nitride and was the first large-scale method for powder production. However, use of low-purity raw silicon caused contamination of silicon nitride by and . The diimide decomposition results in amorphous silicon nitride, which needs further annealing under nitrogen at 1400–1500 °C to convert it to crystalline powder; this is now the second-most important route for commercial production. The carbothermal reduction was the earliest used method for silicon nitride production and is now considered as the most-cost-effective industrial route to high-purity silicon nitride powder.

Synthesis and characterization of cubic silicon carbide …

The of silicon nitride and silicon are different. Therefore or can occur, depending on the deposition process. Especially when using PECVD technology this tension can be reduced by adjusting deposition parameters.

Woo, "Method of heteroepitaxial growth of beta silicon carbide on silicon", US Patent No.
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Francisco Zaera Surface Group: Publications

One of the major applications of sintered silicon nitride is in automobile industry as a material for engine parts. Those include, in , for faster start-up; precombustion chambers (swirl chambers) for lower emissions, faster start-up and lower noise; for reduced engine lag and emissions. In , silicon nitride is used for pads for lower , turbocharger for lower inertia and less engine lag, and in for increased acceleration. As examples of production levels, there is an estimated more than 300,000 sintered silicon nitride turbochargers made annually.

examples include boron nitride and silicon nitride

Silicon nitride ball bearings are harder than metal which reduces contact with the bearing track. This results in 80% less friction, 3 to 10 times longer lifetime, 80% higher speed, 60% less weight, the ability to operate with lubrication starvation, higher corrosion resistance and higher operation temperature, as compared to traditional metal bearings. Silicon nitride balls weigh 79% less than tungsten carbide balls. Silicon nitride ball bearings can be found in high end automotive bearings, industrial bearings, , motorsports, high-end MTBs, racebikes, rollerblades and . Silicon carbide bearings are especially useful in applications where corrosion, 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.

Silicon is a chemical element with symbol Si and atomic number 14

Bulk, monolithic silicon nitride is used as a material for , due to its hardness, thermal stability, and resistance to . It is especially recommended for high speed of . Hot hardness, fracture toughness and thermal shock resistance mean that sintered silicon nitride can cut cast iron, hard steel and nickel based alloys with surface speeds up to 25 times quicker than those obtained with conventional materials such as tungsten carbide. The use of Si3N4 cutting tools has had a dramatic effect on manufacturing output. For example, face milling of gray cast iron with silicon nitride inserts doubled the cutting speed, increased tool life from one part to six parts per edge, and reduced the average cost of inserts by 50%, as compared to traditional tools.

Staff Profile - City University of Hong Kong

Hoffman Chemistry of Materials 2 235 (1990)


"Titanium Nitride Thin Films: Properties and APCVD Synthesis Using Organometallic Precursors" B.

Synthesis and characterization of nearly monodisperse …

Silicon nitride bearings are both full ceramic bearings and ceramic hybrid bearings with balls in ceramics and races in steel. Silicon nitride have good resistance compared to other ceramics. Therefore, ball bearings made of silicon nitride ceramic are used in performance . A representative example is use of silicon nitride bearings in the main engines of the NASA's .