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| Ceralink, Inc. Rensselaer Technology Park 105 Jordan Road Troy, NY 12180 Phone: 518 283-7733 Fax: 518 283-9134 
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Silicon Nitride Silicon Nitride has good high temperature strength, creep resistance and oxidation resistance. Its low thermal expansion coefficient gives good thermal shock resistance compared with most ceramic materials. There are three main types of silicon nitride: reaction bonded, hot pressed and sintered. Reaction bonded is made by direct reacting compacted silicon powder with nitrogen, and produces a relatively low-density product compared with hot pressed and sintered silicon nitride; however the process has only a small volume change allowing net shape forming. Hot pressed and sintered silicon nitrides use liquid phase sintering aids to bond the particles together. Microwave sintering of silicon nitride has been demonstrated at Ceralink. Major uses of silicon nitride is for ball bearing and rollers, cutting tools, valves, turbine blades, thermocouple sheaths, glow plugs, welding jigs molten metal handling, and fixtures, welding nozzles Material: Ceramic |
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