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US 6,486,084 B2Granted
Composite material and method of producing the same
AssigneeNGK Insulators, Ltd.
InventorsToshio Oda, Hiromichi Kobayashi, Tsuneaki Ohashi, Shinji Kawasaki
Life of this patent
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Abstract
A composite material has a quartz glass phase and a complex compound phase compounded with the quartz glass phase, which is made of one or more compounds selected from a group of silicon carbide, silicon nitride, silicon, titanium nitride and titanium carbide, as a main ingredient. The composite material can be used instead of quartz glass, and can prevent the generations of microcrack, tipping and particles after the mechanical working.
Claims8
A composite material comprising;
- a quartz glass phase;
- and a complex compound phase compounded with the quartz glass phase, which is made of one or more compounds selected from a group of silicon carbide, silicon nitride, silicon, titanium nitride and titanium carbide, as a main ingredient.
A method of producing a composite material, comprising the steps of:
- mixing a quartz glass powder and a compound powder made of one or more compounds selected from the group of silicon carbide, silicon nitride, silicon, titanium nitride and titanium carbide to obtain mixtures;
- forming the mixtures to obtain a formed body;
- and
- sintering the formed body at a temperature which is lower than the melting point of quartz glass and is lower than the melting point of the compound.
1 more element
Dependencies are inferred from the claim text.