Ceramic composite material and method of its manufacture

Details Ceramic composite material and method of its manufacture Ceramic composite material and method of its manufacture

2008-03-25

2008-03-25

Group, Karl E (Department: 1755)

Compositions: ceramic

Ceramic compositions

Refractory

C501S100000, C501S090000, C501S096100, C106S038280, C106S038900

Reexamination Certificate

active

07348286

ABSTRACT:
Ceramic composite material that has excellent mechanical properties within a range from room temperature to high temperature and high die release with respect to glass, resins, ceramics, and similar substances. The ceramic composite material is composed of a ceramic phase and a phase containing 2 to 98 wt. % carbon and/or boron nitride as the main component, and that has a mean particle size of 100 nm or less, wherein the thermal expansion coefficient is within a range of 2.0-9.0×10−6/° C. and the surface roughness after surface polishing is 0.05 μm or less. The sintered body of the material is obtained by sintering a mixture of powdered starting materials at a sintering temperature of 800-1500° C. and a sintering pressure of 200 MPa or higher.

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M. Yoshimura, et al., “Development of Non-Oxide-Based Nano-Structured Ceramics,” SEI Technical Review, vol. 164, Mar. 2004, pp. 24-29, XP009041290.

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