Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing fiber containing article or fiber
Patent
1995-11-03
1998-06-09
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Producing fiber containing article or fiber
264641, 264647, 264643, 419 11, 419 13, 501 92, 501 952, 501 953, 501 974, C04B 35577
Patent
active
057628637
ABSTRACT:
A ceramic matrix composite material comprising a matrix containing silicon carbide as the primary component and silicon nitride as the secondary component is disclosed. The silicon nitride includes not more than 1% by weight of iron and reinforcements mixed and dispersed. The ceramic matrix composite material is manufactured, for example, by forming a matrix containing reaction sintered silicon carbide as the primary component and nitriding the free metal silicon produced in the sintering process so that the free metal silicon will be converted to fine silicon nitride particles. Said metal silicon used for reaction sintering already contains iron. These processes enable the containing of a comparatively large amount of reinforcements, as well as the improvement of heat resistance of the sintered compact and the suppression of the deterioration of reinforcements.
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William R. Moser, et al., "Kinetics Of Iron-Promoted Silicon Nitridation" Journal of Materials Research, vol. 1, No. 4, Aug. 1986, pp. 797-802.
Asayama Masahiro
Kameda Tsuneji
Suyama Shoko
Derrington James
Kabushiki Kaisha Toshiba
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