Process for making silicon nitride articles

Details Process for making silicon nitride articles Process for making silicon nitride articles

1987-12-21

1990-07-24

Dixon, Jr., William R.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

501 97, 501 98, 264 86, 264 65, 264 66, 423344, C04B 3558

Patent

active

049434012

ABSTRACT:
A process for making silicon nitride articles of manufacture such as an internal combustion engine valve (2) by providing a homogeneous water-base slurry of silicon nitride powder and at least one nitriding agent and permitting the slurry to age for a time effective to enable a chemical reaction to occur and then reducing the water content sufficiently to form the article and thence forming and nitriding the article using a compound nitriding cycle.

REFERENCES:
patent: 4067943 (1978-01-01), Ezis et al.
patent: 4471060 (1984-09-01), Dickie et al.
patent: 4519967 (1985-05-01), Crosbie et al.
Atkinson et al., "Nitridation of High Purity Silicon", Journal American Ceramic Society, vol. 59, No. 7-8, 285-289.
Shaw et al., "Thermodynamics of Silicon Nitridation: Effect of Hydrogen", Communications of American Ceramic Society, C180-C181, Nov. 1982.
Mangels, "effect of Rate-Controlled Nitriding and Nitriding Atmospheres on the Formation of Reaction Bonded Si.sub.3 N.sub.4 ", Ceramic Bulletin, vol. 60, No. 6, 1981.
Moulson, "Review Reaction-Bonded Silicon Nitride: Its Formation and Properties", Journal Materials Science, 14(1979), 1017-1051.
Sacks et al., "Properties of Silicon Suspensions and Slip-Cast Bodies", Ceramics Engineering and science Proceedings, vol. 6, No. 718.
Chemical Abstracts, vol. 107, No. 22, Nov. 1978, Abstract #107: 203934h.
Chemical Abstracts, vol. 103, No. 10., Sep. 1985, Abstract #103: 75322K.

Affiliated with

Also associated with

Rating

Process for making silicon nitride articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for making silicon nitride articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making silicon nitride articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1266791