Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Heat and pressure simultaneously to effect sintering
Patent
1994-05-27
1996-01-09
Mai, Ngoclan
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Heat and pressure simultaneously to effect sintering
419 14, 419 19, 419 49, 75235, 75236, B22F 312
Patent
active
054826730
ABSTRACT:
A process for preparing ceramic composite comprising blending TiC particulates, Al.sub.2 O.sub.3 particulates and nickle aluminide and consolidating the mixture at a temperature and pressure sufficient to produce a densified ceramic composite having fracture toughness equal to or greater than 7 MPa m.sup.1/2, a hardness equal to or greater than 18 GPa.
REFERENCES:
patent: 4689077 (1987-08-01), Chevigne et al.
patent: 4749545 (1988-06-01), Begg et al.
patent: 4919718 (1990-04-01), Tiegs et al.
patent: 5015290 (1991-05-01), Tiegs et al.
patent: 5089047 (1992-02-01), Buljan et al.
patent: 5271758 (1993-12-01), Buljan et al.
patent: 5279191 (1994-01-01), Buljan
W. H. Tuan and R. J. Brook, "The Toughening of Alumina with Nickel Inclusions", Jl. of the European Ceramic Society 6 (1990) 31-37.
W. H. Tuan and R. J. Brook, "Processing of Alumina/Nickel Composites", Jl. of the European Ceramic Society 10 (1992) 995-100.
J. Mostaghaci, "Fabrication of Cermets from Alumina and Ni-Based Alloys", Ceramics Transactions, vol. 12, Ceramic Powder Science III, G. L. Messing, S. Hirano, and H. Hausner (eds.) Am. Ceram. Soc. (1990).
E. Breval, Z. Deng, S. Chiou, C. G. Pantano, "Sol-gel prepared Ni-alumina composite materials", Jl. of Mat. Sci. 27 (1992) 1464-1468.
R. P. Wahi, and B. Ilschner, "Fracture behavior of composites based on Al.sub.2 O.sub.3 -TiC", Jl. of Mat. Sci., 15 (1980) 875-885.
M. Lee and M. P. Borom, "Rapid Rate Sintering of Al.sub.2 O.sub.3 -TiC Composites for Cutting Tool Applications", Adv. Ceram. Mat. 3 [1] (1988) 38-44.
T. Ekstrom, "Alumina Ceramics with Particle Inclusions", Jl. of the European Ceram. Soc., 12 (1993) 487-496.
R. A. Cutler, A. C. Huford, and A. V. Virkar, "Pressureless-sintered Al.sub.2 O.sub.3 -TiC Composites", Mat. Sci. and Eng. A105/106 (1988) 183-192.
Alexander Kathleen B.
Becher Paul F.
Tiegs Terry N.
Waters Shirley B.
Adams Harold W.
Ericson Ivan L.
Griffin J. Donald
Mai Ngoclan
Martin Marietta Energy Systems Inc.
LandOfFree
Method for preparing ceramic composite does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for preparing ceramic composite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing ceramic composite will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1301049