Sialon containing ceramic sinter

Details Sialon containing ceramic sinter Sialon containing ceramic sinter

1990-05-21

1993-05-25

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 92, 501 96, 501 97, C04B 3556, C04B 3558

Patent

active

052140091

ABSTRACT:
A ceramic sinter whose mother phase substantially satisfies a sialon composition. This sialon containing ceramic sinter contains at least one kind of compound selected from the group of oxides, carbides, nitrides, and silicides of hafnium, niobium, or titanium in the range of from 0.2 to 40 weight %. The compound of hafnium, niobium, or titanium is present independently in the mother phase in particle-dispersive form. The dispersed particles contribute to improving the mechanical strength, fracture toughness, and heat impact resistance because the sinter body is reinforced by dispersion. The sialon containing ceramic sinter is so excellent in high-temperature properties that it is suitable for use in high-temperature structural materials. Further, a .beta.-type sialon containing ceramic sinter made by forming and firing a ternary material powder of silicon nitride, aluminum oxide, and hafnium compound not only is excellent in improved effects but also has an ample freedom in shaping because a slip casting method can be applied.

REFERENCES:
patent: 4547470 (1985-10-01), Tanase et al.
patent: 4745091 (1988-05-01), Landingham
patent: 4814581 (1989-03-01), Nunogaki et al.
patent: 4818635 (1989-04-01), Ekstrom et al.
patent: 4880755 (1989-11-01), Mehrotra et al.
patent: 4881950 (1989-11-01), Bhat et al.
patent: 4902653 (1990-02-01), Komatsu et al.
patent: 4923829 (1990-05-01), Yasutomi et al.
Chemical Abstracts, "Abrasion-resistant Sialon-based Ceramics", Jun. 1985, vol. 102, No. 22, Abstract No. 189759t.
David Richerson "Modern Ceramic Engineering" pp. 136-137 1982.

Affiliated with

Also associated with

Rating

Sialon containing ceramic sinter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sialon containing ceramic sinter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sialon containing ceramic sinter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-897188