Sialon composites and method of preparing the same

Details Sialon composites and method of preparing the same Sialon composites and method of preparing the same

1992-03-06

1993-07-13

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 98, C04B 3558

Patent

active

052273466

ABSTRACT:
This invention is a multi-phase SiAlON composite having a first alpha-SiAlON phase prepared from a multi-cationic mixture including oxides and nitrides of strontium, at least one of yttrium or a rare earth metal, and at least one other metal such as Ca, Mg, Li or Na. The composite also has a second phase of beta-SiAlON, and a material of a third phase of intergranular amorphous morphology including Si, Al, O, and N combined with a mixture of strontium, at least one of Ca, Mg, Li or Na and at least one of yttrium or a rare earth element. The multi-phase SiAlON exhibits excellent strength, fracture toughness, hardness, creep resistance and oxidation resistance. The material is useful for high wear, high temperature machine or engine components and tools.

REFERENCES:
patent: 4506020 (1985-03-01), Butler et al.
patent: 4547470 (1985-10-01), Tanase et al.
patent: 4563433 (1986-01-01), Yeckley et al.
patent: 4692420 (1987-09-01), Oda et al.
patent: 4870036 (1989-09-01), Yeh
patent: 4880755 (1989-11-01), Mehtrotra et al.
patent: 5032553 (1991-07-01), Tarry

Affiliated with

Also associated with

Rating

Sialon composites and method of preparing the same 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 composites and method of preparing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sialon composites and method of preparing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2311922