Process for the production of dense boron carbide and transition

Details Process for the production of dense boron carbide and transition Process for the production of dense boron carbide and transition

1995-07-26

1998-02-24

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

264 296, 264676, 264682, C01B 3100, C04B 3334, C04B 3564, C04B 3700

Patent

active

057209103

ABSTRACT:
A process of producing high density articles of boron carbide and all transition metal carbides that optionally contain 1 to 50% by volume of borides is disclosed. The process involves the steps of homogeneously mixing boron carbide, titanium oxide and carbon powders, or homogeneously mixing transition metal carbide with its oxide, boron carbide and carbon when sintering transition metal carbides, forming the powder mixtures into a shaped green body, and sintering the body in a controlled atmosphere at a temperature of from 1900.degree. C. to 2100.degree. C. The shaped articles thus obtained have the theoretical density of at least 95% and preferably greater than 99% of theoretical density of selected composite and flexural strength of at least 350 MPa, preferably grater than 450 MPa.

REFERENCES:
patent: 4524138 (1985-06-01), Schwetz et al.
patent: 5223195 (1993-06-01), Kuwabara
patent: 5459114 (1995-10-01), Kaya et al.
patent: 5482673 (1996-01-01), Alexander et al.

Affiliated with

Also associated with

Rating

Process for the production of dense boron carbide and transition 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 the production of dense boron carbide and transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of dense boron carbide and transition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1873241