DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High impact resistant ceramic composite

Abstract

A ceramic material and a method of forming a ceramic material which possesses a high impact resistance are disclosed. The material comprises: (a) a first continuous phase of [beta]-SiC; and (b) a second phase of about 25-40 vol % TiB[sub 2]. Al[sub 2]O[sub 3] is preferably used as a densification aid. The material is formed by hot-pressing the mixture at a temperature from greater than about 1800 C to less than the transition temperature of [beta]-SiC to [alpha]-SiC. The hot-pressing is performed at a pressure of about 2000 psi to about 4000 psi in an inert atmosphere for several hours and results in the formation of a two phase sintered ceramic composite material. 6 figures.

Inventors:
Issue Date:
OSTI Identifier:
7276852
Patent Number(s):
5032550
Application Number:
PPN: US 7-420922
Assignee:
Aluminum Company of America, Pittsburgh, PA (United States)
DOE Contract Number:  
AC04-87AL42548
Resource Type:
Patent
Resource Relation:
Patent File Date: 13 Oct 1989
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; HOT PRESSING; SILICON CARBIDES; TITANIUM BORIDES; ALUMINIUM OXIDES; COMPACTING; IMPACT STRENGTH; ALUMINIUM COMPOUNDS; BORIDES; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; FABRICATION; MATERIALS; MATERIALS WORKING; MECHANICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PRESSING; SILICON COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360601* - Other Materials- Preparation & Manufacture

Citation Formats

Derkacy, J A. High impact resistant ceramic composite. United States: N. p., 1991. Web.
Derkacy, J A. High impact resistant ceramic composite. United States.
Derkacy, J A. Tue . "High impact resistant ceramic composite". United States.
@article{osti_7276852,
title = {High impact resistant ceramic composite},
author = {Derkacy, J A},
abstractNote = {A ceramic material and a method of forming a ceramic material which possesses a high impact resistance are disclosed. The material comprises: (a) a first continuous phase of [beta]-SiC; and (b) a second phase of about 25-40 vol % TiB[sub 2]. Al[sub 2]O[sub 3] is preferably used as a densification aid. The material is formed by hot-pressing the mixture at a temperature from greater than about 1800 C to less than the transition temperature of [beta]-SiC to [alpha]-SiC. The hot-pressing is performed at a pressure of about 2000 psi to about 4000 psi in an inert atmosphere for several hours and results in the formation of a two phase sintered ceramic composite material. 6 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {7}
}

Patent:
Search for the full text at the U.S. Patent and Trademark Office Note: You will be redirected to the USPTO site, which may require a pop-up blocker to be deactivated to view the patent. If so, you will need to manually turn off your browser's pop-up blocker, typically found within the browser settings. (See DOE Patents FAQs for more information.)

Save / Share: