The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2005
Filed:
Jun. 02, 2003
Sai-kwing Lau, Broadview Heights, OH (US);
Salvatore J. Calandra, Macedonia, OH (US);
Thomas D. Nixon, Akron, OH (US);
Edward R. Stover, Akron, OH (US);
Sai-Kwing Lau, Broadview Heights, OH (US);
Salvatore J. Calandra, Macedonia, OH (US);
Thomas D. Nixon, Akron, OH (US);
Edward R. Stover, Akron, OH (US);
B. F. Goodrich Company, Charlotte, NC (US);
Abstract
The present invention is a composite material and process to produce same. That material comprises a fibrous structure which is initially predominantly coated with elemental carbon; that fibrous structure is then subsequently predominantly coated with at least one ceramic material, e.g., boron carbide, which is non-reactive with silicon. The composite material also comprises a silicon matrix which is continuous and predominantly surrounds the fibrous structure, which has been initially predominantly coated with elemental carbon and subsequently predominantly coated with at least one ceramic material. The matrix which has a fine grain crystalline structure of predominantly 20 microns or less in size. The at least one ceramic material is discontinuous within that matrix. The fibrous material pulls out of the elemental carbon, which initially predominantly coats that fibrous structure, when the composite is subjected to fracture.