Accession Number : ADD005394

Title :   Preparation of Ceramics.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rice,Roy W ; Wynne,Kenneth J ; Fox,William B

Report Date : 27 Jun 1978

Pagination or Media Count : 5

Abstract : This patent describes a method for preparing ceramic material from a polymer which comprises selecting a polymer from the class consisting of poly(diorganosilanes), poly(haloorganosilanes), poly(carbosilanes), polysilazanes, polycarbocarboranes, and polyborazines; heating said polymer to a temperature from 700 to 2000 C at a rate of at most 100 C/hr. in an inert atmosphere for at least one hour; and cooling to room temperature at a cooling rate which avoids thermal stresses. (Author)

Descriptors :   *Patents, *Ceramic materials, *Polymers, *Pyrolysis, Preparation, Decomposition, Polysilanes

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE