Accession Number : ADD001030

Title :   Use of Alumina as a Sintering Aid in Manufacture of Hot Pressed Beryllia.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Greenspan,Jacob

Report Date : 02 Oct 1973

Pagination or Media Count : 2

Abstract : The patent describes a method for the fabrication of high strength beryllia-alumina alloys comprising the steps of preparing a raw powder mix of beryllium oxide containing 5 to 20% aluminum oxide by weight, and die-ram pressing in a partial vacuum at a temperature of about 1400C under a pressure of about 4000 p.s.i. A sintering aid mixture of alumina, magnesia and silica is also disclosed.

Descriptors :   *Hot pressing, *Beryllium oxides, *Patents, Alumina, Sintering

Subject Categories : Ceramics, Refractories and Glass
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE