Accession Number : ADD005641

Title :   Method of Fabricating Silicon Nitride Bodies.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Mazdiyasni,Khodabakhsh S ; Cooke,Charles M

Report Date : 12 Sep 1978

Pagination or Media Count : 5

Abstract : In a method for fabricating highly dense, polycrystalline silicon nitride bodies, a mixture of silicon nitride powder and an oxide, hydride or nitride of an element of the lanthanide series in powder form is hot pressed at a temperature ranging from 1600 to 1750 C for a period of 30 to 60 minutes. The method is particularly useful for fabricating structural components, such as stators, blades, airfoils and buckets in high performance gas turbine engines. (Author)

Descriptors :   *Patents, *Hot pressing, *Silicon nitrides, Powders, Polycrystalline, Rare earth compounds, Sintering, Turbine parts, Gas turbines, High density

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE