Accession Number : AD0709620

Title :   DEVELOPMENT AND EVALUATION OF HOT ISOSTATICALLY COMPACTED BORON NITRIDE.

Descriptive Note : Final rept. 20 Jan 69-15 Apr 70,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO COLUMBUS LABS

Personal Author(s) : Brockway,M. C. ; Niesz,Dale E.

Report Date : JUL 1970

Pagination or Media Count : 30

Abstract : The report discusses the development of hot-isostatic-compaction forming of BN which was initated in a prior study. Primary emphasis in the current program was on maximizing BN purity and therby minimizing its electrical loss. The experimental work also included limited study of the variation of BN properties with HIC process parameters. The uniqueness of the HIC process for forming BN is its relative freedom from shape limitations, its ability to yield a combination of high density, strength, and thermal conductivity combined with excellent electrical properties and only modest anisotropy. (Author)

Descriptors :   (*BORON COMPOUNDS, *COMPACTING), (*NITRIDES, COMPACTING), MANUFACTURING, MICROSTRUCTURE, ELECTRICAL PROPERTIES, MECHANICAL PROPERTIES

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE