Accession Number : AD0619374

Title :   PRODUCTION ENGINEERING MEASURE FOR BERYLLIUM OXIDE AND PARTS PRODUCED FROM IMPORTED ORES.

Descriptive Note : Quarterly progress rept. no. 7, 1 Jan-31 Mar 65,

Corporate Author : BERYLLIUM CORP READING PA

Personal Author(s) : Blum,J. F. ; Lebo,H. F.

Report Date : 31 MAR 1965

Pagination or Media Count : 44

Abstract : Four uniform powder batches were prepared in the pilot plant using processes developed for this contract. The powder batches met all tentative specifications. A fabrication mix was prepared from each powder batch. The mixes met all chemical and physical property specifications. Test specimens were produced from each powder batch using pressing conditions, green densities, and firing schedules approximating conditions that will be employed to produce the final parts for the contract. The final specimen sizes and property measurements were as per MIL-I-10A requirements. Dielectric constant and loss factor values measured at one megacycle, met required specifications. Flexural strength values met required specifications. Thermal conductivity results at 100F and 280F were equal to or greater than proposed specifications set earlier for quality BeO ceramics. (Author)

Descriptors :   (*CERAMIC MATERIALS, ELECTRONIC EQUIPMENT), (*BERYLLIUM COMPOUNDS, OXIDES), (*ELECTRONIC EQUIPMENT, CERAMIC MATERIALS), (*POWDER METALLURGY, MECHANICAL WORKING), MANUFACTURING, SULFATES, HYDRATES, POWDERS, PARTICLE SIZE, DENSITY, SINTERING, ORES(METAL SOURCES), ELECTRICAL PROPERTIES, THERMAL CONDUCTIVITY, FRACTURE(MECHANICS), EXTRUSION

Distribution Statement : APPROVED FOR PUBLIC RELEASE