Accession Number : AD0694852

Title :   TENSOMETRIC METHOD OF MEASURING THE COMPRESSIBILITY OF METALS UP TO 2.5.109 N/m2 (25,000 bar),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kutsar,A. R.

Report Date : 21 APR 1969

Pagination or Media Count : 8

Abstract : A strain gage method developed for measuring the isothermal compressibility of metals up to 25,000 bars is described. The coefficient of compressibility was determined from the change of volume with pressure. Since the coefficient of compressibility ranges in value, experimental measurements were difficult. Resistance strain gages were bonded to polycrystalline samples of aluminum, titanium, copper, nickel, and bismuth, and the samples were subjected to fluid pressure. A differential method was used to obtain the differences in volume as a function of pressure; iron was used as a standard. A formula for the changes in volume as a function of the change of length of the strain gage is given. Data are presented for all the metals for pressures ranging from 5000 to 25,000 bars at intervals of 5000 bars. (Author)

Descriptors :   (*METALS, COMPRESSIVE PROPERTIES), (*STRAIN GAGES, TEST METHODS), HIGH PRESSURE, ALUMINUM, TITANIUM, COPPER, NICKEL, BISMUTH, USSR

Subject Categories : Metallurgy and Metallography
      Test Facilities, Equipment and Methods
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE