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Author Bridgman, P. W.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher American Institute of Physics (AIP)
Language English
Subject Keyword NUCLEAR FUEL CYCLE AND FUEL MATERIALS ♦ MATERIALS TESTING ♦ MEASURED VALUES ♦ PLUTONIUM ♦ PRESSURE ♦ SPECIFIC HEAT ♦ TEMPERATURE ♦ THERMODYNAMICS ♦ VOLUME
Abstract Recent lifting of the security restrictions now permits publication of measurements of various effects of pressure on plutonium made during the war. Compressions on the alpha phase were measured at room temperature to 40,000 kg/cm<sup>2</sup> one apparatus and to 100,000 in another. The total volume compression under 100.000 is very chose to 10%. Compressibility decreases with increasing pressure as is normal. Exploration for other transitions was made to 20,000 kg/ cm<sup>2</sup> at 100 deg and 200 deg -none were found. The pressure and the volume change of the alpha-beta transition was measured 162.6 deg and 205 deg . The transition curve is''normal,'' the pressure rising with increasing temperature with downward curvature. and volume increment decreasing. The volume increment averages nearly- 9%. The pressure of transition at 205 deg is very approximately 7000 kg/cm<sup>2</sup>. The calculated latent heat or transition at the mean pressure is roughly 4.5 cal/g.
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 1959-01-01
Publisher Department Harvard Univ., Cambridge, Mass.
Journal Journal of Applied Physics
Volume Number 30
Issue Number 2
Organization Harvard Univ., Cambridge, Mass.


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