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Compression and Compressibility Studies of Plutonium and a Plutonium-Gallium Alloy*

Published online by Cambridge University Press:  06 March 2019

R. B. Roof*
Affiliation:
Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87545
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Extract

Two metal foils, one pure plutonium and the other being a solid solution of 6.5 a/o gallium In plutonium, were examined, in-situ, by X-ray diffraction techniques while under pressure. The purpose was to determine the compression and compressibility of these materials as a function of pressure and to identify the products of any transformation that may occur due to the action of applied pressures.

Type
Research Article
Copyright
Copyright © International Centre for Diffraction Data 1980

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Footnotes

*

Work performed under the auspices of the Department of Energy.

References

1. Bassett, W. A., Takahashi, T., and Stook, P. M., “X-ray Diffraction and Optical Observations on Crystalline Solids up to 300 kbar”, Revo Sci, Instruments, 38:37 (1967).CrossRefGoogle Scholar
2. Olinger, B. W. and Cady, H. H., “The Hydrostatic Compression of Explosives and Detonation Products, to 10 GPa (100 kbar) and Their Calculated Shock Compression; Results for PETN, TATB, CO2 and H2O,” Jin: Sixth Symposium (International) on Detonation, Office of Naval Research Report No. ACR-221, (1978).Google Scholar
3. This work was performed by Group M-5, LASL, D. Janney group leader, A two-dimensional digitizing microdensitometer extracts data from the diffraction film for computer enhancement, The enhancement algorithim may make several sequential passes through the datao Diffraction lines which are initially very faint may then display high contrast. While position data are preserved, some intensity data are lost during the enhancemerit, A positional scale is also synthesized in the computer and added to the image as a measurement aid.Google Scholar
4. Senoo, M., Mil, H., Fujishiro, I., Fujikawa, T., “Precise Measurement of Lattice Compression of Al, Si, and Sl-Si Alloy by High Pressure Diffractometry”, Jap. J. of App., Physics, 15:871 (1961).CrossRefGoogle Scholar
5. Vogel, R. E. and Kempter, C. P., “A Mathematical Technique for the Precision Determination of Lattice Parameters”, Acta Crys, 14:1130 (1961).CrossRefGoogle Scholar
6. Zachariasen, W. H. and Ellinger, F. H., “The Crystal Structure of Alpha Plutonium Metal”, Acta Cryst. 16:777 (1963).CrossRefGoogle Scholar
7. Ellinger, F. H., Land, C. C., Struebing, V. O., “The Plutonium- Gallium System”, J. Nuc, Mat. 12:226 (1964).CrossRefGoogle Scholar
8. Elliott, R. O., Tate, R. E., Roof, R. B., “Lattice Expansion in Dilute alpha-Pu(Ga) and alpha-Pu(Al) Metastable Alloys”, LA-6922 (1977)Google Scholar
9. Olinger, B. and Halleck, P. M., “Compression and Bonding of Ice VII and an Emperical Linear Expression for the Isothermal Compression in Solid's”, J. Chem. Phys. 62:94 (1975).CrossRefGoogle Scholar
10. Cottrel, A. H., “The Mechanical Properties of Matter”, John Wiley & Sons, New York (1964), pg. 160, eqs. (6.9) & (6.10).Google Scholar
11. Laquer, H. L., “Sound-Velocity Measurements on Alpha-phase Plutonium”, in: “The Metal Plutonium”, Coffinberry, A. S. and Miner, W. N., Eds., University of Chicago Press, Chicago (1961), pg. 157.Google Scholar
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