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Shock Compaction of Molybdenum Powder

Ahrens, Thomas J. and Kostka, D. and Vreeland, T., Jr. and Schwarz, R. B. and Kasiraj, P. (1983) Shock Compaction of Molybdenum Powder. In: Shock waves in condensed matter. Elsevier , Amsterdam, pp. 443-446. ISBN 9780444869043.

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Incident shocks varying from 9 to 12 GPa and 2 µs duration, impinging on porous pure Mo (100 µm) powder of distension 1.4, are found to produce compacts of at least 99.4% of crystal density. Although recovered samples are consolidated and exhibit diamond pyramid hardness of ~330 to 400, the particles do not appear to be well bonded. Among several possible models for producing a melt layer on particles vie propose a dynamic frictional model. The shock pressures required to produce a ~1 µm film of molten material as a result of dynamic friction varies from 11 to 108 GPa for grain sizes of 100 to 10 µm.

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Additional Information:© 1984 Elsevier Science Publishers B. V. Supported under NASA Grant NASW3752. R.B. Schwarz partially supported by D.O.E. P. Kasiraj, T. Vreeland, Jr., and D. Kostka are with the W. Keck Laboratory for Engineering Materials, Division of Engineering and Applied Science. T. J. Ahrens is with the Seismological Laboratory. Contribution 3944 Division of Geological and Planetary Sciences.
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Department of Energy (DOE)UNSPECIFIED
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Caltech Division of Geological and Planetary Sciences3944
Record Number:CaltechAUTHORS:20150123-091514139
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Official Citation:Thomas J. Ahrens, D. Kostka, T. Vreeland Jr., R.B. Schwarz and P. Kasiraj, Chapter X : 4 - SHOCK COMPACTION OF MOLYBDENUM POWDER, In Shock Waves in Condensed Matter 1983, edited by J.R. ASAY, R.A. GRAHAM and G.K. STRAUB, Elsevier, Amsterdam, 1984, Pages 443-446, ISBN 9780444869043, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54010
Deposited By: Tony Diaz
Deposited On:23 Jan 2015 18:13
Last Modified:10 Nov 2021 20:26

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