Explosive compaction of clad graphite powders and obtaining of coatings on their base.

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In order to consolidate graphite based powders and in order to obtain coatings with density values near to the theoretical ones clad graphite powders of the C{sub graphite} - Ni (C, - Ni) compositions were explosively compacted under different loading conditions. Theoretical calculations revealed that for assessing the stressdeformed state of C, - Ni compositions and computing the normal and tangent stress components (when VD < C{sub longitudinal} V{sub D} < C{sub transversal})it is recommended to apply the dynamic problem's solution model while the pressure impulse P = f (x) is being uniformly spread with constant rate along the boundary ... continued below

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10 p.

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Peikrishvili, A. B. (Akaki B.); Japaridze, L. A. (Levan A.); Marquis, F. D. S. (Fernand D. S.); Staudhammer, Karl P.; Chikhradze, N. M. (Nikoloz M.); Gobejishvili, T. G. (Tamaz G.) et al. January 1, 2001.

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Description

In order to consolidate graphite based powders and in order to obtain coatings with density values near to the theoretical ones clad graphite powders of the C{sub graphite} - Ni (C, - Ni) compositions were explosively compacted under different loading conditions. Theoretical calculations revealed that for assessing the stressdeformed state of C, - Ni compositions and computing the normal and tangent stress components (when VD < C{sub longitudinal} V{sub D} < C{sub transversal})it is recommended to apply the dynamic problem's solution model while the pressure impulse P = f (x) is being uniformly spread with constant rate along the boundary of a semi-infinite elastic body. The results of our experiments showed that it is possible to obtain high dense coatings from C{sub g} - Ni compositions bonded by an inteimediate layer to the substrate material. The structure and properties of the coatings depends on the intensity of the shock loading and temperature. The effect of the shock loading conditions (temperature, loading intensity) on the structure, properties and structure/properties relationships for the C{sub g} -Ni coatings are discussed.

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10 p.

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  • Submitted to: EXPLOMET 2000, International Conference Fundamental Issues and Applications of Shock - Wave and High-Strain-Rate Phenomena, Albuquerque, NM, June 2000

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  • Report No.: LA-UR-01-5098
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975744
  • Archival Resource Key: ark:/67531/metadc931209

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 11:31 p.m.

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Peikrishvili, A. B. (Akaki B.); Japaridze, L. A. (Levan A.); Marquis, F. D. S. (Fernand D. S.); Staudhammer, Karl P.; Chikhradze, N. M. (Nikoloz M.); Gobejishvili, T. G. (Tamaz G.) et al. Explosive compaction of clad graphite powders and obtaining of coatings on their base., article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc931209/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.