Intrinsic response of crystals to pure dilatation

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The response of an f.c.c. lattice with Lennard-Jones interaction under symmetric lattice extension has been studied by Monte Carlo simulation at several temperatures. The critical strain at which the crystal undergoes a structural change is found to be well predicted by the mechanical stability limit expressed in terms of either the elastic constants or the bulk modulus. At low temperature (reduced temperature T = 0.125), lattice decohesion is observed in the form of cleavage fracture, whereas at higher temperature (T = 0.3) the strained system deforms by cavitation with some degree of local plasticity. At still higher temperature (T = ... continued below

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Pages: (33 p)

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Wang, Jinghan; Yip, S. (Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Nuclear Engineering); Phillpot, S. & Wolf, D. (Argonne National Lab., IL (United States)) January 1, 1991.

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The response of an f.c.c. lattice with Lennard-Jones interaction under symmetric lattice extension has been studied by Monte Carlo simulation at several temperatures. The critical strain at which the crystal undergoes a structural change is found to be well predicted by the mechanical stability limit expressed in terms of either the elastic constants or the bulk modulus. At low temperature (reduced temperature T = 0.125), lattice decohesion is observed in the form of cleavage fracture, whereas at higher temperature (T = 0.3) the strained system deforms by cavitation with some degree of local plasticity. At still higher temperature (T = 0.5) the lattice undergoes homogeneous disordering with all the attendant characteristics of melting.

Physical Description

Pages: (33 p)

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OSTI; NTIS; GPO Dep.

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  • Fall meeting of the Minerals, Metals and Materials Society of AIME and Materials Week of the American Society of Metals, Cincinnati, OH (United States), 20-24 Oct 1991

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  • Other: DE92016780
  • Report No.: ANL/CP-76452
  • Report No.: CONF-911003--27
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5072723
  • Archival Resource Key: ark:/67531/metadc1052081

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  • January 1, 1991

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  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 30, 2018, 1:09 p.m.

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Wang, Jinghan; Yip, S. (Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Nuclear Engineering); Phillpot, S. & Wolf, D. (Argonne National Lab., IL (United States)). Intrinsic response of crystals to pure dilatation, article, January 1, 1991; Illinois. (digital.library.unt.edu/ark:/67531/metadc1052081/: accessed November 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.