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http://hdl.handle.net/10397/4223
| Title: | Dislocation jumping over the sound barrier in tungsten | Authors: | Li, Q Shi, SQ |
Issue Date: | 29-Apr-2002 | Source: | Applied physics letters, 29 Apr, 2002, v. 80, no. 17, p. 3069-3071 | Abstract: | It is commonly believed that dislocations cannot surmount the sound barrier at the shear wave velocity. This letter presents results of molecular dynamics simulation showing the contrary, namely that a stationary dislocation can be accelerated above the sound barrier provided that the theoretical shear strength is reached at the dislocation core and the total energy of a subsonic perfect dislocation is sufficiently high to cause its dissociation into transonic partial dislocations. | Keywords: | Dislocation motion Tungsten Molecular dynamics method |
Publisher: | American Institute of Physics | Journal: | Applied physics letters | ISSN: | 0003-6951 | EISSN: | 1077-3118 | DOI: | 10.1063/1.1473865 | Rights: | © 2002 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Q. Li & S-Q Shi, Appl. Phys. Lett. 80, 3069 (2002) and may be found at http://apl.aip.org/resource/1/applab/v80/i17/p3069_s1 |
| Appears in Collections: | Journal/Magazine Article |
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| Li_Sound_Barrier_Tungsten.pdf | 246.35 kB | Adobe PDF | View/Open |
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