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Slow positron annihilation studies of vacancy-type defects in the near-surface region of Cu and Nb before and after wear |
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| Authors: | HD Gu TM Wang WJ Wang KM Leung CY Chung |
| Institution: | (1) Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong, HK;(2) Department of Materials Science, Lanzhou University, Lanzhou, Gansu, P.R. China, CN;(3) School of Science, Beijing University of Aeronautics & Astronautics, Beijing, P.R. China, CN |
| Abstract: | Received: 22 June 1998 / Accepted: 9 November 1998 |
| Keywords: | PACS: 78 70 Bj 61 72 Ji |
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