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 SM ISO690:2012ZHITARU, Raisa, RAHVALOV, Veaceslav. Relaxation processes under microindentation of InP crystals subjected to scratching deformation. In: Moldavian Journal of the Physical Sciences, 2006, nr. 3-4(5), pp. 298-303. ISSN 1810-648X. |
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| Moldavian Journal of the Physical Sciences | ||||||
| Numărul 3-4(5) / 2006 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
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| Pag. 298-303 | ||||||
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The elastic strain relaxation was estimated by the use of the method of acoustic emis-
sion signal registration under microindentation. The coefficient K for the estimation of relaxation degree under unloading was introduced. The preliminary strain degree of InP single
crystals and accordingly the internal stresses were varied by the scratching method as well as
by the testing temperature (293÷723 K) and storage of predeformed crystals at room temperature.
It was shown that the relaxation processes are determined by the stress defect structure
state and are the predeformation temperature function. These processes are tightly related to
the internal strain stress, characterizing the start state of InP single crystals. |
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