Аномалии упругих и неупругих свойств наногранулированных композиционных материалов Co-=SUB=-x-=/SUB=-(CaF-=SUB=-2-=/SUB=-)-=SUB=-100-x-=/SUB=-
Keyword(s):
Ion Beam
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AbstractElastic ( G ) and inelastic ( Q ^–1) properties of the Co_ x (CaF_2)_100 –_ x ( x = 41–84 at %) nanocomposites fabricated with the aid of ion-beam sputtering are studied in a temperature interval of 170–750 K. Maximum internal friction related to hopping of Co atoms inside metal granules is revealed at a temperature of 227 K. It is shown that the maxima increase with increasing concentration of metal phase. A noticeable increase in dependence Q ^–1( T ) at a temperature of greater than 675 K is caused by diffusion of vacancies in the Co granules under geometrical confinements.
1973 ◽
Vol 31
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pp. 122-123
1993 ◽
Vol 51
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pp. 1036-1037