Effects of Grain Size and Microcracking on the Thermal Diffusivity of MgTi2O5
作者： H. J. SIEBENECK , D. P. H. HASSELMAN , J. J. CLEVELAND , R. C. BRADT
DOI: 10.1111/J.1151-2916.1977.TB15555.X
关键词:
摘要: The laser flash technique was used to study the effect of grain size on thermal diffusivity polycrystalline MgTi2O5 from 25° 800°C. Microcracking decreased by as much a factor two with decrease increasing size. When specimens were heated then cooled, exhibited horizontal flat figure-eight hysteresis. This hysteresis, which appeared be function history, attributed balance between crack healing, or closure, at high temperatures and growth existing cracks formation new during cooling.
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