Microcrack orientation in porous aluminum titanate
作者： G. Bruno , A.M. Efremov , B.R. Wheaton , J.E. Webb
DOI: 10.1016/J.ACTAMAT.2010.08.027
关键词:
摘要: Microcracking of porous stabilized aluminum titanate (AT) was investigated by a combination models and experiments. The strong hypothesis that the b-axis is completely disconnected from surrounding material needed in order for integrity factor model to reproduce macroscopic thermal expansion AT. Electron backscattering situ neutron diffraction compressive tests validated this hypothesis. While predicts microscopic-scale residual stresses are locked into after firing (compressive along negative crystal axis tensile other two positive axes), provides evidence stress. Indeed, some deformation mechanisms proposed explain apparent anomalous behavior AT under compression. Those make combined use experimental observations theoretical predictions.
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