Determination of Residual Stress Gradients in Al2O3 Ceramics after Thermal and Mechanical Loading

T. Erbacher; Michael Ott; Tilmann Beck; Otmar Vöhringer

doi:10.4028/www.scientific.net/MSF.490-491.485

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HomeMaterials Science ForumMaterials Science Forum Vols. 490-491Determination of Residual Stress Gradients in...

Determination of Residual Stress Gradients in Al₂O₃ Ceramics after Thermal and Mechanical Loading

Abstract:

Al2O3 ceramic plates of diameter 166 mm and thickness 5 mm were subjected to frictional loading regimes. The resultant residual stress effect in the material was analyzed using the sin2y and AP methods based on a modified measurement condition for the pole angle y and the azimuth angle F on a 4 cycle goniometer. Furthermore, the frictional loading of the Al2O3 plates lead to clear differences in the residual stress state near the surface. An underlying correlation was observed between the residual stress state of the Al2O3 material and its residual strength with this effect being ascribed to the magnitude of frictional load applied.

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Materials Science Forum (Volumes 490-491)

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485-490

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https://doi.org/10.4028/www.scientific.net/MSF.490-491.485

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Online since:

July 2005

Authors:

T. Erbacher, Michael Ott, Tilmann Beck, Otmar Vöhringer

Keywords:

Alumina Ceramic, Grazing Incidence, Residual Stress Gradients, Synchrotron Radiation (XRD)

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