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In-situ Local Stress Measurement near Notch Tip in Alumina Ceramics Using Synchrotron Radiation Source
Journal of the Society of Materials Science Japan
In order to measure loading and residual stresses near the notch tip in Al2O3 ceramics using a micro X-ray beam of SPring 8 (super Photon ring-8GeV), X-ray elastic constants were first determined experimentally. Mechanical elastic constants of the used material were E=372 GPa and v=0.23. The diffraction from Al203 2.0.14 plane by 8keV radiunder a four-point bending load were measured across the minimum ligament of SEVNB (Single-Edge-V-notched Beam) specimen by scanning the micro X-ray beamdoi:10.2472/jsms.52.1225 fatcat:qkin7wvi2jdtnhz4t6vxpuh6jy