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Mechanical behavior of ceramics and glass under local loading of specimens by an indentor is studied experimentally by a proposed test procedure. The effect of scratching on fracture resistance is assessed by comparing the test results obtained by two methods – edge fracture under scratching (S+EF method) and without scratching (EF method). Based on the analysis of experimental findings, the fracture...
Fracture resistance of technical quartz and normal window glasses was investigated in testing polished rectangular parallelepipeds by edge flaking their long edges with Rockwell and Vickers indenters (EF method) and by scratching the specimen surface with a Rockwell indenter followed by flaking its edge (S+EF method). It was established that the fracture of those glass specimens in their edge flaking...
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