Article ID Journal Published Year Pages File Type
10629582 Journal of the European Ceramic Society 2015 5 Pages PDF
Abstract
The determination of the fracture toughness in a well characterized gas pressure sintered silicon nitride by the single edge V-notch beam method is analyzed in specimens with a surface shallow sharp notch produced by ultra-short pulsed laser ablation. The fracture surfaces and the damage in front of the notch tip are analyzed in detail by using focus ion beam/scanning electron microscopy and micro-Raman spectroscopy. It is concluded that the fracture toughness can be successfully determined by this technique and its importance for nano-grain size ceramics is outlined.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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