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首页> 外文会议>Mechanical properties and performance of engineering ceramics and composites IX >A NEW ANALYSIS OF THE EDGE CHIPPING RESISTANCE OF BRITTLE MATERIALS
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A NEW ANALYSIS OF THE EDGE CHIPPING RESISTANCE OF BRITTLE MATERIALS

机译：脆性材料的边缘抗切削性的新分析

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Edge chipping is a common problem with ceramics used for dental restorations, consumer wares, substrates and wafers, and advanced ceramic structural applications. Concentrated contact forces applied near an edge can cause a flake to pop off. A method to quantify edge chipping resistance was developed National Physical Laboratory in the United Kingdom and applied to hard metal cutting tools, technical ceramics, and glasses. Early analyses emphasized a simple linear relationship between force and the distance away from the edge, but more extensive recent testing has revealed nonlinear trends. In this presentation, a new model for edge chipping resistance is presented that is based on energy balances between indenter work, material deformation and fracture.
机译：对于用于牙齿修复物，消费品，基底和晶片以及高级陶瓷结构应用的陶瓷来说，边缘崩裂是一个普遍的问题。在边缘附近施加集中的接触力会导致剥落薄片。英国国家物理实验室开发了一种量化抗边缘崩裂性的方法，并将其应用于硬质金属切削刀具，工业陶瓷和玻璃。早期分析强调力与距边缘的距离之间的简单线性关系，但最近进行的更广泛的测试揭示了非线性趋势。在本演示中，基于压头功，材料变形和断裂之间的能量平衡，提出了一种新的边缘抗裂性模型。

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