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首页> 外文期刊>Tribology International >Diamond particle shape: Its measurement and influence in abrasive wear
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Diamond particle shape: Its measurement and influence in abrasive wear

机译：金刚石颗粒形​​状：其测量和对磨料磨损的影响

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摘要

The classification of diamond particles in terms of their abrasive characteristics is addressed in this work. Specifically, diamond particles of different grades have been studied in terms of their shape to identify useful trends and correlations with experimental wear rate. Ten diamond types, typically used by the abrasives industry and exhibiting varied shape, were selected. They included highly geometric single crystals, crushed single crystals, and polycrystalline diamond particles, with nominal diameters of between 65 and 197 urn. Electronic boundary projections were obtained using a digital-camera-equipped optical microscope, which were then processed using proprietary software. The parameters calculated include: diameter (minimum, minor and maximum), aspect ratio, convexity and sharpness. Interesting correlations were found between convexity and sharpness that engendered both these parameters to be considered as useful measures of wear rate. This was reinforced by experimental wear tests, using grinding wheels manufactured from six of the 10 diamond types, which demonstrated excellent correlations of sharpness (0.991 correlation coefficient), and convexity (0.987 correlation coefficient), with the wear rate of a polyurethane workpiece.
机译：在这项工作中解决了根据金刚石颗粒的磨蚀特性分类。具体来说，已经研究了不同等级的金刚石颗粒的形状，以识别有用的趋势以及与实验磨损率的关系。选择了十种钻石类型，这些类型通常由磨料行业使用，并且呈现出不同的形状。它们包括高度几何形状的单晶，破碎的单晶和多晶金刚石颗粒，公称直径在65至197之间。电子边界投影是使用配备数码相机的光学显微镜获得的，然后使用专有软件进行处理。计算的参数包括：直径（最小，最小和最大），纵横比，凸度和清晰度。在凸度和清晰度之间发现了有趣的相关性，这些相关性使这两个参数被视为磨损率的有用度量。通过使用10种金刚石类型中的6种制造的砂轮进行实验磨损测试，可以证明其清晰度（0.991相关系数）和凸度（0.987相关系数）与聚氨酯工件的磨损率具有极好的相关性。

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