کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
702867 891117 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the defect morphology on the strength of diamond particles
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Influence of the defect morphology on the strength of diamond particles
چکیده انگلیسی

The influence of particle size and microstructural defect morphology on the strength of diamond powders HPHT, synthesized in a high-pressure anvil device with central concavity, has been studied. The strength was calculated as the breaking load obtained in single grit tests divided by the mesh opening area corresponding to the intervals of particle size classification. The strength values were associated with eight distinct groups of microscopic defect morphology, in which a power law relating the diamond strength to its particle size has been experimentally established. This law was found to apply to other data reported in the literature. For each value of strength, a crack length was derived from the Griffith equation and a rationale has been proposed to justify the eight morphological groups in terms of corresponding defect length. A scanning electron microscopy analysis corroborated this theoretical proposal.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 16, Issue 9, September 2007, Pages 1752–1759
نویسندگان
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