ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Mathematical evaluation model for ceramic grindability was presented based on principalcomponents analysis (PCA) method. Sample matrix was constituted with influence factors ofceramic grindability. Principal components and weight vectors were determined through calculationof eigenvalues and eigenvectors of correlation matrix, which was deduced from sample matrix.Comprehensive values could be obtained through eigenvectors and weights vectors. Seven ceramicswere selected as evaluation example. Material property parameters including hardness, fracturetoughness, Young’s modulus and bending strength were selected as influence factors of ceramicgrindability.[removed info]According to the comprehensive evaluation values, grindability rank of seven materialsfrom better to worse was B4C, sintering SiC, high-purity Al2O3, hot-pressed SiC, sintering Si3N4,hot-pressed Si3N4 and Y-TZP. Moreover, the determination of weight vectors could offer referencefor other comprehensive evaluation methods. Research results suggest that PCA is a reasonable andavailable method to determine the rank of ceramic grindability
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.329.421.pdf
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