Ceramic Grindability Evaluation with PCA Method

Ai Bing Yu; Yao Chen; Da Wei Jia; Xin Li Tian

doi:10.4028/www.scientific.net/KEM.329.421

Paper Titles

Numerical Simulation and Prediction of Surface Heterogeneity in Diamond Turning of Single-Crystalline Germanium
p.397

A Finite Element Analysis of Stress Fields in Vickers Indentation on Brittle Materials
p.403

Critical Cutting Condition for Brittle-Ductile Transition of KDP Crystals in Ultra-Precision Machining
p.409

Nano-Structures Fabrication by Laser Combined with Near-Field Scanning Optical Microscopy
p.415

Ceramic Grindability Evaluation with PCA Method
p.421

Analysis of Mechanical Property of Crystal KDP and Simulation of Ultra-Precision Cutting Process in the Ductile Mode
p.427

Experimental Investigation of Brittle to Ductile Transition of Single Crystal Silicon by Single Grain Grinding
p.433

A New Complex Grinding Method for Ceramic Materials Combined with Ultrasonic Vibration and Electrodischarge Machining
p.439

Experimental Research on Surface Integrity of Ceramic Nanocomposites in Two-Dimensional Ultrasonic Vibration Grinding
p.445

HomeKey Engineering MaterialsKey Engineering Materials Vol. 329Ceramic Grindability Evaluation with PCA Method

Ceramic Grindability Evaluation with PCA Method

Abstract:

Mathematical evaluation model for ceramic grindability was presented based on principal components analysis (PCA) method. Sample matrix was constituted with influence factors of ceramic grindability. Principal components and weight vectors were determined through calculation of eigenvalues and eigenvectors of correlation matrix, which was deduced from sample matrix. Comprehensive values could be obtained through eigenvectors and weights vectors. Seven ceramics were selected as evaluation example. Material property parameters including hardness, fracture toughness, Young’s modulus and bending strength were selected as influence factors of ceramic grindability.According to the comprehensive evaluation values, grindability rank of seven materials from 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 reference for other comprehensive evaluation methods. Research results suggest that PCA is a reasonable and available method to determine the rank of ceramic grindability.