Lifetime Prediction and Reliability Evaluation of Si<suB>3</suB>N<suB>4</suB> Ceramic

Chin. Phys. Lett.

1998, Vol. 15

Issue (6): 441-443 DOI:

Original Articles

Lifetime Prediction and Reliability Evaluation of Si₃N₄ Ceramic

ZONG Xiang-fu;WANG Xu;WENG Yu-min

Institute of Materials Science, Fudan University, Shanghai 200433

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ZONG Xiang-fu, WANG Xu, WENG Yu-min 1998 Chin. Phys. Lett. 15 441-443

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Abstract In this study, non-equilibrium statistical physics is used to estimate the time-dependent fracture of inhomogeneous Si₃N₄ ceramic. The effects of structural inhomogeneity on mechanical properties of the Si₃N₄ ceramic are discussed. The numerical calculations show that the average lifetime will increase by means of introducing suitable inhomogeneity in materials, but it is not monotonous.

Keywords: 62.20.Mk 81.40.Np

Published: 01 June 1998

PACS:	62.20.Mk
	81.40.Np	(Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1998/V15/I6/0441

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