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Fractographic Analysis of Machining Cracks in Silicon Nitride Rods and Bars

Published

Author(s)

George D. Quinn, L K. Ives, S Jahanmir, P Koshy

Abstract

A new fixture for flexural strength testing was used to evaluate the effects of machining on the flexural strength of a toughened sintered reaction-bonded silicon nitride. Different grinding procedures had various effects upon the flexure strength distributions. These effects were directly related to the size and severity of fractographically-measured machining cracks. Under certain conditions, grinding caused negligible damage and the specimens fractured from intrinsic material flaws.
Citation
Ceramic Transactions
Volume
122

Keywords

ceramics, flexure strength, fractobraphy, machining cracks, rods

Citation

Quinn, G. , Ives, L. , Jahanmir, S. and Koshy, P. (2001), Fractographic Analysis of Machining Cracks in Silicon Nitride Rods and Bars, Ceramic Transactions (Accessed June 25, 2024)

Issues

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Created October 1, 2001, Updated February 19, 2017