September 2016

Journal

Elastic moduli changes due to machining in porous microcracked cordierite

By:
Cooper, Ryan C; Bruno, Giovanni; Lange, A; Onel, Yener; Shyam, Amit ; Watkins, Thomas R
Journal Name:
Journal of Materials Science
Page Number:
9749-9760
Volume:
51
Issue Number:
21
Publication Date:
September 13, 2016
View DOI Listing:
https://doi.org/10.1007/s10853-016-0209-9

Abstract

Microstructural changes in porous cordierite caused by machining were characterized using microtensile testing, X-ray computed tomography and scanning electron microscopy. Young’s moduli and Poisson’s ratios were determined on ~215-380 um thick machined samples by combining digital image correlation and microtensile loading. The results provide evidence for an increase in microcrack density due to machining of the thin samples extracted from diesel particulate filter honeycombs.