Abstract
The crack resistance (R-curve) of injection moulded Cr3C2/Al2O3 composite was studied using the indentation-strength-in-bending technique. The influence of heat treatment on the crack resistance was investigated. The oxidation layer containing alumina and alumina/chromia solid solution was in a compression of -179 and -195 MPa as evaluated by X-ray analysis and indentation method, respectively. The results were slightly different from the thermal mismatch calculation (-139 MPa). The relatively compressive, low porous oxidation layer caused significant increase in crack resistance. Crack healing could contribute also partially to crack resistance.
Original language | English |
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Pages (from-to) | 1477-1484 |
Number of pages | 8 |
Journal | Journal of the European Ceramic Society |
Volume | 23 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2003 Aug |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry