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Machinable and mechanical properties of sintered Al2O3-Ti3SiC2 composites.
- Source :
-
Journal of Materials Science . May2004, Vol. 39 Issue 9, p3137-3140. 4p. - Publication Year :
- 2004
-
Abstract
- Two-phase composites consisting of (1 - x) Al2O3 and xTi3SiC2 (x=0-1) were prepared by spark plasma sintering (SPS). Sintered densities larger than 98% of theoretical density were achieved when the specimens were sintered at 1300°C for 5 mm (in vacuum, at pressure 30 MPa). When content of Ti3SiC2 increased up to 30 wt%, composites were found to be machinable—they could be drilled easily using conventional Fe-Mo-W drills or gravers. The mechanical properties of the (1 - x) Al2O3-xTi3SiC2 composites were evaluated. The bending strength, Vickers hardness of the specimens had the following ranges: 428 ± 10.2 (x = 0) to 673 ± 15.4 Mpa (x = 1) (bending strength at room temperature); 19.9 (x = 0) to 4.0 GPa (x = 1) (Vickers hardness). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 39
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 15103317
- Full Text :
- https://doi.org/10.1023/B:JMSC.0000025843.83195.3b