In Situ Synthesis and Properties of Ti 3 AlC 2 /TiB 2 Composites
- 6 September 2007
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 90 (11) , 3615-3620
Abstract
In order to improve the mechanical properties of Ti 3 AlC 2 , near‐fully dense Ti 3 AlC 2 /TiB 2 composites were synthesized using Ti, Al, graphite, and B 4 C powders as the initial materials. Compared with monolithic Ti 3 AlC 2 , the composites exhibit a much higher strength (for the compressive strength, from initial 723 MPa to maximal 2205 MPa; for flexural strength, from initial 340 MPa to maximal 861 MPa), and the strengthening effect can be held at least up to 1100°C. Moreover, besides the enhancement of the elastic modulus and hardness of Ti 3 AlC 2 , the introduction of a TiB 2 phase makes a positive contribution to its electrical conductivity.Keywords
This publication has 30 references indexed in Scilit:
- Strengthening of Ti3AlC2 by incorporation of Al2O3Scripta Materialia, 2004
- Mechanical properties and oxidation resistance of Ti3SiC2/SiC composite synthesized by in situ displacement reaction of Si and TiCMaterials Letters, 2003
- Effect of Composition on Properties of Alumina/Titanium Silicon Carbide CompositesJournal of the American Ceramic Society, 2002
- Effect of Al2O3 on mechanical properties of Ti3SiC2/Al2O3 compositeCeramics International, 2002
- An Improved Long Life Duration CMC for Jet Aircraft Engine Applications2001
- Reaction synthesis of TiB2–TiC composites with enhanced toughnessActa Materialia, 2001
- Synthesis and Characterization of Ti 3 AlC 2Journal of the American Ceramic Society, 2000
- Electrical Resistivity of Titanium Diboride and Zirconium DiborideJournal of the American Ceramic Society, 1995
- Transient Plastic Phase Processing of Titanium–Boron–Carbon CompositesJournal of the American Ceramic Society, 1993
- A new computer program for Rietveld analysis of X-ray powder diffraction patternsJournal of Applied Crystallography, 1981