Paper Title:
Mapping of Phase Compositions and Air-Oxidized Titanium Silicon Carbide (Ti3SiC2)
  Abstract

Ternary carbides such as Ti3AlC2 and Ti3SiC2 are nano-layered ceramics with the general formula Mn+1AXn (n=1-3), where M is an early transition metal, A is a group A element, and X is either carbon and/or nitrogen. These ceramics exhibit a unique combination of mechanical, electrical, thermal and physical properties such as good high-temperature strength, and excellent corrosion and damage resistance. For instance, the electrical and thermal conductivities of Ti3SiC2 are greater than that of titanium and its machinability is similar to graphite. However, these ceramics are susceptible to thermal dissociation at ~1400°C in inert environments (e.g., vacuum or argon) to form TiC and Ti5Si3C. The chemistry and kinetics of the dissociation processes involved are not yet fully understood. Surprisingly, the study of thermal stability in ternary carbides has received relatively little attention despite its importance in applications such as heating elements or the feasibility of designing functionally-graded Ti3SiC2-TiC with unique wear resistance and damage tolerance. In this paper, we present the thermochemical processes, phase relations and air-oxidised of Ti3SiC2 from 25-1500°C as revealed by neutron diffraction (ND), secondary-ions mass spectroscopy (SIMS).

  Info
Periodical
Advanced Materials Research (Volumes 146-147)
Edited by
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Pages
1870-1873
DOI
10.4028/www.scientific.net/AMR.146-147.1870
Citation
Z. Oo, J. Low, B. O’Connor, "Mapping of Phase Compositions and Air-Oxidized Titanium Silicon Carbide (Ti3SiC2)", Advanced Materials Research, Vols. 146-147, pp. 1870-1873, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Christophe Issartel, Henri Buscail, Eric Caudron, Régis Cueff, Frédéric Riffard, S. El Messki, N. Karimi, Laurent Antoni
69
Authors: Dong Bok Lee, Seung Wan Woo
Abstract:New ceramic composites that consist of the amorphous SiOC matrix having dispersoids of Mo4.8Si3C0.6 and some MoSi2 were synthesized, and...
165
Authors: Eric Caudron, Régis Cueff, Christophe Issartel, N. Karimi, Frédéric Riffard, Sébastien Perrier, Henri Buscail
Abstract:Manganese addition and subsequent yttrium implantation effects on extra low carbon steel were studied by Rutherford Backscattering...
897
Authors: Biao Zhou, Feng Jin, Qun Luo, Qian Li, Kuo Chih Chou
Chapter 13: Surface Engineering/Coatings
Abstract:The high temperature oxidation and microstructure evolution of 55%Al-Zn-Si coated sheets were studied by scanning electron microscopy (SEM)...
1998
Authors: Hasan Zuhudi Abdullah, Pramod Koshy, Charles Christopher Sorrell
Abstract:Sodium titanate gels have been formed on the surface of titanium metal using sodium hydroxide solution and then oxidised at 400° - 800°C. The...
122