Paper Title:
A Soft Ceramic Ti3SiC2 with Microscale Plasticity at Room Temperature
  Abstract

Microscale plasticity of Ti3SiC2 was investigated by Vickers hardness indentation. The surface layer of the hardness indentations was removed by acid solution to observe microstructure beneath the indentations, where a large number of bending, delamination and kinking grains were found. These features suggest that Ti3SiC2 is able to consume microdamage around the indentations. Numerous basal plane dislocations and stacking faults lying in Ti3SiC2 grains or accumulating at grain boundaries were observed. The basal plane dislocations play an important role in the microscale plastic deformation. The plasticity and damage tolerance for Ti3SiC2 at room temperature should be attributed to multiple energy absorbing mechanisms: grains bending, delamination, kink-band formation, and the basal plane slip, etc.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
1343-1346
DOI
10.4028/www.scientific.net/KEM.280-283.1343
Citation
S. B. Li, H. X. Zhai, "A Soft Ceramic Ti3SiC2 with Microscale Plasticity at Room Temperature", Key Engineering Materials, Vols. 280-283, pp. 1343-1346, 2005
Online since
February 2007
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Price
$32.00
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