期刊
SCRIPTA MATERIALIA
卷 64, 期 8, 页码 765-768出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2010.12.045
关键词
MAX phases; Nb4AlC3; Shell-like ceramic; Mechanical properties
类别
资金
- JSPS of Japan [20350099]
- World Premier International Research Center (WPI) Initiative, MEXT, Japan
- Grants-in-Aid for Scientific Research [20350099] Funding Source: KAKEN
Textured nanolayered Nb4AlC3 ceramic possesses a shell-like microstructure configuration from the nanoscale to the milliscale. About 15 vol.% Nb-Al-O oxide particles formed in situ were homogeneously distributed in the Nb4AlC3 matrix. It has a high flexural strength of 1219.2 MPa perpendicular to the c-axis direction and a high fracture toughness of 17.9 MPa m(1/2) parallel to the c-axis direction. Also, this ceramic showed excellent machinability and could be easily machined by a high-speed steel cutter. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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