Effect of helium irradiation on Ti3AlC2 at 500 °C

被引：53

作者：

Patel, Maulik K. ^{[1
]}

Tallman, Darin J. ^{[3
]}

Valdez, James A. ^{[2
]}

Aguiar, Jeffery ^{[2
]}

Anderoglu, Osman ^{[2
]}

Tang, Ming ^{[2
]}

Griggs, Justin ^{[3
]}

Fu, Engang ^{[2
]}

Wang, Yongqiang ^{[2
]}

Barsoum, Michel W. ^{[3
]}

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[2] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA

[3] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

SCRIPTA MATERIALIA | 2014年 / 77卷

关键词：

MAX-phase; He accumulation; XRD; Radiation damage; Ion irradiation; HEAVY-IONS; TI3SIC2; DAMAGE; TEMPERATURE; RADIATION; TOLERANCE;

D O I：

10.1016/j.scriptamat.2013.12.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report herein, for the first time, the effects of high-fluence (2 x 10(17) ions cm(-2); 14 at.%) helium irradiation of polycrystalline Ti3AlC2 samples at 500 degrees C. X-ray diffraction (XRD) confirmed that, despite swelling along the c-axis and shrinkage along the a-axis, the basic building blocks, viz. the Ti3C2 layers, remained intact after irradiation. The XRD results also suggest that He implantation disorders the Al layers. Despite the high dose at 500 degrees C, He bubbles are present and are less than 1 nm in diameter. This is an important finding if this material is to be used in light water or other fission reactors in the future. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1 / 4

页数：4

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