Evaluation of bonding strength between yttria coating and vanadium alloys for development of self-cooled blanket

被引：5

作者：

Akamatsu, Hitoshi ^{[1
]}

Satou, Manabu ^{[1
]}

Sato, Takashi ^{[1
]}

Jain, Amit ^{[2
]}

Gupta, Vijay ^{[2
]}

Hasegawa, Akira ^{[1
]}

机构：

[1] Tohoku Univ, Dept Quantum Sci & Energy Engn, Sendai, Miyagi 9808579, Japan

[2] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2011年 / 417卷 / 1-3期

关键词：

D O I：

10.1016/j.jnucmat.2011.03.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A laser spallation technique was utilized for measurement of the bonding strength between yttria coating and vanadium alloys. The bonding strength between the alloys containing small amounts of yttrium made by levitation melting method and the yttria coating prepared by vacuum plasma-spray was evaluated to be about 950 MPa. It was not clearly observed the effects of alloying elements on the bonding strength. The strength varied about 100 MPa by specimens and by alloy compositions. Detailed observation of the failure type at the interface indicated that crack formation in the coating reduced the stress at the interface, so that the evaluation might be overestimated. It was demonstrated that application of the laser spallation technique to measure the bonding strength between ceramics coating and base material was useful for the evaluation of mechanical integrity of the coating. (C) 2011 Published by Elsevier B.V.

引用

页码：1253 / 1256

页数：4

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