Author:
Zhu Ping,Zhang Qiang,Xia Yixiao,Sun Kai,Lin Xiu,Gou Huasong,Shil’ko Serge,Wu Gaohui
Abstract
The stability of diamond/aluminum composite is of significant importance for its extensive application. In this paper, the interface of diamond/aluminum composite was modified by adding nanoscale W coating on diamond surface. We evaluated the corrosion rate of nanoscale W-coated and uncoated diamond/aluminum composite by a full immersion test and polarization curve test and clarified the corrosion products and corrosion mechanism of the composite. The introduction of W nanoscale coating effectively reduces the corrosion rate of the diamond/aluminum composite. After corrosion, the bending strength and thermal conductivity of the nanoscale W-coated diamond/aluminum composite are considerably higher than those of the uncoated diamond/aluminum composite. The corrosion loss of the material is mainly related to the hydrolysis of the interface product Al4C3, accompanied by the corrosion of the matrix aluminum. Our work provides guidance for improving the life of electronic devices in corrosive environments.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Heilongjiang Provincial Science Fund for Distinguished Young Scholars
Belarusian Republican Foundation for Fundamental Research
Subject
General Materials Science,General Chemical Engineering
Cited by
2 articles.
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