Effect of Nanoscale W Coating on Corrosion Behavior of Diamond/Aluminum Composites

被引：8
作者：
Zhu, Ping [1 ,2 ]
Zhang, Qiang [1 ,2 ]
Xia, Yixiao [1 ,2 ]
Sun, Kai [1 ,2 ]
Lin, Xiu [3 ]
Gou, Huasong [1 ,2 ]
Shil'ko, Serge [4 ]
Wu, Gaohui [1 ,2 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Key Lab Adv Struct Funct Integrated Mat & Green Mf, Harbin 150001, Peoples R China
[3] Ind Technol Res Inst Heilongjiang Prov, Harbin 150001, Peoples R China
[4] Natl Acad Sci Belarus, VA Belyi Met Polymer Res Inst, Gomel 246050, BELARUS
来源：
NANOMATERIALS | 2023年 / 13卷 / 02期
基金：
中国国家自然科学基金;
关键词：
metal-matrix composites (MMCs); corrosion resistance; microstructures; interface reaction; metal coatings; ENHANCED THERMAL-CONDUCTIVITY; DIAMOND PARTICLES; MECHANICAL-PROPERTIES; MATRIX COMPOSITE; PRESSURE INFILTRATION; AL/DIAMOND COMPOSITES; AL; STABILITY; SURFACE; TI;
D O I：
10.3390/nano13020307
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
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页数：15
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