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Significant improvement of thermal conductivity for AlN/LAS composite with low thermal expansion | |
Li, Zhenyu1; Wang, Chi1; Xia, Long1; Yang, Hua2; Qin, Chunlin1; Zhong, Bo1; Xiong, Li1; Huang, Xiaoxiao3; Wen, Guangwu4 | |
2020-12-15 | |
发表期刊 | Ceramics International |
ISSN | 02728842 |
卷号 | 46期号:18页码:28668-28675 |
摘要 | Lithium aluminosilicate (LAS), as a ceramic material with ultra-low thermal expansion, has a wide application in the field of precision instruments. But the effective integration of multiple thermal functions, including low thermal expansion and high thermal conductivity, into one material remains a huge challenge. To obtain LAS composites with high thermal conductivity, AlN was added as the reinforcing phase in LAS matrix, which can form a perfect heat conduction network and act as bridges for transferring heat. The thermal conductivity of the composite reaches 12.8 W/(m K) when the AlN content increased to 40 wt%, which is more than 5 times higher than that of bulk LAS. At the same time, the composite still maintains a low coefficient of thermal expansion of less than 3.2 × 10-6/K which matching that of silicon. Therefore, the proper combination between the components of composites is beneficial to the preparation of AlN/LAS composites with both low thermal expansion and excellent thermal conductivity. © 2020 Elsevier Ltd and Techna Group S.r.l. |
关键词 | Aluminum nitride Expansion Heat conduction III-V semiconductors Lithium compounds Thermal expansion High thermal conductivity Lithium aluminosilicate Low coefficient of thermal expansions Low thermal expansion Precision instrument Reinforcing phase Thermal functions |
DOI | 10.1016/j.ceramint.2020.08.026 |
收录类别 | EI |
语种 | 英语 |
出版者 | Elsevier Ltd |
EI入藏号 | 20203409083863 |
EI主题词 | Thermal conductivity |
来源库 | Compendex |
分类代码 | 641.1 Thermodynamics - 641.2 Heat Transfer - 804.1 Organic Compounds - 951 Materials Science |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/115710 |
专题 | 马克思主义学院 材料科学与工程学院 理学院 |
作者单位 | 1.School of Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai; 264209, China; 2.School of Science, Lanzhou University of Technology, Lanzhou; 730050, China; 3.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin; 150001, China; 4.School of Materials Science and Engineering, Shandong University of Technology, Zibo; Shandong; 255049, China |
第一作者单位 | 材料科学与工程学院 |
第一作者的第一单位 | 材料科学与工程学院 |
推荐引用方式 GB/T 7714 | Li, Zhenyu,Wang, Chi,Xia, Long,et al. Significant improvement of thermal conductivity for AlN/LAS composite with low thermal expansion[J]. Ceramics International,2020,46(18):28668-28675. |
APA | Li, Zhenyu.,Wang, Chi.,Xia, Long.,Yang, Hua.,Qin, Chunlin.,...&Wen, Guangwu.(2020).Significant improvement of thermal conductivity for AlN/LAS composite with low thermal expansion.Ceramics International,46(18),28668-28675. |
MLA | Li, Zhenyu,et al."Significant improvement of thermal conductivity for AlN/LAS composite with low thermal expansion".Ceramics International 46.18(2020):28668-28675. |
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