无压烧结工艺对浆料直写式定向多孔铜组织及致密度的影响

doi:10.11896/cldb.22040202

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Abstract The pressureless sintering using tube furnace plays a decisive role in the microstructure and compactness of unidirectional porous copper prepared by direct ink writing. In this work, unidirectional porous copper was prepared by DIW and sintering process. The microstructures of unidirectional porous copper after singtering under flowing high purity argon gas and Ar-H₂ gas mixture were compared by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the oxidation behavior during singtering was analyzed. The effects of sintering temperature and holding time on the density of unidirectional porous copper were studied under different sintering parameters. The results show that:sintered in high purity argon, unidirectional porous copper undergoes severe oxidation and generates Cu₂O, while Ar-H₂ mixture effectively avoids oxidation by reduction. The optimal sintering process parameters were sintering temperature of 1 100 ℃ and holding time of 6 h. The density of unidirectio-nal porous copper reached 87.2% and the shrinkage rate was 33.3%. This study provides theoretical guidance for pressureless sintering DIW porous copper in tube furnace.

Key words： tube furnace pressureless sintering direct ink writing (DIW) unidirectional porous copper sintering process

Published: 10 February 2024 Online: 2024-02-19

CLC number:

TG146.1

Fund:National Natural Science Foundation of China (51575245), Danyang Scientific and Technological Achievements Transformation Project (SCG202108), Zhenjiang Key Research and Development Program (KZ2020001).

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	Articles by authors
	WAN Yinchen
	WANG Yun
	LI Ruitao
	XU Lei
	YU Chao
	GU Yujia

Cite this article:

WAN Yinchen,WANG Yun,LI Ruitao, et al. Effect of Pressureless Sintering Process on Microstructure and Density of Unidirectional Porous Copper Fabricated by Direct Ink Writing[J]. Materials Reports, 2024, 38(3): 22040202-6.

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http://www.mater-rep.com/EN/10.11896/cldb.22040202 OR http://www.mater-rep.com/EN/Y2024/V38/I3/22040202

1 Qiu T W, Liu M, Liu Y, et al. Refrigeration, 2020, 48 (8), 85 (in Chinese).
裘腾威, 刘敏, 刘源, 等. 低温与超导, 2020, 48(8), 85.
2 Jia X G, You J H, Qu Y D, et al. Foundry Technology, 2018, 39(10), 2158 (in Chinese).
贾星光, 尤俊华, 曲迎东, 等. 铸造技术, 2018, 39(10), 2158.
3 Shi Y J, Wang X F, Wang Y Q, et al. Materials Reports, 2012, 26(21), 56 (in Chinese).
石育佳, 王秀峰, 王彦青, 等. 材料导报, 2012, 26(21), 56.
4 Hou T B. The design and performance analysis of micro heat exchangers for high-power LED by water cooling. Master's Thesis, South China University of Technology, China, 2014 (in Chinese).
侯亭波. 面向大功率 LED 水冷散热的微型换热器设计及性能分析. 硕士学位论文, 华南理工大学, 2014.
5 Nakajima H. Progress in Materials Science, 2007, 52 (7), 1091.
6 Song Q L, Jin Q L. Special Casting & Nonferrous Alloys, 2016, 36(11), 1134 (in Chinese).
宋群玲, 金青林. 特种铸造及有色合金, 2016, 36(11), 1134.
7 Zhou Z H, Jiang Y G, Feng J Z, et al. Materials Reports, 2023, 37 (4), 20120004 (in Chinese).
周振豪, 姜勇刚, 冯军宗, 等. 材料导报, 2023, 37(4), 20120004.
8 Jakus A E, Taylor S L, Geisendorfer N R, et al. Advanced Functional Materials, 2015, 25(45), 6985.
9 Xiong W. Study on pore control of powder metallurgy pure copper thermal conductive material general research institute for nonferrous metals. Master's Thesis, General Research Institute for Nonferrous Metals, China, 2021 (in Chinese).
熊薇. 粉末冶金纯铜导热材料的孔隙控制研究. 硕士学位论文, 北京有色金属研究总院, 2021.
10 Vincent C, Silvain J F, Heintz J M, et al. Journal of Physics and Che-mistry of Solids, 2012, 73(3), 499.
11 Li W, Wang Y T, Jiao Z W, et al. Nonferrous Metals Engineering, 2020, 10(3), 29 (in Chinese).
李伟, 王永涛, 焦志伟, 等. 有色金属工程, 2020, 10(3), 29.
12 Vidal E, Torres D, Guillem M J, et al. Metals, 2020, 10(9), 1156.
13 Kenel C, Casati N P, Dunand D C. Nature Communications, 2019, 10(1), 1.
14 Kang S L. Sintering:densification, grain growth and microstructure, Elsevier Press, NED, 2004, pp. 3.
15 Ahn M K, Lee J B, Koh Y H, et al. Materials Chemistry and Physics, 2016, 176, 104.
16 Song B, Kenel C, Dunand D C. Additive Manufacturing, 2020, 35, 101412.
17 Ding Y T, Lu Z H, Hu Y, et al. Journal of Lanzhou University of Technology, 2010, 36(2), 1 (in Chinese).
丁雨田, 卢振华, 胡勇, 等. 兰州理工大学学报, 2010, 36(2), 1.
18 Lu X Q, Wang J, Wang Y P, et al. Materials Reports, 2012, 26(S2), 371 (in Chinese).
卢雪琼, 王军, 王亚平, 等. 材料导报, 2012, 26(S2), 371.