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Proton-assisted low-temperature sintering of Cu fine particles stabilized by a proton-initiating degradable polymer
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Title: | Proton-assisted low-temperature sintering of Cu fine particles stabilized by a proton-initiating degradable polymer |
Authors: | Matsubara, Masaki Browse this author | Yonezawa, Tetsu Browse this author →KAKEN DB | Minoshima, Takato Browse this author | Tsukamoto, Hiroki Browse this author | Yong, Yingqiong Browse this author | Ishida, Yohei Browse this author | Mai Thanh Nguyen Browse this author | Tanaka, Hiroki Browse this author | Okamoto, Kazuki Browse this author | Osaka, Takuya Browse this author |
Issue Date: | 2015 |
Publisher: | Royal Society of Chemistry |
Journal Title: | RSC advances |
Volume: | 5 |
Issue: | 124 |
Start Page: | 102904 |
End Page: | 102910 |
Publisher DOI: | 10.1039/c5ra21402e |
Abstract: | Metallic copper fine particles were prepared by chemical reduction of CuO in the presence of thermally degradable poly-1,4-butanediol-divinylether (BDVE). Because a BDVE thin layer formed on the particle surfaces, the obtained copper particles were stable and did not undergo obvious oxidation under ambient conditions. The ether groups of BDVE were hydrolyzed with protons, and this generated small fragment molecules. The BDVE-stabilized copper fine particles and their pastes can be therefore sintered at 150 degrees C in the presence of protons. Electro-conductive films with a relatively low resistivity of 8.5 x 10(-5) Omega cm were obtained on a alumina substrate in the presence of formic acid, and hot pressed conductive pellets with a resistivity of 2.9 x 10(-5) Omega cm were also obtained without any pre-oxidative annealing in the presence of proton generator molecules at very low temperatures. The hot pressed pellets show a high anti-oxidative ability and their corrosion tests revealed their good anti-corrosion property. |
Rights: | http://creativecommons.org/licenses/by/3.0/ |
Type: | article |
URI: | http://hdl.handle.net/2115/60503 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 米澤 徹
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