Proton-assisted low-temperature sintering of Cu fine particles stabilized by a proton-initiating degradable polymer

DOI 機関リポジトリ (HANDLE) Web Site 被引用文献7件 オープンアクセス

書誌事項

公開日
2015
資源種別
journal article
権利情報
  • Creative Commons Attribution 3.0 Unported
DOI
  • 10.1039/c5ra21402e
公開者
Royal Society of Chemistry

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説明

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.

収録刊行物

  • RSC advances

    RSC advances 5 (124), 102904-102910, 2015

    Royal Society of Chemistry

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