2004 Fiscal Year Final Research Report Summary
Development of Portable Experimental Apparatus on Education of Polymer Physics
| Project/Area Number |
15360418
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Reaction engineering/Process system
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
SAITO Hiromu Tokyo University of Agriculture and Technology, Institute of Symbiotic Science and Technology, Associate Professor, 大学院・共生科学技術研究部, 助教授 (90196006)
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| Co-Investigator(Kenkyū-buntansha) |
MIYATA Seizo MIYATA,Seizo, 本部, 学長 (90015066)
WATANABE Toshiyuki Tokyo University of Agriculture and Technology, Institute of Symbiotic Science and Technology, Professor, 大学院・共生科学技術研究部, 教授 (10210923)
USUI Hiroaki Tokyo University of Agriculture and Technology, Institute of Symbiotic Science and Technology, Associate Professor, 大学院・共生科学技術研究部, 助教授 (60176667)
SONE Masato Tokyo University of Agriculture and Technology, Institute of Symbiotic Science and Technology, Research Associate, 大学院・共生科学技術研究部, 助手 (30323752)
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| Project Period (FY) |
2003 – 2004
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| Keywords | Carbon Dioxide / Electroplating / Supercritical Fluid / Emulsion / Surfactant / Metal Structure / Grain Structure / Hardness |
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| Research Abstract |
An innovative electroplating technology "Sustainable Supercritical Nanoplating (SSNP)", which is a hybrid of supercritical fluid and electroplating technology, has been developed. In this technology, electroplating reactions are carried out in emulsion of supercritical carbon dioxide (CO_2) and electroplating solution with surfactants. The plated film by this method did not have any pinholes, which come from hydrogen babbles produced by the electrolysis of water. Compared to electroplating from the solution only, higher quality nickel films have been prepared by this method, which have higher uniformity, smaller grain size (11.1nm), and significantly higher Vickers hardness. Moreover, the current efficiency and electric resistance value were measured as a function of CO_2 volume fraction in the emulsion with few kinds of surfactants. These results show that dense CO_2 beyond critical point of CO_2 is effective to form emulsion for the electroplating reaction. On the basis of the electrical conductivity measurements, the emulsion was classified into CO_2 in water(C/W) type in the wide range of the CO_2 volume fraction from 0 to 80 %. The discontinuous electrochemical reaction of the emulsion including supercritical carbon dioxide might play an important role to attain such excellent properties of the plated film.
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Research Products
(55 results)
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[Book] 光機能性分子の科学2004
Author(s)
堀江一之, 牛木秀治, 渡辺敏行
Total Pages
243
Publisher
講談社サイエンティフィック
Description
「研究成果報告書概要(和文)」より
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