Effect of Impurities on Growth of Ti Silicides in Bulk Ti/Si Diffusion Couple
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- Shimozaki Toshitada
- The Center for Instrumental Analysis, Kyushu Institute of Technology
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- Okino Takahisa
- College of Liberal Arts and Sciences, Nippon Bunri University
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- Yamane Masahiro
- Department of Materials Science and Engineering, Kyushu Institute of Technology
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- Wakamatsu Yoshinori
- Department of Materials Science and Engineering, Kyushu Institute of Technology
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- Onishi Masami
- Department of Materials Science and Engineering, Chang-won National University
Bibliographic Information
- Other Title
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- Effect of Impurities on Growth of Ti Si
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Abstract
Reaction diffusion and the Kirkendall effect in Ti–Si binary system have been studied by using sandwich-type bulk diffusion couples consisting of 99.99% Ti, 99.9999% Ti plates and a ⟨111⟩ oriented Si wafer. The results have been compared with our previous one obtained by using 99.99% Ti/Si and 99.5% Ti/Si couples. The faster growth of TiSi2 formed in these Ti/Si diffusion couples, the higher the purity of titanium. To identify the element which slows down the growth rate of TiSi2, the effects of oxygen, nitrogen, carbon and iron were studied by adding oxygen and nitrogen into 99.9999% Ti or by depositing carbon and iron on the Ti surface. It has been clarified that iron atoms slow down the growth of TiSi2.<BR>Silicon atoms diffuse 50 to 100 times faster than titanium atoms in TiSi2. Iron affects the diffusivity of Si more effectively than that of Ti.<BR>On the basis of these results the role of iron in the Ti/Si bulk reaction diffusion couple has been discussed by taking into account a possibility of diffusion barrier effect or grain boundary diffusion.
Journal
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- Materials Transactions, JIM
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Materials Transactions, JIM 38 (10), 865-870, 1997
The Japan Institute of Metals
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Keywords
Details 詳細情報について
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- CRID
- 1390001204245671936
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- NII Article ID
- 130003556858
- 10002453979
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- NII Book ID
- AA10699969
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- COI
- 1:CAS:528:DyaK1cXktFGluw%3D%3D
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- ISSN
- 2432471X
- 09161821
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- NDL BIB ID
- 4337923
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed