書誌事項
- タイトル別名
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- Zone-Refining of Lead and Tin
- タイイキヨウユウホウ ニ ヨル スズ オヨビ ナマリ ノ セイセイ
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Twenty molten zones were passed on lead and tin bars, which were vacuum-sealed in glass tubes. The refining effect and the impurity distribution were estimated from intensity measurement of the emission spectrum. It was confirmed that zone-refining was effective for Pb and Cu in Sn; Cu and Ag in Pb. But we could not observe the refining effect for Bi in Sn; therefore, another method must be found in order to remove Bi in Sn. The highest purity was usually found at nearly middle but a little closer to the top portion. Adding one per cent of 4-nine-purity lead to the zone-refined purest lead, we could observe a clear difference in microstructure of quenched specimens from molten state. It was concluded that purity was improved by two orders, from 4-nine to 6-nine, — at least in respect of those impurities which had effects on quenched structure. This improvement in purity was endorsed by the results of spectrum analysis.
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 24 (2), 121-125, 1960
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001206481647872
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- NII論文ID
- 130007333230
- 40018257633
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 9153073
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- データソース種別
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- JaLC
- NDL
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- 使用不可