All issues
Volume 17 (1968 - 196･･･
- Issue 6 Pages 237-
- Issue 5 Pages 187-
- Issue 4 Pages 133-
- Issue 3 Pages 95-
- Issue 2 Pages 53-
- Issue 1 Pages 1-
Volume 17, Issue 6
Displaying 1-3 of 3 articles from this issue
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Tatsuya SAMEJIMA1969 Volume 17 Issue 6 Pages 237-255
Published: March 31, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (2592K) -
Nozomu TAKEUCHI1969 Volume 17 Issue 6 Pages 256-257
Published: March 31, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe absorption bands of colloidal zinc and mercury in KCl have been calculated.It is considered that the electronic transition bands of these neutral metals in KCl of Ben-Dor et al.had better been.assigned as colloidal origin.View full abstractDownload PDF (263K) -
Jiro KASHIMA, Masaaki KUBOTA1969 Volume 17 Issue 6 Pages 258-267
Published: March 31, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSA study is made on the addition of elements to promote the white solidification of cast iron for the purpose of spectrographic analysis.
The results obtained are summarized as follows:
(1) Even if a thin plate sample is made by casting the melt in a copper mold, it is impossible to restrain the graphitization for samples having the saturation degree of carbon above 1.1.
(2) Little effect is observed when 1 to 5 per cent of tin is added to increase the chilling tendency and hence to improve the analytical precision.
(3) Addition of 1 per cent of chromium or tellurium ensures the white solidification of almost all samples whose saturation degrees are less than 1.3, and besides analytical precision and accuracy are improved for silicon and manganese by using these auxiliary elements.View full abstractDownload PDF (8534K)
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