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Volume 48, Issue 5
Displaying 1-15 of 15 articles from this issue
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[in Japanese]1997 Volume 48 Issue 5 Pages 488
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.488JOURNAL FREE ACCESSDownload PDF (74K) -
Hidehiko ENOMOTO1997 Volume 48 Issue 5 Pages 489-495
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.489JOURNAL FREE ACCESSDownload PDF (806K) -
Fujio MAMIYA1997 Volume 48 Issue 5 Pages 496-500
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.496JOURNAL FREE ACCESSDownload PDF (1328K) -
Tetuhiro AOE1997 Volume 48 Issue 5 Pages 501-506
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.501JOURNAL FREE ACCESSDownload PDF (684K) -
Hiroyuki IWASAWA1997 Volume 48 Issue 5 Pages 507-512
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.507JOURNAL FREE ACCESSDownload PDF (699K) -
Yukio NISHIHAMA1997 Volume 48 Issue 5 Pages 513-517
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.513JOURNAL FREE ACCESSDownload PDF (564K) -
Mitsuhide MAEDA1997 Volume 48 Issue 5 Pages 518-521
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.518JOURNAL FREE ACCESSDownload PDF (467K) -
Mamoru MITA1997 Volume 48 Issue 5 Pages 533-538
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.533JOURNAL FREE ACCESSCu 99.99mass% (4N) and Cu 99.9999mass% (6N) copper source metals were used for vapor deposition to consider the effects of the purity of the source metal on the photochemical etching and electroplating of vapor deposited copper. In comparison to film deposited using a 4N copper source, the film deposited using a 6N source exhibited superior etching pattern wall smoothness in photochemical etching and was free from dendrite growth in nickel plating.
X-ray diffraction analysis showed no difference in copper crystal orientation between films formed with the 4N and 6N sources. Sputtering AES however, showed that there was less oxygen content in the copper surface deposited using the 6N copper source.View full abstractDownload PDF (2090K) -
Mamoru MITA1997 Volume 48 Issue 5 Pages 539-543
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.539JOURNAL FREE ACCESSDendrite growth and the method of preventing the dendrite growth in nickel electroplating were studied on photochemically etched patterns of vapor depositing copper using a 99.99mass% (4N) copper source.
Soft chemical etching and increasing the plating power source ripple were found to be effective in preventing the dendrite growth. No dendrite growth with copper pattern formed using a 6N copper source or rolled or electrodeposited copper foil. It was found that copper patterns formed with a 6N copper source had higher resistivity in high temperature and high humidity testing than patterns formed with a 4N copper source.View full abstractDownload PDF (1935K) -
Hisami YUMOTO, Touru IMAMOTO, Yoshinori KINASE, Song Ji LI, Masatou IS ...1997 Volume 48 Issue 5 Pages 544-548
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.544JOURNAL FREE ACCESSCo-Fe-P soft magnetic films for thin film heads were prepared by electroplating. The amorphous phase was obtained at a current density of 5mA/cm2, and the crystal phase at 20mA/cm2. The values of Bs in the amorphous phase was 1.2T and of He 4Oe. The value of Bs in the crystal phase was 1.8T and of He 27Oe. Co-Fe-P crystal/amorphous multilayered films were fabricated by pulsating current between 5 and 20mA/cm2. When one layer was about 100-200nm thick, the values of Bs and He were about equal to the mean values of the crystal and amorphous phases. A layer of 10nm thick had excellent soft magnetic properties; Bs did not decrease (1.6T), but the He was low (6Oe) and close to that of the amorphous film.View full abstractDownload PDF (1458K) -
Tohru WATANABE, Masatoshi WATANABE1997 Volume 48 Issue 5 Pages 549-553
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.549JOURNAL FREE ACCESSFe-W amorphous alloy films were prepared on an iron substrate by an electroplating method. The hardness of the heat-treated film was greater than 2, 000 (Hv/50g), according to the Vikers hardness test. By coating the surface of a conventional end-mill with this Fe-W plating film, a cutting tool with very high anti-wear properties can be obtained. This hardening mechanism may be explained by the changes in the crystallographic structure of the plated Fe-W alloy film. The structure changed from crystalline to amorphous as the concentration of W in the film increases. At W concentrations of above 50wt%, the film becomes amorphous. This concentration is in agreement the concentration of an intermetallic compound that become very hard by heat-treatment.View full abstractDownload PDF (1289K) -
Hideki HAGI1997 Volume 48 Issue 5 Pages 554-558
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.554JOURNAL FREE ACCESSAccording to our previous work on the corrosion behavior of zinc-nickel alloy electroplated steel sheets in aqueous solutions, corrosion induces the formation of grooves that reach to the underlying steel. The corrosion grooves, which are thought to be caused by corrosion cracking, may cause deteriorating in corrosion resistance.
In the present study, a method for measuring the fracture strength of zinc-nickel alloy electroplating films was established as a part of fundamental study toward improving corrosion resistance through suppression of corrosion groove formation. Fracture strength was determined by detection of acoustic emissions generated by film cracking during tensile testing of specimens. The fracture strength of zinc-nickel alloy films varied depending on plating current density.View full abstractDownload PDF (2160K) -
Seishi MASAKI, Hiroyuki INOUE, Koji YAMAKAWA1997 Volume 48 Issue 5 Pages 559-564
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.559JOURNAL FREE ACCESSBright silver coatings were obtained from silver-succinimide baths. The pH dependence on the rest potential of Ag electrodes and the cathodic polarization curve were measured to clarify the electrodeposition mechanism. The effects of pH, temperature, and the bath's silver concentration on surface appearance were evaluated using Hull Cell tests. The current efficiency and microscopic surface morphology were also examined.
The bath composition and operating conditions most conductive to obtaining a mirror-bright surface on the electroplated silver were 0.45mol/L of CH3SO3Ag, 1.5mol/L of succinimide, 0.025mol/L of Na2B4O7, a pH of 10, and a 25°C bath temperature. Cathode current efficiency exceeded 90% at current densities between 10 and 20mA/cm2. It was estimated that the silver was deposited from Ag (C4H4O2N)2- complex ion and the process was controlled by the charge transfer in the bath.View full abstractDownload PDF (1147K) -
Manabu ITO, Fumiaki AONO, Akiyoshi KOSUGE, Ryouji HIRAYAMA, Hirohisa K ...1997 Volume 48 Issue 5 Pages 565-566
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.565JOURNAL FREE ACCESSDownload PDF (819K) -
Ryuji OHSHIMA, Kanji IIZUKA, Toshimasa SUZUKI, Keiji HIRABAYASHI, Yoic ...1997 Volume 48 Issue 5 Pages 567-568
Published: May 01, 1997
Released on J-STAGE: October 30, 2009
DOIhttps://member-cnki-net-s-1416.res.gxlib.org.cn:443/rwt/1416/https/MSYXTLUQPJUB/10.4139/sfj.48.567JOURNAL FREE ACCESSDownload PDF (847K)
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