Electroplating of iridium - Cobalt alloy

T. Ohsaka, Y. Matsubara, K. Hirano, Tomoji Ohishi

研究成果: Article

7 引用 (Scopus)

抄録

The electroplating of iridium with cobalt from an electrolyte containing 26 mmol dm-3 sodium hexabromoiridate(III) and 85 mmol dm-3 cobalt(II) sulphate was examined. The codeposition of cobalt with iridium was observed in the electrolyte containing iridium ion at more positive potential than the deposition potential of cobalt alone. The composition ratio of iridium and cobalt in the codeposit can be changed by controlling the current density or the electrode potential. The deposit seems to be alloyed because the oxidation behaviour was different from those of the deposits of either iridium or cobalt plated alone. The oxidation potential of the codeposit changes with the hydrogen adsorption. The increase in the cobalt content of the codeposited coating reduced deposit cracking.

元の言語English
ページ(範囲)265-269
ページ数5
ジャーナルTransactions of the Institute of Metal Finishing
85
発行部数5
DOI
出版物ステータスPublished - 2007 9

Fingerprint

iridium alloys
Iridium alloys
cobalt alloys
Cobalt alloys
electroplating
Electroplating
Cobalt
Iridium
cobalt
iridium
Deposits
deposits
Electrolytes
electrolytes
Oxidation
oxidation
Sulfates
Hydrogen
sulfates
Current density

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces
  • Metals and Alloys

これを引用

Electroplating of iridium - Cobalt alloy. / Ohsaka, T.; Matsubara, Y.; Hirano, K.; Ohishi, Tomoji.

:: Transactions of the Institute of Metal Finishing, 巻 85, 番号 5, 09.2007, p. 265-269.

研究成果: Article

Ohsaka, T. ; Matsubara, Y. ; Hirano, K. ; Ohishi, Tomoji. / Electroplating of iridium - Cobalt alloy. :: Transactions of the Institute of Metal Finishing. 2007 ; 巻 85, 番号 5. pp. 265-269.
@article{660161f31a8c4014829c3f93e453bb24,
title = "Electroplating of iridium - Cobalt alloy",
abstract = "The electroplating of iridium with cobalt from an electrolyte containing 26 mmol dm-3 sodium hexabromoiridate(III) and 85 mmol dm-3 cobalt(II) sulphate was examined. The codeposition of cobalt with iridium was observed in the electrolyte containing iridium ion at more positive potential than the deposition potential of cobalt alone. The composition ratio of iridium and cobalt in the codeposit can be changed by controlling the current density or the electrode potential. The deposit seems to be alloyed because the oxidation behaviour was different from those of the deposits of either iridium or cobalt plated alone. The oxidation potential of the codeposit changes with the hydrogen adsorption. The increase in the cobalt content of the codeposited coating reduced deposit cracking.",
keywords = "Deposit cracking, Electroplating, Hydrogen adsorption, Iridium-cobalt alloy, Oxidation, Voltammetry",
author = "T. Ohsaka and Y. Matsubara and K. Hirano and Tomoji Ohishi",
year = "2007",
month = "9",
doi = "10.1179/174591907X229635",
language = "English",
volume = "85",
pages = "265--269",
journal = "Transactions of the Institute of Metal Finishing",
issn = "0020-2967",
publisher = "Maney Publishing",
number = "5",

}

TY - JOUR

T1 - Electroplating of iridium - Cobalt alloy

AU - Ohsaka, T.

AU - Matsubara, Y.

AU - Hirano, K.

AU - Ohishi, Tomoji

PY - 2007/9

Y1 - 2007/9

N2 - The electroplating of iridium with cobalt from an electrolyte containing 26 mmol dm-3 sodium hexabromoiridate(III) and 85 mmol dm-3 cobalt(II) sulphate was examined. The codeposition of cobalt with iridium was observed in the electrolyte containing iridium ion at more positive potential than the deposition potential of cobalt alone. The composition ratio of iridium and cobalt in the codeposit can be changed by controlling the current density or the electrode potential. The deposit seems to be alloyed because the oxidation behaviour was different from those of the deposits of either iridium or cobalt plated alone. The oxidation potential of the codeposit changes with the hydrogen adsorption. The increase in the cobalt content of the codeposited coating reduced deposit cracking.

AB - The electroplating of iridium with cobalt from an electrolyte containing 26 mmol dm-3 sodium hexabromoiridate(III) and 85 mmol dm-3 cobalt(II) sulphate was examined. The codeposition of cobalt with iridium was observed in the electrolyte containing iridium ion at more positive potential than the deposition potential of cobalt alone. The composition ratio of iridium and cobalt in the codeposit can be changed by controlling the current density or the electrode potential. The deposit seems to be alloyed because the oxidation behaviour was different from those of the deposits of either iridium or cobalt plated alone. The oxidation potential of the codeposit changes with the hydrogen adsorption. The increase in the cobalt content of the codeposited coating reduced deposit cracking.

KW - Deposit cracking

KW - Electroplating

KW - Hydrogen adsorption

KW - Iridium-cobalt alloy

KW - Oxidation

KW - Voltammetry

UR - http://www.scopus.com/inward/record.url?scp=35148835103&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35148835103&partnerID=8YFLogxK

U2 - 10.1179/174591907X229635

DO - 10.1179/174591907X229635

M3 - Article

AN - SCOPUS:35148835103

VL - 85

SP - 265

EP - 269

JO - Transactions of the Institute of Metal Finishing

JF - Transactions of the Institute of Metal Finishing

SN - 0020-2967

IS - 5

ER -