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In order to the long-term stability of DSE for electroplating process, the lifetime equations were calculated from the results of the accelerated life testing, and the lifetime of DSE was predicted. The nano-embossing pre-treatment led to 2.65 times in the lifetime of DSE. The degradation mechanism of DSE with a thick metal oxide layer for applied highly current density process condition was identified. The improvement of durability of DSE seems to be closely related to adhesion between titanium plate and mixed metal oxide layer.

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Bibliography

[1] S.R. Park, J.S. Park, J. Korean Electrochem. Soc. 23, 1 (2020).
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Authors and Affiliations

Sung Cheol Park

1 2

e-mail:

ORCID:

Yeon Jae Jung

e-mail:

ORCID:

SeokBon Koo

e-mail:

ORCID:

Kee-Ahn Lee

e-mail:

ORCID:

Seong Ho Son

e-mail:

ORCID:

Korea Institute of Industrial Technology, Advanced Functional Technology R&D Department, Incheon, Republic of Korea
Inha University, Department of Materials Science and Engineering, Incheon, Republic of Korea

Wear and Corrosion Properties of Pure Mo Coating Layer Manufactured by Atmospheric Plasma Spray Process

Yu-Jin Hwang Yurian Kim Soon-Hong Park Sung-Cheol Park Kee-Ahn Lee

Archives of Metallurgy and Materials | 2024 | vol. 69 | No 1 | 81-85 | DOI: 10.24425/amm.2024.147790

Keywords Thermal spray Atmospheric plasma spray coating Molybdenum Wear Corrosion

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Abstract

A pure molybdenum (Mo) coating layer was manufactured by using the atmospheric plasma spray (APS) process and its wear and corrosion characteristics were investigated in this study. A Mo coating layer was prepared to a thickness of approximately 480 μm, and it had sound physical properties with a porosity of 2.9% and hardness of 434 Hv. Room temperature dry wear characteristics were measured through a ball-on-disk test under load conditions of 5 N, 10 N and 15 N. Based on the coefficient of friction graph at 5 N and 10 N, the oxides formed during wear functioned as a wear lubricant, thereby confirming an increase in wear resistance. However, at 15 N, wear behavior changed, and wear occurred due to splat pulling out. A potentiodynamic polarization test was conducted under an artificial seawater atmosphere, and E_corr and I_corr measured 0.717 V and 7.2E-5 A/cm2, respectively. Corrosion mainly occurred at the splat boundary and pores that were present in the initial state. Based on the findings above, the potential application of APS Mo coating material was also discussed.

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Authors and Affiliations

Yu-Jin Hwang

e-mail:

ORCID:

Yurian Kim

e-mail:

ORCID:

Soon-Hong Park

e-mail:

ORCID:

Sung-Cheol Park

e-mail:

ORCID:

Kee-Ahn Lee

e-mail:

ORCID:

Inha University, Department of Materials Science and Engineering, Incheon, 22212, Republic of Korea
POSCO Technical Research Laboratories, Gwangyang 57807, Republic of Korea
Surface Treatment R&D Group, Korea Institute of Industrial Technology, Incheon, 21999, Republic of Korea

Study on Recovery of Valuable Metals in Spent Lithium-Ion Batteries by Al2O3-SiO2-CaO-Fe2O3 Slag System

Tae Boong Moon Chulwoong Han Soong Keun Hyun Sung Cheol Park Seong Ho Son Man Seung Lee Yong Hwan Kim

Archives of Metallurgy and Materials | 2021 | vol. 66 | No 4 | 983-986 | DOI: 10.24425/amm.2021.136410

Keywords Spent lithium-ion battery Smelting Al2O3-SiO2-CaO-Fe2O3 recovery slag

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Abstract

This study investigated the recovery behavior of valuable metals (Co, Ni, Cu and Mn) in spent lithium ion-batteries based on Al2O3-SiO2-CaO-Fe2O3 slag system via DC submerged arc smelting process. The valuable metals were recovered by 93.9% at the 1250℃ for 30 min on the 20Al2O3-40SiO2-20CaO-20Fe2O3 (mass%) slag system. From the analysis of the slag by Fourier-transform infrared spectroscopy, it was considered that Fe2O3 and Al2O3 acted as basic oxides to depolymerize SiO4 and AlO4 under the addition of critical 20 mass% Fe2O3 in 20Al2O3-40SiO2-CaO-Fe2O3 (CaO + Fe2O3 = 40 mass%). In addition, it was observed that the addition of Fe2O3 ranging between 20 and 30 mass% lowers the melting point of the slag system.

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Bibliography

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Authors and Affiliations

Tae Boong Moon

1 2

e-mail:

ORCID:

Chulwoong Han

e-mail:

ORCID:

Soong Keun Hyun

e-mail:

ORCID:

Sung Cheol Park

e-mail:

ORCID:

Seong Ho Son

e-mail:

ORCID:

Man Seung Lee

e-mail:

ORCID:

Yong Hwan Kim

e-mail:

ORCID:

Inha University, Department of Materials Science and Engineering, Incheon, Korea
Korea Institute of Industrial Technology, Research Institute of Advanced Manufacturing and Materials Technology Incheon, 156, Gaetbeol Rd., Yeonsu-gu, Incheon, 406-840, Korea
Mokpo National University, Department of Materials Science and Engineering Mokpo, Korea

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Enhancement of Life Time of the Dimensionally Stable Anode for Copper Electroplating Applications

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Study On The Electro-Refining Of Tin In Acid Solution From Electronic Waste

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A Study on the Durability of Dimensionally Stable Electrode in High-Rate Electroplating Process Condition Using Accelerated Life Test

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Authors and Affiliations

Wear and Corrosion Properties of Pure Mo Coating Layer Manufactured by Atmospheric Plasma Spray Process

Abstract

Authors and Affiliations

Study on Recovery of Valuable Metals in Spent Lithium-Ion Batteries by Al2O3-SiO2-CaO-Fe2O3 Slag System

Abstract

Bibliography

Authors and Affiliations