About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Deformation Mechanisms, Microstructure Evolution, and Mechanical Properties of Nanoscale Materials
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Presentation Title |
G-1: Change of Ni Composition According to pH Value of Fe-Ni Invar Manufactured by Electroforming |
Author(s) |
Jihan Gwak, Jun Ha Lee, Seung-Joon Lee, Se-Eun Shin, Yong-Bum Park |
On-Site Speaker (Planned) |
Jihan Gwak |
Abstract Scope |
Fine metal mask used in the organic light-emitting diode display industry uses Fe-Ni Invar alloy with a low coefficient of thermal expansion(CTE). Fe-Ni Invar alloy can be manufactured by a hot-rolling process, however, Fe-Ni Invar alloy is fabricated by electroplating to obtain a thinner sheet for broad application. In the case of Fe-Ni Invar manufactured by electroforming, the CTE is higher than the hot-rolling process, and Fe-Ni Invar alloy close to 0 can be obtained by adjusting the contents of Ni. In this discussion, a Fe-Ni Invar alloy sample with a clean surface and a constant elemental composition was prepared by adjusting the pH value among several variables that control the contents of Ni. When the pH value is high, the Fe composition increases, and the Ni composition decreases, but when the pH value is low, a replated region is generated. |
Proceedings Inclusion? |
Planned: |
Keywords |
Thin Films and Interfaces, Other, |