Journal of the Korean institute of surface engineering (한국표면공학회지)
- Volume 26 Issue 5
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- Pages.245-254
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- 1993
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- 1225-8024(pISSN)
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- 2288-8403(eISSN)
The Composition and the Microstructure of Pulse current electrodeposits of SilverTin alloy
파형전류전해에 의한 은-주석합금 전착층의 조성 및 현미경조직
Abstract
The effects of pulse current electrolysis conditions on the composition and the microstructure of Ag-Sn alloy were studied by using a pyrophosphate bath. Both cathode current efficiency and throwing power of alloy deposits formed under pulse plating conditions, decreased with increasing mean current density, and lower than those under D.C. electrolysis condition. Tin content of Ag-Sn alloy decreased noticebly with in-creasing the mean current density, while it increased with the increase of On-time from 1 to 10 ms. The pre-ferred orientation of Ag-Sn alloy changed with increasing cathode overpotential in the sequence of (100)longrightarrow(100)+(111)longrightarrow(111) at
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