Premium
Modeling and Scaleup of Galvanic Deoxidation of Molten Metals Using Solid Electrolyte Cells
Author(s) -
Yuan Shi,
Pal Uday B.,
Chou Kuo C.
Publication year - 1996
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1996.tb07923.x
Subject(s) - electrolyte , galvanic cell , materials science , cathode , anode , cermet , copper , yttria stabilized zirconia , tube (container) , chemical engineering , cubic zirconia , metallurgy , composite material , electrode , chemistry , ceramic , engineering
Argon and induction stirred copper melts were deoxidized at different temperatures by short‐circuiting a solid electrolyte cell. The solid electrolyte cell consisted of an yttria‐stabilized zirconia tube closed at one end. The tube interior was flushed with a reducing gas and the tube was immersed in the copper melt. A layer of porous Ni‐ZrO 2 cermet deposited on the inner wall of the tube served as the anode while the copper melt was the cathode. The deoxidation experiments were modeled as a function of mass transfer in the melt, temperature, electronic and ionic conductivity of the electrolyte, short‐circuit resistance, and flow rate of the reducing gas. The deoxidation model was used to discuss process optimization and scaleup.