TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
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1991年
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69卷
关键词:
D O I:
10.1080/00202967.1991.11870912
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
This paper describes the influence of bath components, such as buffers, chelates, base metals and organic additives on bath operation and deposits obtained from hard acid gold baths. It also describes the interrelationships between these components. Buffers are primarily used for pH control of the solution in use, since pH influences the effect of chelates and brighteners. Chelates can be used to complex out contaminants. They are also used to control effective base metal concentrations as part of the brightener system. Organic additives, used separately and in conjunction with base metal brighteners, can enhance bright plating ranges and change deposit distribution characteristics.