Transactions of the INDIAN CERAMIC SOCIETY Vol. 50 1991
Effect of Bismuth Oxide on Thick Film
Glazed Resistors
s. K. GUHA,* MANJUSREE SAHA AND N. HALDER
Pages : 38-40
DOI : 10.1080/0371750X.1991.10804483
Abstract
The effect of bismuth oxide on the sheet resistivity and TCR or
ruthenium dioxide based resistors has been studied. It has been obse"
ed that bismuth oxide decreases the sheet resistivity and shifts
the TCR towards the positive direction. It also enhances the formation
of complex ruthenates and results in much lower requirement or
Ru02 than otherwise found necessary. An excess of bismuth oxide,
on the other hand, may often result in the flow of glass which in turn
will impair the geometry of the print.
