| Development and Evaluation of Pyrolytic
Graphite Coated Resistors |
v. K. MOORTHY, A. K. KULKARNI AND B. R. VYAS
Pages : 71-79
DOI : 10.1080/0371750X.1966.10855556 |
| Abstract |
| Attempts were made to develop impervious ceramic cores for use in the preparation
of deposited graphite resistors using indigenous raw materials. Body compositions
were adjusted to suit the sintering conditions (less than 1300°C) for the production
of impervious cores. Pyrolytic graphite was deposited on these cores in vacuum at a
temperature of about 900°C. Grooves were cut on these samples to give the desired
electrical resistance. After fixing end caps for electrical connections, the samples
were evaluated for behaviour in the high voltage and noise tests. Special attention
was given to a study of the relation between the surface finish of the cores and the
electrical properties of the resistors, with a view to arrive at suitable conditions for
the production of the resistors. |
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