| Production and Characterization of Alumina and
Steatite Based Ceramic Insulators |
Mehmet Seref Sonmez*, Sevki Samet Kaplan, Caglar Altun and Mahmut Ercan Acma
Pages : 161-164
DOI : 10.1080/0371750X.2019.1657954 |
| Abstract |
| In this study, production of alumina and steatite containing ceramic insulators as
thermostat material was realized by investigating the composition, pressing
pressure and sintering temperature. 90 bar of pressing pressure was employed to
give a ring shape to thermostat insulators by mixing with 3% kerosene. Alumina
based samples were sintered at 1400oC, while 1300oC sintering temperature was
determined to be efficient for steatite based samples. Optimum pressing pressure
and sintering temperature for batches were 90 bar and 1350oC, respectively.
Sintered bodies subjected to Megger test at 1200 V and 50 Hz exhibited good
electrical insulation. It was concluded that higher alumina containing batch
composition was the ultimate candidate as thermostat insulator, especially in
terms of density and compressive strength.
[Keywords: Thermostat ceramics, Megger test, Alumina, Steatite] |
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