Study of the Effect of Sintering Temperature on the  Electrical Conductivity of Ceramic

	Study of the Effect of Sintering Temperature on the Electrical Conductivity of Ceramic
Diyala Journal For Pure Science
Article 1, Volume 6, Issue 4, 2010, Pages 112-121
Abstract
In this study conventional ceramic technology used for preparing ceramic samples from dukhla kaolin, then studying the influenced of three pyramidal substances (Binder, lubricant, plasticizer) and sintering temperatures on the dielectrically properties and direct electrical conductivity measurements for ceramic bodies. The Duekhla Kaolin was washed by distilled water and dried out through (110 oc) for (24hr) in order to dispose f the waste water. The material was milled by porcelain miller out to the appropriate level of grains for the research purposes Dukhela Kaolin (D<200µm).Three groups of samples prepared) depending on the three pyramidal substances (Binder.Plasticier, Lubricant) of variable rates. The groups consist of (90%) Dukhela Kaolin with an addition of (10%) from the three ratios of the plasticized materials, then the ceramic bodies formed by using hot pressing. Then the samples were sintered under three different temperatures ( 1250 , 1300 , 1350○C) with a maturity period of (2hr) an elevation speed of (2○C /min) and a desecration speed of (5○C /min).The models were then placed an oven (10-2Toor),for measuring purposes. The conclusion of this search has shown that increasing of the binder rate increased the electrical on rate of binder material increased on electrical conductivity. And increasing the sintering temperature increased the direct electrical conductivity.
Keywords
Sintering Temperature; Electrical Conductiv

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