Saha, Dipika and Sen, Amarnath and Maiti, Himadri Sekhar (1996) Fast firing of lead magnesium niobate at low temperature. Journal of Materials Research, 11 (4). pp. 932-938. ISSN 0884-2914

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A fast-firing technique for the sintering of lead magnesium niobate relaxer ceramics at relatively low temperature has been described, In this process, the samples containing excess PbO (up to 5 wt. %) are directly introduced into a furnace maintained at a temperature of 950 degrees C and kept there for 15-80 min, followed by a postsintering annealing treatment at 800 degrees C for 10 h. The importance of fast heating as well as annealing treatment has been justified. The sintered samples are near-phase-pure perovskite materials showing high bulk densities (>94%), uniform and dense microstructure, and satisfactory dielectric properties (K-max > 13,000). The technique is simple and economic, does not require any controlled atmosphere, and minimizes hazards from lead volatilization.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 30 Jul 2012 08:17
Last Modified: 23 Mar 2016 13:04

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