Mazumder, R and Chakravarty, D and Bhattacharya, Dipten and Sen, Amarnath (2009) Spark plasma sintering of BiFeO3. Materials Research Bulletin, 44 (3). pp. 555-559. ISSN 0025-5408

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Abstract

Dense BiFeO3 ceramics were prepared by a novel spark plasma sintering (SPS) technique. The sintering was conducted at temperatures ranging from 675 to 750 8C under 70 MPa pressure. A bulk density value up to 96% of theoretical density was achieved in the process. This contrast to around 90% of the theoretical density achieved by conventional sintering at around 830 8C. It was found that the tendency to form unwanted Bi2Fe4O9 phase is higher at a high sintering temperature for SPS. The dielectric and ferroelectric properties also improved (with respect to conventionally sintered sample) for spark plasmasintered samples.

Item Type:	Article
Uncontrolled Keywords:	Ceramics; Dielectric properties; Ferroelectricity
Subjects:	Electronics
Divisions:	Sensor and Actuator
Depositing User:	Bidhan Chaudhuri
Date Deposited:	06 Mar 2012 12:59
Last Modified:	06 Mar 2012 12:59
URI:	http://cgcri.csircentral.net/id/eprint/1177

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