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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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

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