Dielectric behaviour of La substituted BPZT ceramics

✍ Scribed by Parveen Kumar; Sangeeta Singh; J.K. Juneja; Chandra Prakash; K.K. Raina

• Book ID: 104081126
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 408 KB
• Volume: 404
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2009.03.023

✦ Synopsis

Here, we report dielectric behaviour of lanthanum substituted Ba 0.80 Pb 0.20 Ti 0.90 Zr 0.10 O 3 (BPZT) ceramics. The material series with compositional formula Ba 0.80Àx La x Pb 0.20 Ti 0.90 Zr 0.10 O 3 (BLPZT) with x varying from 0 to 0.01 in the steps of 0.0025 was chosen for investigations. The material was synthesized by solid state reaction method. Reacted powder compacted in form of circular discs were sintered at 1325 1C. All the samples were subjected to X-ray diffraction (XRD) analysis and found to be single phase. Dielectric behaviour was studied as a function of frequency and temperature and Curie temperature (T c ) was determined. T c was found to decrease with increasing x. The details are discussed and presented in this paper.