The Effects of Sintering Temperature on the Physical and Electrical Properties of SrTiO3 Ceramics Prepared Via Sol-Gel Combustion Method. Issue 1 (26th January 2016)

• Record Type: Journal Article
• Authors: Klaytae, Thanawat; Panthong, Piram; Onjun, Yingyuen; Thountom, Sarawut
• Is Part Of: Ferroelectrics. Volume 491:Issue 1(2016)
• Page Start: 79
• Page End: 86
• Publication Date: 2016-01-26
• Subjects: SrTiO3 -- sol-gel -- dielectric constant; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2015.1071630
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract : The SrTiO3 ceramics was prepared via sol-gel combustion method by using citric acid as a fuel. Cubic perovskite structures of SrTiO3 were obtained at 600°C. The SrTiO3 powder was compacted into disks under pressure of 110 MPa, the pellets were sintered at 900–1300°C and the dwelling times were variable. The result shows that the density grain size and dielectric constant increased corresponding with the increasing of dwelling times. The grain size was about 124–300 nm. The SrTiO3 sintered at 1300°C for 4 h shows the highest dielectric constant (ϵr = 382), dielectric loss tangent (tanδ < 0.5) and the density was about 4.42 g/cm 3 .