Effects of Soaking Time on Properties of PMNT Ceramics Fabricated by Agar Gel-Casting Method. Issue 1 (12th February 2021)

• Record Type: Journal Article
• Authors: Choyuiad, Chanon; Samadoloh, Sukanya; Bomlai, Pornsuda; Lertwittayanon, Kowit; Jiansirisomboon, Sukanda; Promsawat, Methee
• Is Part Of: Integrated ferroelectrics. Volume 214:Issue 1(2021)
• Page Start: 106
• Page End: 114
• Publication Date: 2021-02-12
• Subjects: PMNT -- piezoelectric -- gel-casting -- soaking time -- energy harvesting; Ferroelectric devices -- Periodicals; Integrated circuits -- Periodicals; 537.244805
• DOI: 10.1080/10584587.2020.1857183
• Languages: English
• ISSNs: 1058-4587

Abstract

Abstract: In this study, Pb(Mg1/3 Nb2/3 )0.65 Ti0.35 O3 (PMNT) ceramics were prepared by a water-based gel-casting method. The gel-cast mixtures were dried through soaking in acetone with different soaking times (7, 10, 13, 16 and 19 days). Effects of acetone soaking times on phase, density, microstructure, dielectric, ferroelectric and piezoelectric properties of prepared ceramics were aimed to investigate. Acetone soaking time did not affect crystal structure and density of the prepared ceramics. Average grain size increased doubly as acetone soaking time raised up to 13 days. With increasing acetone soaking time, dielectric constant tended to increase while loss tangent decreased. The acetone soaking time of 7 days was found to be an optimum time period for drying gel-cast mixture which led to PMNT ceramics with optimum ferroelectric and piezoelectric properties, i.e. Pr, Ec, d 33 and g 33 of 21.8 µC/cm 2, 7.8 kV/cm, 306 pC/N and 20.8 × 10 −3 V⋅m/N, respectively, which were comparable to PMNT ceramics formed by dry-pressing technique.