Optimized electrical properties of (Bi1/2K1/2)TiO3- bi(Mn2/3Sb1/3)O3 lead-free ceramics in mixing phase region

Guo, Zhihua; Zhu, Mankang; Li, Ling; Zheng, Mupeng

doi:10.1007/s10832-018-0140-3

Cited by 6 publications

(1 citation statement)

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“…11), 12) Our previous work also demonstrated that suitable amout of Bi(Mn 2/3 Sb 1/3 )O 3 (BMS) addition can significantly improve the electrical performance of BKT ceramics. 13) In this work, we focus on the origin of the improved sintering ability of 1.5 mol.% BMS-added BKT. It is found that the addition of 1.5 mol.% BMS could enhance the densification and widen the sintering temperature window due to the increased viscosity of liquid phase and lowered temperature that the liquid phase emerges.…”

Section: Introductionmentioning

confidence: 99%

Excellent sintering ability of Bi(Mn2/3Sb1/3)O3-added (Bi1/2K1/2)TiO3 lead-free piezoceramics with high density and low dielectric loss

Guo

Zhu

Zheng

2019

J. Ceram. Soc. Japan

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By adding 1.5 mol.% Bi(Mn 2/3 Sb 1/3)O 3 (BMS), (Bi 1/2 K 1/2)TiO 3 (BKT) ceramics show an excellent sintering ability in conventional oxide sintering process. In a wide temperature range from 10201050°C, the 0.985BKT 0.015BMS (BKMS) ceramics demonstrate a super-high relative density of 98% and low dielectric loss tan ¤ of 0.017. Even though the temperature reaches to 1060°C, BKMS ceramics maintain high relative density over 95% other than being collapsed as the pure BKT did. Besides, the BKMS ceramics sintered at 1020 to 1050°C present adequately high electrical properties. The enhanced sintering ability of BKMS ceramics is attributed to the increased viscosity of liquid induced by Sb 5+ solving in the liquid phase during sintering. The work provides a way to realize the densification of BKT ceramics.

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Section: Introductionmentioning

confidence: 99%