Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties

被引：8

作者：

Nishiyama, Hiroshi ^{[1
]}

Martin, Alexander ^{[1
,2
]}

Hatano, Keiichi ^{[3
]}

Kishimoto, Sumiaki ^{[3
]}

Sasaki, Nobuhiro ^{[3
]}

Webber, Kyle G. ^{[2
]}

Kakimoto, Ken-ichi ^{[1
,4
]}

机构：

[1] Nagoya Inst Technol, Grad Sch Engn, Dept Life Sci & Appl Chem, Nagoya, Aichi 4668555, Japan

[2] Friedrich Alexander Univ, Dept Mat Sci & Engn, Erlangen Nurnberg FAU, Martensstr 5, D-91508 Erlangen, Germany

[3] TAIYO YUDEN CO LTD, R&D Ctr, 5607-2 Nakamuroda, Takasaki, Gumma 3703347, Japan

[4] Nagoya Inst Technol, Frontier Res Inst Mat Sci, Nagoya, Aichi 4668555, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2021年 / 129卷 / 03期

关键词：

Lead-free piezoceramics; Alkali volatilization; Electrical hardening; Ferroelasticity; LEAD-ZIRCONATE-TITANATE; PIEZOELECTRIC CERAMICS; BEHAVIOR; UNIPOLAR; FATIGUE;

D O I：

10.2109/jcersj2.20201

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

While lead-free (Li,Na,K)NbO3 piezoceramics have a high Curie temperature (T-C > 400 degrees C) and an excellent piezoelectric constant (d(33) > 200 pC/N), the process window regarding the sintering temperature and dwelling time is narrow. Inappropriate sintering conditions can induce the volatilization of A-site alkali ions, leading to a deterioration in dielectric and piezoelectric properties. However, the effect of alkali volatilization on the ferroelastic properties is still uncertain. In this study, (Li,Na,K)NbO3 piezoceramics were deliberately exposed to the sintering temperature for varying times to compare the susceptibility of the effect of alkali volatilization on the ferroelastic properties and compared to changes in the ferroelectric and ferroelastic and dielectric properties. (C) 2021 The Ceramic Society of Japan. All rights reserved.

引用

页码：127 / 134

页数：8

共 38 条

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