Preparation and piezoelectric properties of potassium sodium niobate glass ceramics

doi:10.1088/1674-1056/24/6/067701

中国物理B ›› 2015, Vol. 24 ›› Issue (6): 67701-067701.doi: 10.1088/1674-1056/24/6/067701

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Preparation and piezoelectric properties of potassium sodium niobate glass ceramics

姜珊^a, 王炫明^b, 李佳宇^c, 张勇^a, 郑涛^a, 吕景文^a

a Material Science and Engineering Institute, Changchun University of Science and Technology, Changchun 130022, China;
b Beijing University of Posts and Telecommunications, Beijing 100876, China;
c China Building Materials Academy, Beijing 100024, China

收稿日期:2014-12-21 修回日期:2015-01-10 出版日期:2015-06-05 发布日期:2015-06-05

Preparation and piezoelectric properties of potassium sodium niobate glass ceramics

Jiang Shan (姜珊)^a, Wang Xuan-Ming (王炫明)^b, Li Jia-Yu (李佳宇)^c, Zhang Yong (张勇)^a, Zheng Tao (郑涛)^a, Lv Jing-Wen (吕景文)^a

a Material Science and Engineering Institute, Changchun University of Science and Technology, Changchun 130022, China;
b Beijing University of Posts and Telecommunications, Beijing 100876, China;
c China Building Materials Academy, Beijing 100024, China

Received:2014-12-21 Revised:2015-01-10 Online:2015-06-05 Published:2015-06-05
Contact: Lv Jing-Wen E-mail:ljwcc@126.com
About author:77.84.-s; 78.20.Ci; 78.55.Hx

摘要/Abstract

摘要： This paper describes the preparation of a piezoelectric glass ceramic material from potassium sodium niobate (K_0.5Na_0.5NbO₃; KNN) using a novel melting method. The effects of the subsequent heat-treatment on the optical, thermal, electrical, and mechanical properties of the material are carefully examined, and its crystal structure and surface morphology are characterized respectively by x-ray diffraction and scanning electron microscopy. This new material has a much higher piezoelectric coefficient (163 pC·N^-1) than traditional piezoelectric ceramics (131 pC·N^-1). On this basis therefore, a strategy for the future study and development of lead-free KNN-based piezoelectric glass ceramics is proposed.

关键词: potassium sodium niobate, dielectric constant, piezoelectric constant

Abstract: This paper describes the preparation of a piezoelectric glass ceramic material from potassium sodium niobate (K_0.5Na_0.5NbO₃; KNN) using a novel melting method. The effects of the subsequent heat-treatment on the optical, thermal, electrical, and mechanical properties of the material are carefully examined, and its crystal structure and surface morphology are characterized respectively by x-ray diffraction and scanning electron microscopy. This new material has a much higher piezoelectric coefficient (163 pC·N^-1) than traditional piezoelectric ceramics (131 pC·N^-1). On this basis therefore, a strategy for the future study and development of lead-free KNN-based piezoelectric glass ceramics is proposed.

Key words: potassium sodium niobate, dielectric constant, piezoelectric constant

中图分类号: (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)

77.84.-s

78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 78.55.Hx (Other solid inorganic materials)

姜珊, 王炫明, 李佳宇, 张勇, 郑涛, 吕景文. Preparation and piezoelectric properties of potassium sodium niobate glass ceramics[J]. 中国物理B, 2015, 24(6): 67701-067701.

Jiang Shan (姜珊), Wang Xuan-Ming (王炫明), Li Jia-Yu (李佳宇), Zhang Yong (张勇), Zheng Tao (郑涛), Lv Jing-Wen (吕景文). Preparation and piezoelectric properties of potassium sodium niobate glass ceramics[J]. Chin. Phys. B, 2015, 24(6): 67701-067701.

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Preparation and piezoelectric properties of potassium sodium niobate glass ceramics

Preparation and piezoelectric properties of potassium sodium niobate glass ceramics

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