CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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 |
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Abstract This paper describes the preparation of a piezoelectric glass ceramic material from potassium sodium niobate (K0.5Na0.5NbO3; 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.
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Received: 21 December 2014
Revised: 10 January 2015
Accepted manuscript online:
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PACS:
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77.84.-s
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(Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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78.55.Hx
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(Other solid inorganic materials)
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Corresponding Authors:
Lv Jing-Wen
E-mail: ljwcc@126.com
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About author: 77.84.-s; 78.20.Ci; 78.55.Hx |
Cite this article:
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 2015 Chin. Phys. B 24 067701
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