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	Compositional dependence of piezoelectric properties in NaxK1-xNbO3 lead-free ceramics prepared by spark plasma sintering
	Zhang, BP ; Li, JF ; Wang, K ; Zhang, HL
	2010-05-10 ; 2010-05-10
关键词	SODIUM-POTASSIUM NIOBATE PHASE-TRANSITION SOLID-SOLUTIONS Materials Science, Ceramics
中文摘要	Lead-free piezoelectric NaxK1-xNbO3 (x=20-80 mol%) ceramics were fabricated using spark plasma sintering at a low temperature (920 degrees C). All the NaxK1-xNbO3 ceramics showed a similar orthorhombic phase structure, while the corresponding lattice parameters decreased from the KNbO3 side to the NaNbO3 side with increasing Na content. A discontinuous change in lattice parameter close to composition of 60 mol% Na indicated the presence of a transitional area that is similar to the morphotropic phase boundary (MPB) in NaxK1-xNbO3 ceramics. The sintered density of the NaxK1-xNbO3 ceramics decreased with increasing Na content, from a relative density of 99% for the K-rich side to 92% for the Na-rich side. The piezoelectric constant d(33) and planar mode electromechanical coupling coefficient k(p) showed a maximum value of 148 pC/N and 38.9%, respectively, due to the similar MPB effects in the PZT system.
语种	英语 ; 英语
出版者	BLACKWELL PUBLISHING ; OXFORD ; 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21382]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, BP,Li, JF,Wang, K,et al. Compositional dependence of piezoelectric properties in NaxK1-xNbO3 lead-free ceramics prepared by spark plasma sintering[J],2010, 2010.
APA	Zhang, BP,Li, JF,Wang, K,&Zhang, HL.(2010).Compositional dependence of piezoelectric properties in NaxK1-xNbO3 lead-free ceramics prepared by spark plasma sintering..
MLA	Zhang, BP,et al."Compositional dependence of piezoelectric properties in NaxK1-xNbO3 lead-free ceramics prepared by spark plasma sintering".(2010).

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