Core–shell grain structures and ferroelectric properties of Na0.5K0.5NbO3–LiTaO3–BiScO3 piezoelectric ceramics

Legislation arising from health and environmental concerns has intensified research into finding suitable alternatives to lead-based piezoceramics. Recently, solid solutions based on sodium potassium niobate (K,Na)NbO3 (KNN) have become one of the globally-important lead-free counterparts, due to th...

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Bibliographic Details
Published inData in brief Vol. 4; no. C; pp. 34 - 39
Main Authors Zhu, Fangyuan, Ward, Michael B., Li, Jing-Feng, Milne, Steven J.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier Inc 01.09.2015
Elsevier
Subjects
Core–shell structure
Data
Ferroelectric
Lead-free
Melting
NKN-based
TEM
Ferroelectric
NKN-based
Melting
Core–shell structure
TEM
Lead-free
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Summary:Legislation arising from health and environmental concerns has intensified research into finding suitable alternatives to lead-based piezoceramics. Recently, solid solutions based on sodium potassium niobate (K,Na)NbO3 (KNN) have become one of the globally-important lead-free counterparts, due to their favourable dielectric and piezoelectric properties. This data article provides information on the ferroelectric properties and core–shell grain structures for the system, (1−y)[(1−x)Na0.5K0.5NbO3 – xLiTaO3] – yBiScO3 (x=0–0.1, y=0.02, abbreviated as KNN–xLT–2BS). We show elemental analysis with aid of TEM spot-EDX to identify three-type grain-types in the KNN–LT–BS ternary system. Melting behaviour has been assessed using a tube furnace with build-in camera. Details for the ferroelectric properties and core–shell chemical segregation are illustrated.
ISSN:2352-3409
2352-3409
DOI:10.1016/j.dib.2015.04.002