Micro-structure of growth solid-liquid boundary layer of KTa1-xNbxO3 crystal | Zendy

Qingli Zhang | Zendy; Shaotang Yin | Zendy; You Jing-Lin | Zendy; Yuanyuan Wang | Zendy; Zhou Wen-Ping | Zendy; Wan Song-Ming | Zendy

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Micro-structure of growth solid-liquid boundary layer of KTa1-xNbxO3 crystal

Author(s) -

Qingli Zhang,

Shaotang Yin,

You Jing-Lin,

Yuanyuan Wang,

Zhou Wen-Ping,

Wan Song-Ming

Publication year - 2010

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.59.5085

Subject(s) - octahedron , materials science , crystallography , layer (electronics) , raman spectroscopy , crystal growth , crystal (programming language) , solid solution , crystal habit , crystal structure , chemistry , optics , nanotechnology , metallurgy , crystallization , organic chemistry , programming language , physics , computer science

Raman spectra of KTa1xNbxO3(KTN) single crystal,its melt, and the solid-liquid boundary layer in the growing process at different temperatures were measured in-situ. The structure transformation in KTN crystal growth process was investigated. The results showed that the [Ta/NbO3] entities came into solid-liquid boundary layer from KTN melt, and they were transformed to [Ta/NbO6] octahedron entities. And the structure of [Ta/NbO6] octahedron entity was just like that of KTN single cell. Regarding [Ta/NbO6] octahedron as growth units, the growth habit of KTN crystal in which the (100), (1-00), (010) and (01-0) faces are easily revealed was discussed. The thickness of the growth solid-liquid boundary layer of KTN crystal was about 80—90 μm.

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