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Microstructure studies of potassium hexatitanate whiskers

Published online by Cambridge University Press:  31 January 2011

G. L. Li ,
M. Liu  and
G. H. Wang
G. L. Li
Affiliation:
Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China, and Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
M. Liu
Affiliation:
Department of Metal Materials, Sichuan University (West), Chengdu 610065, People's Republic of China
G. H. Wang
Affiliation:
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
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Abstract

Microstructures of potassium hexatitanate (K2Ti6O13) whiskers prepared by calcination of KF and TiO2 mixture were studied through high-resolution electron microscopy. The rod axis of a K2Ti6O13 whisker is along the [010] direction. These whiskers normally have a lamellar structure in their longitudinal direction, and adjacent lamellae usually have the same crystallographic orientation. Each lamella might be further divided into several fine layers with a width on the nanometer scale in the same crystallographic orientation. The whisker can be split in the longitudinal direction along either the boundary between two lamellae or the weak binding crystal plane, such as (100) and (201) planes. The mechanisms for the formation of lamella and layer structures and for the splitting of whiskers are discussed.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 12 , December 2001 , pp. 3614 - 3620
Copyright
Copyright © Materials Research Society 2001

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