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Polygonal Single‐Crystal Aluminum Borate Microtubes
Author(s) -
Yang Weiyou,
Xie Zhipeng,
Ma Jingtao,
Miao Hezhuo,
Luo Jiesheng,
Zhang Ligong,
An Linan
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00084.x
Subject(s) - whiskers , materials science , calcination , boron , aluminium , boron nitride , hexagonal crystal system , hexagonal boron nitride , whisker , chemical engineering , crystal (programming language) , nanotechnology , composite material , crystallography , mineralogy , chemistry , biochemistry , graphene , organic chemistry , engineering , catalysis , programming language , computer science
In this paper we report the synthesis of polygonal single‐crystal aluminum borate microtubes by the direct calcination of alumina and boron nitride powders in air. The diameters of the obtained tubes vary between 1 and 15 μm; and the lengths are in the range of tens to hundreds of micrometers. The cross‐sections of the microtubes are in the shapes of rectangular, hexagonal, and quasi‐circle. A new solid–liquid–solid growth mechanism was proposed to account for the formation of microtubes instead of whiskers.