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Title: Sonocatalyzed ammonothermal preparation of fine lithium niobate powders
Authors: A. Rujiwatra
N. Thammajak
Y. Chimupala
P. Laoratanakul
Keywords: Engineering
Issue Date: 1-Dec-2008
Abstract: The so-called sonocatalyzed ammonothermal technique has been developed for the preparation of lithium niobate fine powders from commercially as-received niobium pentoxide and lithium nitrate. The present work shows that the application of ultrasonic activation prior to the ammonothermal treatment can produce a single phase lithium niobate fine powder at a relatively low temperature of 220°C. The influences of Li-precursors, ammonia solution concentration, reaction temperature and time, as well as Li:Nb mole ratio - which is evidentially the most critical factor promoting a single phase formation - are discussed. © 2008 Trans Tech Publications, Switzerland.
ISSN: 10226680
Appears in Collections:CMUL: Journal Articles

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