Premium
Facile Synthesis of Lithium Niobate Squares by a Combustion Route
Author(s) -
Liu Meinan,
Xue Dongfeng,
Luo Chao
Publication year - 2006
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.1551-2916.2006.00950.x
Subject(s) - lithium niobate , lithium (medication) , nucleation , niobium , oxide , crystallization , inorganic chemistry , niobium oxide , combustion , ion , materials science , chemistry , organic chemistry , medicine , optoelectronics , endocrinology
A combustion synthesis of lithium niobate (LN) squares from activated niobium oxide (Nb 2 O 5 · n H 2 O) and Li 2 CO 3 was studied to understand all the chemical reactions involved, and the nucleation and square‐growth mechanisms. It was found that first the lithium ions react with the fuel (urea), then niobium ions of Nb 2 O 5 · n H 2 O begin a continuous reaction with the fuel to form metal‐organic complexes. LN nuclei are formed by the solid‐state reaction of Li‐ and Nb‐organic complexes at 430°C. Lithium niobate squares are obtained in the crystallization stage at 700°C, which go on to grow into larger squares at 850°C because of the agglomeration effect.