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Formation of AlVO 4 Solid Solution from Alkoxides
Author(s) -
Yamaguchi Osamu,
Uegaki Tatsuji,
Miyata Yutaka,
Shimizu Kiyoshi
Publication year - 1987
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.1151-2916.1987.tb05725.x
Subject(s) - triclinic crystal system , octahedron , crystallography , solid solution , tetrahedron , amorphous solid , chemistry , materials science , analytical chemistry (journal) , crystal structure , metallurgy , organic chemistry
Solid solutions of AlVO 4 crystallize at lower temperatures than amorphous materials between 50 and 70 mol% Al 2 O 3 prepared by the simultaneous hydrolysis of aluminum and vanadyl alkoxides. They decompose into α‐Al 2 O 3 , and V 2 O 5 , at 775° to 800°C. The compound AlVO 4 prepared from 50 mol% Al 2 O 3 has a triclinic unit cell with a = 0.6471 nm, b = 0.7742 nm, c = 0.9084 nm, α= 96.848°, β= 105.825°, and γ= 101.399°. The volume of the unit cell increases continuously with increases in Al 2 O 3 content. The structure contains tetrahedral AlO 4 , octahedral AlO 6 , and tetrahedral VO 4 groups.