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Preparation and Unit‐Cell Parameters of Single Crystals of Ba 2 Ti 9 0 20
Author(s) -
O'BRYAN H. M.,
GRODKIEWICZ W. H.,
BERNSTEIN J. L.
Publication year - 1980
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.1151-2916.1980.tb10727.x
Subject(s) - monoclinic crystal system , crystallography , group (periodic table) , materials science , mineralogy , crystal structure , analytical chemistry (journal) , chemistry , organic chemistry , chromatography
Ba 2 Ti 9 O 20 crystallizes in the monoclinic system with α= l.4818(5) nm, b = 1.4283(6), and c = 0.7109(2) with β = 98.37°±0.07°. The most likely space group is P 2 1 / m , Z = 4 with a calculated density 4.58 g/cm 3 . The powder pattern was indexed. The Ba 2 Ti 9 O 20 crystals form as stellated groups when melts of BaCl 2 + 20 to 50% TiO 2 cool from 1275°C.