The hollandite-related structure of Ba2Ti9O20

G. Grzinic; L. A. Bursill; David J. Smith

doi:10.1016/0022-4596(83)90004-X

The hollandite-related structure of Ba₂Ti₉O₂₀

G. Grzinic, L. A. Bursill, David J. Smith

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

The crystal structure of Ba₂Ti₉O₂₀ has been determined by comparison of experimental high-resolution electron micrographs with images simulated using structural models deduced from the micrographs in conjunction with crystallochemical principles. The structure consists of lamellae of hollandite-type structure alternating with BaTiO₃-like units, which effectively immobilize the Ba ions. This material should be relatively more leach resistant to attack by aqueous sodium chloride solutions. The structure determination clarifies the observation that this material has unique properties as a microwave resonator, compared with other barium and alkali titanate structures.

Original language	English (US)
Pages (from-to)	151-163
Number of pages	13
Journal	Journal of Solid State Chemistry
Volume	47
Issue number	2
DOIs	https://doi.org/10.1016/0022-4596(83)90004-X
State	Published - Apr 1983
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-4596(83)90004-X

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title = "The hollandite-related structure of Ba2Ti9O20",

abstract = "The crystal structure of Ba2Ti9O20 has been determined by comparison of experimental high-resolution electron micrographs with images simulated using structural models deduced from the micrographs in conjunction with crystallochemical principles. The structure consists of lamellae of hollandite-type structure alternating with BaTiO3-like units, which effectively immobilize the Ba ions. This material should be relatively more leach resistant to attack by aqueous sodium chloride solutions. The structure determination clarifies the observation that this material has unique properties as a microwave resonator, compared with other barium and alkali titanate structures.",

author = "G. Grzinic and Bursill, {L. A.} and Smith, {David J.}",

note = "Funding Information: This work was financially supported by the Australian Research Grants Committee, the University of Melbourne, and by the SERC (U.K.). G. Grzinic is grateful for the award of a University of Melbourne Research Scholarship.",

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doi = "10.1016/0022-4596(83)90004-X",

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AU - Grzinic, G.

AU - Bursill, L. A.

AU - Smith, David J.

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N2 - The crystal structure of Ba2Ti9O20 has been determined by comparison of experimental high-resolution electron micrographs with images simulated using structural models deduced from the micrographs in conjunction with crystallochemical principles. The structure consists of lamellae of hollandite-type structure alternating with BaTiO3-like units, which effectively immobilize the Ba ions. This material should be relatively more leach resistant to attack by aqueous sodium chloride solutions. The structure determination clarifies the observation that this material has unique properties as a microwave resonator, compared with other barium and alkali titanate structures.

AB - The crystal structure of Ba2Ti9O20 has been determined by comparison of experimental high-resolution electron micrographs with images simulated using structural models deduced from the micrographs in conjunction with crystallochemical principles. The structure consists of lamellae of hollandite-type structure alternating with BaTiO3-like units, which effectively immobilize the Ba ions. This material should be relatively more leach resistant to attack by aqueous sodium chloride solutions. The structure determination clarifies the observation that this material has unique properties as a microwave resonator, compared with other barium and alkali titanate structures.

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The hollandite-related structure of Ba₂Ti₉O₂₀

Abstract

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