Investigation into the formation of phases with a Ba2Ti9O20-type structure in the BaO-TiO2and BaO-SrO-TiO2systems
✍ Scribed by L. F. Grigor’eva; S. A. Petrov; O. Yu. Sinel’shchikova; I. A. Drozdova; V. V. Gusarov
- Book ID
- 111467811
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2007
- Tongue
- English
- Weight
- 240 KB
- Volume
- 33
- Category
- Article
- ISSN
- 1087-6596
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Crystallographic studies and refinement of a native multilayered phase (Ba 42 Ti 51 Fe 20 O 174 ), occurring in the BaO-TiO 2 -Fe 2 O 3 system for a Ba:Ti:Fe composition close to 2:2:1, were undertaken using synchrotron X-ray powder diffraction. In this area of the BaO-TiO 2 -Fe 2 O 3 phase diagram,
Single crystals of Ba 6 Fe 45 Ti 17 O 106 and BaFe 11 Ti 3 O 23 were obtained as major and minor coproducts, respectively, by slowcooling an off-stoichiometric BaO:Fe 2 O 3 :TiO 2 melt. The former compound exhibits variable stoichiometry, Ba 6 Fe 48؊x Ti 14؉x O 106 , with the Fe:Ti ratio dependent u