Bismuth titanate
![]() Bi12TiO20 crystal[1] | |
![]() Bi12TiO20 crystal structure[2] | |
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Other names Bismuth titanium oxide, dodecabismuth titanate[3] | |
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Properties | |
Chemical formula | Bi12TiO20 |
Molar mass | 2875.62 |
Odor | odorless |
Density | 9.03 g/cm3[2] |
Melting point | 875 °C (1,607 °F; 1,148 K) Decomposes to Bi4Ti3O12 and Bi2O3[4] |
Solubility in water | insoluble |
Structure | |
Crystal structure | body-centered cubic, cI66[4][2] |
Space group | I23, No. 197 |
Related compounds | |
Other cations | Bismuth silicon oxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
![]() Bi4Ti3O12 crystal structure[5] | |
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Other names Bismuth titanium oxide | |
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Bi4Ti3O12 | |
Molar mass | 1171.5 |
Odor | odorless |
Density | 7.95 g/cm3[5] |
insoluble | |
Band gap | 3.5 eV |
Structure | |
Orthorhombic, oS76[5] | |
Aba2, No. 41 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
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Bi2O7Ti2 | |
Molar mass | 625.688 g·mol−1 |
Odor | odorless |
insoluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
Bismuth titanate or bismuth titanium oxide is a solid inorganic compound of bismuth, titanium and oxygen with the chemical formula of Bi12TiO20, Bi 4Ti3O12 or Bi2Ti2O7.
Synthesis
Bismuth titanate ceramics can be produced by heating a mixture of bismuth and titanium oxides. Bi12TiO20 forms at 730–850 °C, and melts when the temperature is raised above 875 °C, decomposing in the melt to Bi4Ti3O12 and Bi2O3.[4] Millimeter-sized single crystals of Bi12TiO20 can be grown by the Czochralski process, from the molten phase at 880–900 °C.[1]
Properties and applications
Bismuth titanates exhibit electrooptical effect and photorefractive effect, that is, a reversible change in the refractive index under applied electric field or illumination, respectively. Consequently, they have potential applications in reversible recording media for real-time holography or image processing applications.[4][1]
See also
References
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- ^ a b c Shen, Chuanying; Zhang, Huaijin; Zhang, Yuanyuan; Xu, Honghao; Yu, Haohai; Wang, Jiyang; Zhang, Shujun (2014). "Orientation and Temperature Dependence of Piezoelectric Properties for Sillenite-Type Bi12TiO20 and Bi12SiO20 Single Crystals". Crystals. 4 (2): 141. doi:10.3390/cryst4020141.
- ^ a b c Efendiev, Sh. M.; Kulieva, T. Z.; Lomonov, V. A.; Chiragov, M. I.; Grandolfo, M.; Vecchia, P. (1982). "Crystal Structure of Bismuth Titanium Oxide Bi12TiO20". Physica Status Solidi A. 74 (1): K17–K21. Bibcode:1982PSSAR..74...17E. doi:10.1002/pssa.2210740148.
- ^ Yaws, Carl L. (2015). The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics. Elsevier Science. p. 698. ISBN 978-0-12-801146-1.
- ^ a b c d Santos, D. J.; Barbosa, L. B.; Silva, R. S.; MacEdo, Z. S. (2013). "Fabrication and Electrical Characterization of Translucent Bi12TiO20 Ceramics". Advances in Condensed Matter Physics. 2013: 1–7. doi:10.1155/2013/536754.
- ^ a b c Van Uitert, L. G.; Egerton, L. (1961). "Bismuth Titanate. A Ferroelectric". Journal of Applied Physics. 32 (5): 959. Bibcode:1961JAP....32..959V. doi:10.1063/1.1736142.
- v
- t
- e
- Bi(CH3COO)3
- BiBr3
- BiCl3
- Bi4Ge3O12
- BiOCl
- BiOI
- BiONO3
- BiAs
- Bi2Se3
- Bi12SiO20
- Bi2O2(CO3)
- Bi2Te3
- BiF3
- BiI3
- Bi2(SO4)3
- Bi(NO3)3
- BiPO4
- BiVO4
- Bi(IO3)3
- Bi2O3
- BiP
- BiMn
- Bi(OH)3
- Bi2S3
- BiH3
- BiFeO3
- subsalicylate
- subcitrate
- C7H5BiO6
Organobismuth(III) |
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- NaBiO3
- Pb(BiO3)2
- BiF5
- Bi2O5
Organobismuth(V) |
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