Magnesium dititanate (MgTi2O5) with pseudobrookite structure: a review

Yoshikazu Suzuki; Yutaka Shinoda

doi:10.1088/1468-6996/12/3/034301

Magnesium dititanate (MgTi₂O₅) with pseudobrookite structure: a review

Sci Technol Adv Mater. 2011 May 3;12(3):034301. doi: 10.1088/1468-6996/12/3/034301. eCollection 2011 Jun.

Authors

Yoshikazu Suzuki¹, Yutaka Shinoda²

Affiliations

¹ Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Graduate School of Pure and Applied Sciences, University of Tsukuba, Ibaraki, 305-8573, Japan.
² Secure Materials Center, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan.

Abstract

Magnesium dititanate (MgTi₂O₅, MT₂) has been synthesized since the early 1930s. It has the pseudobrookite structure (general formula Me₃O₅), corresponding to the Mg-enriched artificial endmember of the Fe₂TiO₅ (pseudobrookite)-FeTi₂O₅ (ferropseudobrookite)-Mg_0.5Fe_0.5Ti₂O₅ (armalcolite) solid solution. Since MgTi₂O₅ has relativity high thermal stability among pseudobrookite-type phases, it is expected to be a well-balanced low-thermal-expansion material. Here we review both the historical and recent studies on MgTi₂O₅, particularly on its crystal structure, cation order-disorder, physical properties and synthesis methods.

Keywords: MgTi2O5; armalcolite; karrooite; magnesium dititanate; pseudobrookite.

Publication types

Review