title: Magnesium dititanate (MgTi2O5) with pseudobrookite structure: a review.
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)-Mg0.5Fe0.5Ti2O5(armalcolite) solid solution. Since MgTi2O5has 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.
authors.affiliation: 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.
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Suzuki
authors.affiliation: Secure Materials Center, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Shinoda
keywords: MgTi2O5; armalcolite; karrooite; magnesium dititanate; pseudobrookite