@article{oai:sucra.repo.nii.ac.jp:00012976,
 author = {小林, 秀彦 and 荻野, 博幸 and 中村, 和正 and 森, 利之 and 山村, 博 and 三田村, 孝},
 issue = {1186},
 journal = {日本セラミックス協会学術論文誌},
 month = {},
 note = {http://ci.nii.ac.jp/naid/110002290617/ | http://ci.nii.ac.jp/naid/110002290617/, Sintered bodies of BaM_2O_4 (M : La, Nd, Sm, Gd, Ho or Y) with CaFe_2O_4 related structure were synthesized by sintering BaCO_3 M_2O_3 mixtures. The temperature de pendence of oxygen ionic conductivity and the relation ship between the ionic radius of M^<3+> ions in B sites and the crystal structure of BaM_2O_4 were investigated. The ionic conductivity type in BaM_2O_4 was divided into two groups; (a) BaLa_2O_4, BaNd_2O_4 and BaSm_2O_4 with ord er disorder transition and (b) BaGd_2O_4, BaHO_2O_4 and BaY_2O_4 without the transition. There were vacant spaces in the crystal structure of BaNd_2O_4 and BaSm_2O_4 with order disorder transition due to the dis tortion in the a axis direction of an oxygen octahedron. By assuming that the vacant space is an oxygen vacan cy, the ionic conductivity in BaLa_2O_4, BaNd_2O_4 and BaSln_2O_4 has been explained with a model of the order disorder transition for oxygen vacancies without sig nificant shifting of cations in the crystal lattice., rights: 社団法人日本セラミックス協会
rights: 本文データは学協会の許諾に基づきCiNiiから複製したものである
relation: IsVersionOf: http://ci.nii.ac.jp/naid/110002290617/, text, application/pdf},
 pages = {583--586},
 title = {BaCO_3-M_2O_3混合粉末(M : La, Nd, Sm, Gd, Ho, Y)から反応焼結により合成したBaM_20_4の秩序-無秩序転移},
 volume = {102},
 year = {1994},
 yomi = {コバヤシ, ヒデヒコ and オギノ, ヒロユキ and ナカムラ, カズマサ and モリ, トシユキ and アナムラ, ヒロシ and ミタムラ, タカシ}
}