@article{oai:sucra.repo.nii.ac.jp:00012986,
 author = {倉持, 豪人 and 小林, 秀彦 and 森, 利之 and 山村, 博 and 三田村, 孝},
 issue = {1165},
 journal = {日本セラミックス協会学術論文誌},
 month = {},
 note = {http://ci.nii.ac.jp/naid/110002290089/ | http://ci.nii.ac.jp/naid/110002290089/, Ca_<0.20>Zr_<0.80-x>Ti_xO_y composition (x=0.04-0.25) powders, whose phases were the tazheranite (x=0.04-0.10) and the calzirtite (x=0.20) of single phases, were prepared at 1300℃ for 10h by the solid phase reaction. The range of the tazheranite composition was broadened up to x= 0.15 by firing them at 1500℃ for 4-10h. The conductivity of the sintered bodies, fabricated at 1500℃ for 4h in x=0.04-0.15 and 10h in x=0.20, was measured at 400°-900℃ using the complex impedance method in the air. The activation energies of the conductivity were 120-130 kJ/mol, thus it is presumed that the mechanism of electric conduction was dominated by an oxygen ion conduction in the range of these temperatures. In the case of x=0.04-0.15 composition samples, the resistance of grain decreased with an increase of x, while that of grain boundary increased. With regard to the calzirtite (x=0.20) composition sintered body, it is made ascertained that the specific resistance took a figure up one place. The results have suggested that the elevation of conductivity is due to the increase of dissolved TiO_2 amount, the valence deviation of Ti, the change of grain size and the segregation of a trace amount of calzirtite phase at the grain boundaries of the tazheranite of single phase., 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/110002290089/, text, application/pdf},
 pages = {1135--1139},
 title = {固相法によるTazheraniteの粉末合成と導電性},
 volume = {100},
 year = {1992},
 yomi = {クラモチ, ヒデト and コバヤシ, ヒデヒコ and モリ, トシユキ and ヤマムラ, ヒロシ and ミタムラ, タカシ}
}