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Watanabe, Masashi; Seki, Takayuki*
Materials Science & Engineering B, 272, p.115369_1 - 115369_6, 2021/10
Times Cited Count：1 Percentile：7.92(Materials Science, Multidisciplinary)The effect of oxygen non-stoichiometry on the initial sintering behavior of CeO
was investigated. It was found that the initial sintering of the stoichiometric and hypo-stoichiometric composition was controlled by the grain boundary diffusion. The activation energies of cation diffusion were derived from initial sintering data. Moreover, it is suggested that the cation diffusion was caused by a vacancy mechanism.
Tonegawa, Toru*; Ikoma, Toshiyuki*; Suetsugu, Yasushi*; Igawa, Naoki; Matsushita, Yoshitaka*; Yoshioka, Tomohiko*; Hanagata, Nobutaka*; Tanaka, Junzo*
Materials Science & Engineering B, 173(1-3), p.171 - 175, 2010/10
Times Cited Count：11 Percentile：46.11(Materials Science, Multidisciplinary)The thermal expansion and crystal structure of A-type carbonate apatite with the monoclinic symmetry was investigated using the neutron powder diffraction at room temperature, 200, 300, 400 and 500
C. The 
-axis and 
-axis lattice parameters were 0.9568 and 0.6868 nm at room temperature, and those were linearly increased with the increase of temperature. It was found that the linear thermal expansion coefficient of -axis was 1.31
10
/C and -axis 8.0710
/C.
Nakagawa, Satoko*; Sone, Yoshitsugu*; Tajima, Michio*; Oshima, Takeshi; Ito, Hisayoshi
Materials Science & Engineering B, 134(2-3), p.172 - 175, 2006/10
Times Cited Count：1 Percentile：6.64(Materials Science, Multidisciplinary)no abstracts in English
