Electrical conductivity and chemical diffusion coefficient of Sr-doped lanthanum chromites
作者： I Yasuda
DOI: 10.1016/0167-2738(95)00136-T
关键词: Diffusion 、 Conductivity 、 Vacancy defect 、 Analytical chemistry 、 Effective diffusion coefficient 、 Grain boundary diffusion coefficient 、 Lanthanum 、 Chemistry 、 Inorganic chemistry 、 Electrical resistivity and conductivity 、 Ambipolar diffusion
摘要: Abstract The electrical conductivity and chemical diffusion coefficient of Sr-doped lanthanum chromites were measured as a function oxygen partial pressure ( P o 2 ) temperature, the results discussed in light defect chemistry. was independent proportion to Sr-content at high , while low decreased exponentially with decrease . dependence reasonably interpreted by simple point model which Sr′ La Cr v .. are assumed predominant species. derived from time after an abrupt change atmosphere increased elucidated combination ambipolar theory analysis. vacancy calculated concentration not too concentrations, suggesting that vacancies non-interactive free.
elsevier.com
sci-hub.se 参考文章(13)
N. Sakai, T. Kawada, H. Yokokawa, M. Dokiya, T. Iwata, Sinterability and electrical conductivity of calcium-doped lanthanum chromites Journal of Materials Science. ,vol. 25, pp. 4531- 4534 ,(1990) , 10.1007/BF00581119
I. Yasuda, M. Hishinuma, Chemical Diffusion in Polycrystalline Calcium-Doped Lanthanum Chromites Journal of Solid State Chemistry. ,vol. 115, pp. 152- 157 ,(1995) , 10.1006/JSSC.1995.1114
K. P. Bansal, S. Kumari, B. K. Das, G. C. Jain, On some transport properties of strontium-doped lanthanum chromite ceramics Journal of Materials Science. ,vol. 18, pp. 2095- 2100 ,(1983) , 10.1007/BF00555003
Isamu Yasuda, Tomoji Hikita, Precise Determination of the Chemical Diffusion Coefficient of Calcium‐Doped Lanthanum Chromites by Means of Electrical Conductivity Relaxation Journal of The Electrochemical Society. ,vol. 141, pp. 1268- 1273 ,(1994) , 10.1149/1.2054908
P. Sujatha Devi, M. Subba Rao, Preparation, structure, and properties of strontium-doped lanthanum chromites: La1−xSrxCrO3 Journal of Solid State Chemistry. ,vol. 98, pp. 237- 244 ,(1992) , 10.1016/S0022-4596(05)80231-2
Isamu Yasuda, Tomoji Hikita, Electrical Conductivity and Defect Structure of Calcium‐Doped Lanthanum Chromites Journal of The Electrochemical Society. ,vol. 140, pp. 1699- 1704 ,(1993) , 10.1149/1.2221626
Takamasa Ishigaki, Shigeru Yamauchi, Kohji Kishio, Junichiro Mizusaki, Kazuo Fueki, Diffusion of oxide ion vacancies in perovskite-type oxides Journal of Solid State Chemistry. ,vol. 73, pp. 179- 187 ,(1988) , 10.1016/0022-4596(88)90067-9
I. Yasuda, T. Hikita, Formation of calcium chromate hydroxylapatite on the surface of a calcium-doped lanthanum chromite sintered body Journal of Materials Science. ,vol. 29, pp. 2801- 2805 ,(1994) , 10.1007/BF00356836
David Emin, T Holstein, Studies of small-polaron motion IV. Adiabatic theory of the Hall effect Annals of Physics. ,vol. 53, pp. 439- 520 ,(1969) , 10.1016/0003-4916(69)90034-7
J MIZUSAKI, S YAMAUCHI, K FUEKI, A ISHIKAWA, Nonstoichiometry of the perovskite-type oxide La1−xSrxCrO3−δ Solid State Ionics. ,vol. 12, pp. 119- 124 ,(1984) , 10.1016/0167-2738(84)90138-3