@article{oai:niit.repo.nii.ac.jp:00000076,
 author = {Kitayama, Kenzo and Kitagawa, Daisuke and Sasaki, Hiroshi},
 journal = {新潟工科大学研究紀要},
 month = {Dec},
 note = {Phase equilibrium is established in a system Sm-Co-O at 1000℃ by changing the oxygen partial pressure from 0 to 13.00 in-log (Po_2/atm), and a phase diagram is represented for a Sm_2O_3-Co-Co_2O_3 system. Under the experimental conditions, Sm_2O_3, CoO, Co, and SmCoO_3 phases are present. But Sm_2CoO_4 and Sm_4Co_3O_10 phases are not stable in the system. A slight nonstoichiometry is found in CoO and SmCoO_3 phases, and the nonstoichiometry of SmCoO_3 is discussed with respect to the oxygen partial pressure, and the activities of the components in the solid solutions are calculated using the composition-oxygen partial pressure relations obtained. Lattice constants of SmCoO_3, made in different oxygen partial pressures, are determined and compared with those values prepared at 1200℃. Standard Gibbs energy changes of the reactions in the phase diagram are calculated with the oxygen partial pressure in equilibrium with solids, and these are compared with previous values.},
 pages = {21--26},
 title = {Thermogravimetric Study of the Ln2O3-Co-Co2O3 System Ln=Sm at 1000℃},
 volume = {6},
 year = {2001}
}