CrO2-Cr2O3 Phase Boundary Under High O2 Pressures |
| |
| Authors: | YASUO SHIBASAKI,FUMIKAZU KANAMARU,MITSUE KOIZUMI,SHOICHI KUME &dagger |
| |
| Affiliation: | Osaka University, Osaka, Japan |
| |
| Abstract: | The phase boundary between CrO2 and Cr2O3 was reinvestigated under high O2 pressures by using a new type of gas compressor. The boundary curve can be represented as log Po2= 7.16-(3579/ T ). Using the observed data, Δ G °, Δ H °, and Δ S ° for the reaction 2CrO2⇋Cr2O3+½O2 were calculated to be: Δ G °= -(1.55/100) T +7.60 kcal/mol, Δ H °= -8.19 kcal/mol, and Δ S °= (-15.8/ T )+0.0155 kcal/mol. |
| |
| Keywords: | |
|
|
