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Details van artikel 33 van 83 gevonden artikelen
| Titel: |
HIGH – TEMPERATURE THERMODYNAMIC DATA OF SOME PEROVSKITE-TYPE COMPOUNDS BASED ON DOPED LANTHANUM MANGANITES AND LANTHANUM CHROMITES |
| Auteur: |
Speranta Tanasescu Cornelia Marinescu Anca Orasanu |
| Verschenen in: |
Analele Universitatii Bucuresti. Chimie |
| Paginering: | Jaargang XI (2002) nr. I pagina's 155-162 |
| Jaar: |
2002 |
| Inhoud: |
The thermodynamic properties of the lanthanum manganites and lanthanum chromites (ABO3perovskite structure) are strongly affected not only by the A-site substituents, but also by theoxygen nonstoichiometry, as well as by the partial substitution of Mn or Cr on the B-site. It is theaim of this paper to make new measurements by using the solid electrolyte galvanic cells methodin order to determine the effect of the dopants on the thermodynamic properties. The relativepartial molar free energies, enthalpies and entropies of oxygen dissolution in the perovskitephase, as well as the equilibrium oxygen partial pressures were determined as function ofcomposition and temperature in the range of 1073÷1273 K. |
| Uitgever: |
Ars Docendi Publishing House (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 33 van 83 gevonden artikelen
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