Details

Autor(en) / Beteiligte

• Han, Bing-yuan
• Khoroshilov, Andrey V.
• Tyurin, Alexander V.
• Baranchikov, Alexander E.
• Razumov, Mikhail I.
• Ivanova, Olga S.
• Gavrichev, Konstantin S.
• Ivanov, Vladimir K.

Titel

WO3 thermodynamic properties at 80–1256 K revisited

Ist Teil von

• Journal of thermal analysis and calorimetry, 2020-11, Vol.142 (4), p.1533-1543

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2020

Link zum Volltext

Quelle

SpringerLink

Beschreibungen/Notizen

• Thermodynamic properties (heat capacity C p , entropy S °, enthalpy change Δ H ° and reduced Gibbs energy Δ Φ °) of crystalline WO 3 in a temperature range of 80–1256 K were refined using two complementary calorimetric methods, namely differential scanning calorimetry and adiabatic vacuum calorimetry. Enthalpy changes during a number of successive phase transitions in WO 3 were calculated from differential scanning calorimetry data in both heating and cooling regimes and compared to previously reported values. For the first time, enthalpy changes for the orthorhombic to monoclinic and monoclinic to tetragonal high-temperature phase transitions in WO 3 were estimated.