High-temperature calorimetry of zirconia: Heat capacity and thermodynamics of the monoclinic–tetragonal phase transition |
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| Institution: | 1. Manufacturing Technology & Engineering, Corning Incorporated, Corning, NY 14831, USA;2. Science & Technology, Corning Research and Development Corporation, Corning, NY 14831, USA;1. School of Science and Technology, International Hellenic University, Thessaloniki, Greece;2. Dept. de Electrnica y Tecnologa de Computadores, Universidad de Granada, Spain;3. Institut de Microelectrnica de Barcelona, IMB-CNM, CSIC, Barcelona, Spain;4. Electrical Engineering and Computer Science Department, University of California, Berkeley, CA, USA;5. Physics Department, University of Balearic Islands, Balearic Islands, Spain;6. Institute of Circuits and Systems, Technische Universitt Dresden, Dresden, Germany |
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| Abstract: | The high-temperature heat capacity of zirconia was directly measured by differential scanning calorimetry between T = (1050 and 1700) K and derived from the heat content measured by transposed temperature drop calorimetry between T = (970 and 1770) K, including the monoclinic–tetragonal (m–t) phase transition region. The enthalpy and entropy of the m–t phase transition are (5.43 ± 0.31) kJ · mol−1 and (3.69 ± 0.21) J · K−1 · mol−1, respectively. Values of thermodynamic functions are provided from room temperature to 2000 K. |
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