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Remarks on the Thermodynamics of Sintering of Ceramics
Author(s) -
Skala L.,
Kenkre V. M.,
Weiser M. W.,
Katz J. D.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221620213
Subject(s) - metastability , sintering , materials science , thermodynamics , ceramic , boron carbide , phase transition , atmospheric temperature range , condensed matter physics , landau theory , metallurgy , physics , quantum mechanics
In the microwave sintering of some materials a rapid increase of their density is observed in a relatively small temperature range of about 100 K. This may be viewed as a transition from a metastable low density state to a more stable state with a density close to the maximum theoretical density. A thermodynamic description of this transition similar to the Landau theory of phase transitions is suggested and applied to the sintering of boron carbide and alumina.