Two species/nonideal solution model for amorphous/amorphous phase transitions

Conference · Wed Dec 31 00:00:00 EST 1997

OSTI ID:580921

Moynihan, C T ^[1]

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1. Rensselaer Polytechnic Inst., Troy, NY (United States). Materials Science and Engineering Dept.

A simple macroscopic thermodynamic model for first order transitions between two amorphous phases in a one component liquid is reviewed, augmented and evaluated. The model presumes the existence in the liquid of two species, whose concentrations are temperature and pressure dependent and which form a solution with large, positive deviations from ideality. Application of the model to recent data indicates that water can undergo an amorphous/amorphous phase transition below a critical temperature T{sub c} of 217K and above a critical pressure P{sub c} of 380 atm.

• OSTI ID: 580921
• Report Number(s): CONF-961202-; ISBN 1-55899-359-2; TRN: IM9807%%93
• Resource Relation: Conference: 1996 Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 2-6 Dec 1996; Other Information: PBD: 1997; Related Information: Is Part Of Structure and dynamics of glasses and glass formers; Angell, C.A. [ed.] [Arizona State Univ., Tempe, AZ (United States)]; Ngai, K.L. [ed.] [Naval Research Lab., Washington, DC (United States)]; Kieffer, J. [ed.] [Univ. of Illinois, Urbana, IL (United States)]; Egami, T. [ed.] [Univ. of Pennsylvania, Philadelphia, PA (United States)]; Nienhaus, G.U. [ed.] [Univ. of Ulm (Germany)]; PB: 530 p.; Materials Research Society symposium proceedings, Volume 455
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PHASE TRANSFORMATIONS
WATER
MATHEMATICAL MODELS
AMORPHOUS STATE
ICE