title: Cubic ice can be formed directly in the water phase of vitrified aqueous solutions.
abstract: This study addresses the possibility that ice-Ic may form spontaneously and directly during the cooling of previously freeze-concentrated aqueous solutions, at temperatures where the residual unfrozen water is likely to exist in small, isolated domains. It is shown that on cooling a dilute aqueous glucose solution, ice-Ih crystallises initially, but when the solution has been freeze-concentrated to ca.10 mol %, further cooling results in the slow nucleation and growth of ice-Ic in the residual water domains, rather than on the pre-existing ice-Ih crystal surfaces.
authors.affiliation: School of Bionics, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo, Japan.
authors.forename: Kazuhito
authors.initials: K
authors.lastname: Kajiwara
authors.forename: Pariya
authors.initials: P
authors.lastname: Thanatuksom
authors.forename: Norio
authors.initials: N
authors.lastname: Murase
authors.forename: Felix
authors.initials: F
authors.lastname: Franks
mesh_terms: D003460:Crystallization; D005615:Freezing; D005947:Glucose; D007053:Ice; D012996:Solutions
chemical_list: D007053:Ice; D012996:Solutions; D005947:Glucose