Transcription of Immiscibility/Phase Separation: Glass Microstructure
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Immiscibility/Phase Separation: Glass Microstructure
Cer103 NotesShelby Chapter BrowImmiscibility/Phase SeparationImmiscibility/Phase separation : Glass MicrostructureDifferent liquids have different properties and so, when combined, some will: Form a single, homogeneous mixture miscible Alcohol and water- alcohol is hydrophilic- -OH terminated Not mix, heterogeneous immiscible or phase separated Oil and water- oil is hydrophobicSimilar processes occur in oxide melts: some oxide combinations are miscible,some are of glassy component 'A' dispersed in glassymatrix 'B'.Phase separation occurs in highly viscous samples,'frozen in' on cooling below Tg. (Initial viscosity has tobe low enough for material to re-arrange intoseparate regions).Why do certain compositions exhibit phase separation ?
Cer103 Notes Shelby Chapter 4 4-1 R.K. Brow Immiscibility/Phase Separation Immiscibility/Phase Separation: Glass Microstructure Different liquids have different properties and so, when combined, some will:
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