Phase-separation and Nucleation in K2O-MgO-Al2O3-SiO2 Glass

Journal of Inorganic Materials

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Phase-separation and Nucleation in K₂O-MgO-Al₂O₃-SiO₂ Glass

LIU Ping; CHEN Xian-Qiu⁺

National Engineering Research Centre of Chemical Fertilizer Catalyst; Fuzhou University Fuzhou 350002 China;⁺Shanghai Institute Of Ceramics; Chinese Academy of Sciences Shanghai 200050 China

Received:1998-05-04 Revised:1998-06-29 Published:1999-04-20 Online:1999-04-20

Abstract

Abstract: The effect of droplet-like phase-separation on nucleation was studied by HREM and other analysis methods for K₂O-MgO-Al₂O₃-O₂ glass system containing fluorine or zirconium.It was observed that the nucleation began in the droplet phase firstly.The effect of phase-separation on nucleation,bulk nucleated crystallization and sequence of crystallization was analysed by means of Selected area electron diffraction,lattice fringes analysis and calculating distance between two crystal planes.

Key words: glass, phase-separation, nucleation, lattice fringes, electron diffraction

CLC Number:

TQ171

LIU Ping, CHEN Xian-Qiu. Phase-separation and Nucleation in K₂O-MgO-Al₂O₃-SiO₂ Glass[J]. Journal of Inorganic Materials.

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Phase-separation and Nucleation in K₂O-MgO-Al₂O₃-SiO₂ Glass

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