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Growth of lithium borate crystals from the vitreous state

Published online by Cambridge University Press:  03 March 2011

T. Katsumata ,
T. Yoshimura ,
K. Kanazawa  and
H. Aizawa
T. Katsumata
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Toyo University, 2100 Kujirai Nakanodai, Kawagoe, Saitama 350, Japan
T. Yoshimura
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Toyo University, 2100 Kujirai Nakanodai, Kawagoe, Saitama 350, Japan
K. Kanazawa
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Toyo University, 2100 Kujirai Nakanodai, Kawagoe, Saitama 350, Japan
H. Aizawa
Affiliation:
Department of Applied Chemistry, Faculty of Engineering, Toyo University, 2100 Kujirai Nakanodai, Kawagoe, Saitama 350, Japan
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Abstract

The morphology and the growth mechanism of lithium borate crystals from the vitreous state have been studied for various compositions, X = B/(Li + B), from 0.62 to 0.75. Crystalline phases and morphology of grown crystals varied with the composition. Octahedral and/or spherical Li2B4O7 crystals are seen in the specimen with X = 0.62, 0.64, 0.67, and 0.68. The spherical crystal is composed of an octahedral core and fibrous crystals. The size of the core varied with the composition of the starting glass, X. The fibrous crystal growth is supposed to arise from the morphological instability due to the compositional variation caused by the solute pileup at the growth interface.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 8 , August 1994 , pp. 2051 - 2056
Copyright
Copyright © Materials Research Society 1994

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References

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