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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.120  No.1407 (November) (2012)  >  pp.509-512

Journal of the Ceramic Society of Japan
<<Previous article Vol.120  No.1407 (November) (2012)   pp.509 - 512 Next article>>

Surface crystallization of stoichiometric glass with Bi2ZnB2O7 crystal using ultrasonic surface treatment followed by heat treatment

Keita KANENISHI1), Shinichi SAKIDA2), Yasuhiko BENINO1), Tokuro NANBA1)
1) Graduate School of Environmental Science, Okayama University 2) Environmental Management Center, Okayama University

Surface crystallized glass-ceramics with nonlinear optical Bi2ZnB2O7 (BZB) crystals were prepared by ultrasonic surface treatment (UST) followed by crystallization heat treatment for stoichiometric glass with a composition of 33.3Bi2O3–33.3ZnO–33.3B2O3. According to the surface XRD measurements and microscopic observations, UST technique was found to be quite effective for lower temperature precipitation of BZB, indicating the ability of crystallization control of the target phase, such as phase selectivity, small size of precipitates, high orientation and their morphology. After the optimization of the process condition parameters for improving transparency and suppressing deformation of the sample, the effective optical nonlinearity of the transparent surface crystallized glass-ceramics was estimated as 0.7 pm/V.


Keyword:
Surface crystallization, Bismuth zinc borate glass, Glass-ceramics, Ultrasonic surface treatment, Optical nonlinearity

Received: June 04, 2012
Accepted: July 31, 2012 , Published online: November 01, 2012
Copyright © 2012 The Ceramic Society of Japan

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