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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.125  No.4 (April) (2017)  >  pp.343-347

Journal of the Ceramic Society of Japan
<<Previous article Vol.125  No.4 (April) (2017)   pp.343 - 347 Next article>>

Formation and photoluminescence of zirconia dendrites in borosilicate glass-ceramics

Yasuhiro NOBUTA1), Yoshihiro TAKAHASHI1), Takamichi MIYAZAKI2), Nobuaki TERAKADO1), Noriko ONOUE3), Tsuyoshi SHINOZAKI3), Takumi FUJIWARA1)
1) Department of Applied Physics, Tohoku University 2) Department of Instrumental Analysis, Tohoku University 3) Department of Cardiovascular Medicine, National Hospital Organization, Sendai Medical Center

We prepared a borosilicate glass, in which the ZrO2 phase is singly crystallizable, i.e., 15Na2O–15ZrO2–30B2O3–40SiO2 glass, and investigated the texture and morphology of the resulting glass-ceramics. ZrO2 dendrites with a tetragonal system (high-temperature phase) were developed as initial phase, and the tetragonal phase was transformed to the monoclinic phase (low-temperature phase) by elongation of the heat-treatment time, and finally the needle-/rod-like crystals on a scale of few hundred nanometers were obtained. The glass-ceramics with monoclinic ZrO2 showed photoluminescence around 480 nm by excitation in the ultraviolet region. The effect of TiO2-addition on the photoluminescent property was also considered.

Glass-ceramics, Zirconia, Photoluminescence, Rare-earth free

Received: January 04, 2017
Accepted: January 21, 2017 , Published online: April 03, 2017



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