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J. Korean Ceram. Soc. > Volume 36(6); 1999 > Article
Journal of the Korean Ceramic Society 1999;36(6): 640.
압전응용을 위한 Langasite(La$_3$Ga$_5$SiO$_{14}$) 단결정의 성장 및 특성
정일형, 오근호
한양대학교 세라믹공정연구센터
Growth and Characteristics of Langasite(La$_3$Ga$_5$SiO$_{14}$) Single Crystal for the Piezoelectric Applicatons
Recently rapid progress of electronic and telecommunication technology requires the development of new piezoelectric materials and cellular communication is more and more used in various fields. Langasite(La3Ga5SiO14) is suitable for new piezoelectric properties. Langastie can be applied as communication devices due to intermediate piezoelectric properties which are similar to those of quartz and LiTaO3 in its acoustic characteristics. So in this study Langastie(La3Ga5SiO14) single crystal with 47 mm in diameter and 25mm in length were sucessfully grown by using self-designed Czochralski system. In addition optimum growth conditions for the piezoelectric applications throughout estimation of crystal quality and frequency characteristics were investigated.
Key words: Piezoelectric, Langasite(La$_3$Ga$_5$SiO$_{14}$), Czochralski, Frequency
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