Effect of glass cooling rate on the crystallization behavior and structure of Al2O3-SiO2-Na2O-CaF2 oxyfluoride glass-ceramics

Mengxuan Li; Jinxin Zou; Guangping Guo; Jianxiang Liu; Guicheng Wang

doi:10.36410/jcpr.2021.22.5.504

추천

검색

자료유형: 학술저널

저자정보: Mengxuan Li (Guizhou Metallurgical Chemical Industry Research Institute) Jinxin Zou (Guizhou Research Institute of Chemical Industry) Guangping Guo (Guizhou Metallurgical Chemical Industry Research Institute) Jianxiang Liu (Guizhou Metallurgical Chemical Industry Research Institute) Guicheng Wang (Guizhou Research Institute of Chemical Industry)

저널정보: 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제22권 제5호

발행연도: 2021.10

수록면: 504 - 509 (6page)

DOI: 10.36410/jcpr.2021.22.5.504

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

The glass cooling rate during molding process has significant effect on the crystallization behavior and structural uniformityof Al2O3-SiO2-Na2O-CaF2 oxyfluoride glass-ceramics. Abaqus Finite Element Analysis indicated that at room temperaturecooling environment, the cooling rate of 8mm thick glass was notably lower than that of 3 mm thick glass. The interiortemperature of 8 mm thick precursor glass was still above 710 oC even after the sample was cooled for 15 s, which caused theformation of “crystal stones” in precursor glass. The microstructure of oxyfluoride glass and glass-ceramics with differentthickness was analyzed by using DTA, XRD, IR and SEM. Since the 8 mm thick glass was cooled slowly, the initial crystalnucleation generated in the interior of glass, mixed crystal phases were formed in the interior after heat treatment, while singleCaF2 crystal phase formed on the surface. On the contrary, there was only uniform CaF2 crystal phase generating in the 3mm thick precursor glass after heat treatment, as a result of high cooling rate during molding process. Besides, the mechanismand ways to optimize the structure uniformity of glass ceramics were also be discussed.

#Oxyfluoride glass-ceramics #Finite element analysis #Cooling rate #Microstructure

참고문헌 (13)

참고문헌 신청

H. Rahimian / 2017 / J. Lumin 187:535~539

R. Stefan / 2019 / J. Non-Cryst. Solids 505:9~17

I. Hussain / 2019 / Trans. Indian Ceram. Soc 78(3):125~130

W. J. Zhang / 2012 / J. Am. Ceram. Soc 95(2):663~669

P. Babu / 2011 / Opt. Express 19(3):1836~1841

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!