Preparation of transparent Mn-doped CaF2 glass-ceramics from silicon-manganese slag: Dependence of colour-controllable change on slag addition and crystallization behavior. Issue 8 (July 2020)

• Record Type: Journal Article
• Authors: Miao, Xiwang; Bai, Zhitao; Qiu, Guibo; Tang, Shujie; Guo, Min; Cheng, Fangqin; Zhang, Mei
• Is Part Of: Journal of the European Ceramic Society. Volume 40:Issue 8(2020)
• Page Start: 3249
• Page End: 3261
• Publication Date: 2020-07
• Subjects: Silicon-manganese slag -- Transparent glass-ceramics -- Mn-doped CaF2 nanocrystals -- Colour-controllable change; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2020.02.029
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: Silicon-manganese slag was firstly used to prepare the transparent colour-controlled glass-ceramics containing Mn-doped CaF2 nanocrystals. The maximum utilization ratio of slag reaches to 27.04 wt%, and the colour of the samples trended red-brown to red light as the added slag content increased. The transparent glass-ceramics could be prepared when crystallized between 650 and 710 °C for 2 h, and had a minimum transmittance of 67.95 % at a wavelength of 780 nm. Increasing the content of added slag caused the emission spectrum to shift, demonstrating the ability to control the colour of the transparent glass-ceramics, and also enhanced the fluorescence intensity. The crystallization behaviour conversely has little effect on the colour change, but can increase the fluorescence intensity. In general, this work provides a new approach for the comprehensive utilization of silicon-manganese slag for applications in optical engineering.