TY - JOUR AU - Ruangtaweep, Yotsakit AU - Kaewkhao, Jakrapong AU - Sangwaranatee, Narong PY - 2019/01/10 Y2 - 2024/03/29 TI - Self-striking red glass fabrication at low temperature using gold nanoparticles JF - Journal of Metals, Materials and Minerals JA - J Met Mater Miner VL - 28 IS - 2 SE - Original Research Articles DO - UR - https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/394 SP - AB - This research is intended to determine the appropriate condition for gold ruby glass production at low temperature. The effects of reducing agent (SnO<sub>2</sub> and SeO<sub>2</sub>) concentrations on coloration of gold nanoparticle (AuNPs) in glass samples have been investigated. The glasses with chemical compositions of SiO<sub>2</sub>, B<sub>2</sub>O<sub>3</sub>, Al<sub>2</sub>O<sub>3</sub>, Na<sub>2</sub>O, CaO, K<sub>2</sub>O, Sb<sub>2</sub>O<sub>3</sub>, SnO<sub>2</sub>, SeO<sub>2</sub> and AuNPs were fabricated by conventional melt-quench technique at 1,200°C in normal atmosphere. The results found that the red glasses were obtained by SnO<sub>2</sub> with concentration of 0.5 wt% and SeO<sub>2</sub> with concentration of 0.05 wt%. The color of glasses were confirmed by UV-visible spectrophotometer in the wavelength range 300-1100 nm and color coordinate in CIE L*a*b* system. Moreover, the color of glasses were obtained immediately when took the glass out of furnace without second heat treatment. ER -