Decolorization of high refractive index glass based on SiO2-(BaO + ZrO2)-TiO2 using transition metal oxides

被引：2

作者：

Lee, Jung Hee ^{[1
,2
]}

Lee, Hansol ^{[1
,2
]}

Choi, Yong Gyu ^{[3
]}

Kim, In Gun ^{[4
]}

Chung, Woon Jin ^{[1
,2
]}

机构：

[1] Kongju Natl Univ, Inst Rare Met, 1223-24 Cheonan Daero, Cheonan 31080, Chungnam, South Korea

[2] Kongju Natl Univ, Div Adv Mat Engn, 1223-24 Cheonan Daero, Cheonan 31080, Chungnam, South Korea

[3] Korea Aerosp Univ, Dept Mat Sci & Engn, Goyang 10540, South Korea

[4] Unique Technol Integral Corp, R&D New Business Div Team, Yesan 32446, South Korea

来源：

JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2022年 / 59卷 / 04期

关键词：

Glass beads; Refractive index; Road sign; Color control; ELECTRONIC POLARIZABILITY; OPTICAL-PROPERTIES; THERMAL-STABILITY; SILICATE; BEADS; ABSORPTION; TRANSITION; SPECTRA; BORATE; TIO2;

D O I：

10.1007/s43207-022-00187-z

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High refractive index glasses based on SiO2-(BaO + ZrO2)-TiO2 were synthesized for road sign applications with n(d) > 1.9. Although the refractive index increased with the addition of TiO2, visible transmittance was deteriorated with colorization of the glasses with increasing TiO2. Visible light absorption by the multi-valenced Ti-ions within the glass matrix was responsible for the change in color and transmittance. To improve transmittance and guarantee the retro-reflectivity of the glass beads, various transition metal oxides (TMOs) CuO, NiO, MnO and CoO were introduced for color control. The transmittance change with various TMOs was monitored, and a glass with CoO showed a noticeable change in color as well as an increase in transmittance. The valence change of Ti-ions was inspected by XPS, photo-luminescence (PL) and photo-luminescence excitation (PLE) spectra of the glasses, to elucidate the color change.

引用

页码：514 / 526

页数：13

共 33 条

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