イオン交換によってガラス表面に導入された銅によるガラスの着色。ガラス中のAl_2O_3成分の効果

  • 作花 済夫
    Chemistry Department of Industry and Resources, Faculty of Engineering, Mie University
  • 西雪 敏紀
    Chemistry Department of Industry and Resources, Faculty of Engineering, Mie University
  • 西富 正典
    Chemistry Department of Industry and Resources, Faculty of Engineering, Mie University
  • 神谷 寛一
    Chemistry Department of Industry and Resources, Faculty of Engineering, Mie University

書誌事項

タイトル別名
  • Coloration of Glass due to Copper Incorporated into Glass Surface by Ion Exchange. Effect of Al_2O_3 Component in Glass

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説明

Glasses of the compositions <special>20Na2O・(10-x)CaO・xAl2O3・7OSiO2</special> in mole, where x = 0, 1, 2.5, 5,7.5 and 10 were ion-exchanged in CuCl melt or vapor at 500℃~600℃ for 10 to 60 min. The absorption spectra were determined and coloring was observed. The composition of glass markedly affected the absorption after ion exchange and light green, dark green, brown, red and reddish brown colors were observed depending on the composition of glass. The effect of subsuquent heating in air on the color of ion-exchanged glass was also examined. This treatment produced light blue glasses in the compositions of lower <special>Al2O3</special> content. The absorption bands produced in ion-exchanged glasses and subsequently air-heated glasses were discussed in terms of formation of <special>Cu2+</special> ions, <special>Cu+</special> ions, <special>Cu2O</special> and Cu colloids, and CuO crystals.

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