Spectroscopic investigation and colour change of natural topaz exposed to PbO and CrO3 vapour
The colourless natural topaz stones were surface modified to beautiful yellow and green
colour after heat treatment with lead oxide (PbO) and chromium oxide (CrO 3), respectively …
colour after heat treatment with lead oxide (PbO) and chromium oxide (CrO 3), respectively …
[PDF][PDF] Effect of Cr2O3 concentration on physical and optical properties of sodium barium bismuth silicate glasses
P Meejitpaisan, N Srisittipokakun… - Interdisciplinary …, 2018 - dept.npru.ac.th
Cr2O3 doped sodium barium bismuth silicate glasses have chemical composition (30-x)
SiO2: 30Na2O: 10 Bi2O3: 30BaO: xCr2O3 where x is 0.0, 0.1, 0.3, 0.5, 0.7 and 1.0 mol% and …
SiO2: 30Na2O: 10 Bi2O3: 30BaO: xCr2O3 where x is 0.0, 0.1, 0.3, 0.5, 0.7 and 1.0 mol% and …