Title: Influence of optical performance on chromium melted glass

Authors: Xiaohua Bai

Addresses: Department of Material Science and Technology, Luoyang Institute of Science and Technology, Luoyang 471023, China

Abstract: The research goal of this paper is to study the factors affecting the optical performance of chromium colour glass. This green-yellow glass is to be produced from the glass raw materials, Na₂O-CaO-SiO₂, as fundamental material with addition of chromium oxide (Cr₂O₃) as colourant. The analysis of spectrum transmittance and chroma index has been carried out on the plates of this green-yellow glass by equipment. Results indicate that the optical performance and chroma index of this green-yellow melted glass are largely dependent on the factors such as concentration of colourants, oxidisability-reducibility of mixed batch and fundamental materials. When the quantity of Cr₂O₃ was in the range from 0.05% to 0.15%, the light transmittance decreased with increasing quantities of Cr₂O₃. When the concentration of carbon dust of mixed batch was decreased, the colouring effects improved.

Keywords: glass melting; chromium melted glass; optical performance; materials properties; coloured glass; carbon dust; colouring effects.

DOI: 10.1504/IJMMP.2015.072918

International Journal of Microstructure and Materials Properties, 2015 Vol.10 No.3/4, pp.231 - 238

Received: 09 May 2014
Accepted: 23 Dec 2014
Published online: 07 Nov 2015 *

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