Thermal study of the influence of chemical composition on CRT glass crystallization
| Autor: | M. Kosmal, Paweł Pichniarczyk, Manuela Reben |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Transition temperature Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Condensed Matter::Disordered Systems and Neural Networks 01 natural sciences Thermal expansion 010406 physical chemistry 0104 chemical sciences law.invention Condensed Matter::Soft Condensed Matter law Phase (matter) Thermal stability Physical and Theoretical Chemistry Crystallization 0210 nano-technology Glass transition Thermal analysis |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 126:353-361 |
| ISSN: | 1588-2926 1388-6150 |
| Popis: | The influence of alumina oxide on the crystallization of silica–strontium–barium glass from cathode ray tube (CRT) was studied by means of thermal analysis. Thermal characteristics of glasses such as the transition temperature T g, the crystallization temperature T c and thermal stability parameter were determined by DTA/DSC method. The crystallization ability of the obtained glasses was also determined independently by the gradient furnace technique. The crystalline phase was determined by the X-ray diffractometry. The microstructure of the samples was studied by SEM technique. The linear expansion coefficients of glasses as a function of temperature were measured. Analysis of the local atomic interactions in the structure of glasses was used to explain the course of the crystallization. The effect of Al2O3 content on the CRT glass composition was studied by FTIR and solid-state 19F MAS–NMR spectroscopy. |
| Databáze: | OpenAIRE |
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