he influence of heating and reduction processes on the structural, thermal and mechanical properties of bismuth-silicate glasses has been investigated. Two compositions of glasses: 40Bi2O3–60SiO2 (Bi0.57Si0.43Ox) and 27Bi2O3–73SiO2 (Bi0.43Si0.57Ox) were fabricated by a typical melt quenching technique. Then the reduction in hydrogen at 380 °C for 20, 42 or 67 h was performed. It was found that a 50 μm-thick layer was formed on the glass surface after reduction process. It was confirmed that this layer is formed by granules of metallic bismuth embedded in a glass matrix. The DSC measurements confirmed that melting of metallic bismuth takes place during heating of a previously reduced glass sample. It was also found that heat treatment process influences hardness and Young modulus of Bi–Si–O glass.
Authors
- dr hab. inż. Beata Bochentyn link open in new tab ,
- Agata Warych link open in new tab ,
- dr hab. inż. Natalia Anna Wójcik link open in new tab ,
- dr hab. inż. Aleksandra Dorota Mielewczyk-Gryń link open in new tab ,
- dr hab. inż. Jakub Karczewski link open in new tab ,
- dr inż. Marta Prześniak-Welenc link open in new tab ,
- prof. dr hab. inż. Maria Gazda link open in new tab ,
- prof. dr hab. inż. Bogusław Kusz link open in new tab
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1016/j.jnoncrysol.2016.02.026
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2016
