Effect of vanadium oxide addition on thermomechanical behaviors of borosilicate glasses: Toward development of high crack resistant glasses for nuclear waste disposal

Journal Article · Mon Jul 01 04:00:00 EDT 2019 · Journal of Non-crystalline Solids

DOI:https://doi.org/10.1016/j.jnoncrysol.2019.04.009· OSTI ID:1719138

Lu, Xiaonan ^[1]; Sun, Ruofu F. ^[2]; Huang, Liping P. ^[2]; Ryan, Joseph V. ^[3]; Vienna, John D. ^[3]; Du, Jincheng ^[4]

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1. UNIVERSITY OF TEXAS
2. Rensselaer Polytechnic Institute
3. BATTELLE (PACIFIC NW LAB)
4. UNIVERSITY OF NORTH TEXAS

The effect of of V2O5 additions (up to 8 mol%) on the physical properties (e.g., density, glass transition temperature and refractive indices) and mechanical behaviors (e.g., hardness, fracture toughness, elastic modulus) of a soda-lime borosilicate glass with a composition of 60.2SiO(2)-16.0B(2)O(3)-12.6Na(2)O-3.8Al(2)O(3)-5.7CaO-1.7ZrO(2) (mol%) have been investigated systematically. It was found that introducing V2O5 decreases the glass transition temperature and hardness while increases the refractive index and crack initiation load. Composition-property relationships, especially on mechanical properties, were examined in order to provide insights for the development of new glass materials with outstanding mechanical properties. The results show that V2O5 can be a glass component for engineering and insuring high crack resistant glasses and glasses with long-term stability. Additionally, elastic properties as a function of temperature were studied using Brillouin light scattering and temperature-independent elastic moduli behaviors were observed.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1719138
• Report Number(s): PNNL-SA-146047
• Journal Information: Journal of Non-crystalline Solids, Journal Name: Journal of Non-crystalline Solids Vol. 515
• Country of Publication: United States
• Language: English