Abstract
An 18-sample glass-melting furnace was newly developed and glass-forming compositional regions were found in lead-free B 2 O 3 -TeO 2 -[xBaF 2 /(100-x)BaO] ternary systems. The softening temperatures were measured in the systems to screen out low-melting compositions. The softening temperature ranges from 450 to 470 °C and the thermal expansion coefficient ranges (115-140)× 10 -7 °C -1 . These values were comparable to those of typical lead-containing glasses. It was also found that substitution of BaF 2 for BaO effectively lowers the melting temperatures without changing the thermal expansion coefficient.
Original language | English |
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Pages (from-to) | 2450-2455 |
Number of pages | 6 |
Journal | Applied Surface Science |
Volume | 252 |
Issue number | 7 |
DOIs | |
Publication status | Published - 21 Jan 2006 |
Event | Proceedings of the Third Japan-US Workshop on Combinatorial Material Science and Technology CMST-e SI - Duration: 7 Dec 2004 → 10 Dec 2004 |
Keywords
- Glasses
- Lead-free
- Low-melting