论文部分内容阅读
Modifier-free mixed network former glasses are technically important due to their special properties, e.g., low thermal expansion coefficient, low Youngs modulus, and high strain points (≥650 ℃).1) In addition, many mixed network former glasses have high liquidus viscosities (＞3 × 105 poise), which is a requirement for the fusion sheet manufacturing process.2) Some previous studies have shown the evolution of structural units with composition in ternary network former glasses.1),2)