| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Glasses and Optical Materials: Current Issues and Functional Applications
|
| Presentation Title |
Studying Enthalpy Relaxation of Sodium Aluminosilicate Glasses Using Modulated Differential Scanning Calorimetry |
| Author(s) |
Brittney Morgan Hauke, John C Mauro |
| On-Site Speaker (Planned) |
Brittney Morgan Hauke |
| Abstract Scope |
Modulated Differential Scanning Calorimetry (MDSC) is a technique that has been used to study many glass families, but the sodium aluminosilicate (NAS) system has not received much, if any, attention. MDSC is used to measure enthalpy relaxation in a variety of ways and currently has two different analysis techniques: the non-reversing heat flow method and the complex heat capacity method. The non-reversing heat flow method is much debated in literature. This talk focuses on general characterization and MDSC of NAS glasses with the ratio of [Al2O3]/[Na2O] from 0-1.42, with SiO2 kept at approximately 60 mol%. Data from both analysis techniques are compared and best practices for the non-reversing heat flow technique are proposed. |