About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Engineering Ceramics: Microstructure-Property-Performance Relations and Applications
|
| Presentation Title |
Measurement of Glaze Thermal Expansion via Crazing |
| Author(s) |
Michael Thomas Carson, William Carty, Hyojin Lee, Grace Dunham |
| On-Site Speaker (Planned) |
Michael Thomas Carson |
| Abstract Scope |
The measurement of thermal expansion in glazes, essential for assessing their performance as durable coatings on ceramics, is a challenging and time-consuming process. If the glaze has a higher CTE than the body (CTEₓ > CTEᵦ), it will craze, with the crack pattern revealing the magnitude of the CTE mismatch.
This mismatch is influenced by the chemistry of both the glaze and the clay body. By using a ceramic body with a very low but known CTE, we can ensure that all glazes craze, allowing for the direct calculation of the glaze's CTE. This technique provides a straightforward approach and automatically accounts for the shift in glaze chemistry caused by body-glaze interactions, which influences the glaze’s CTE.
Additionally, the impact of glaze chemistry on thermal expansion as a function of thickness and temperature range was investigated to better understand these effects. |