| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
16th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
| Presentation Title |
In-Situ Investigation on Crack-Initiation and Deformation of Alumina Green Bodies during Dewaxing Process by Combined OCT-TG-FTIR and TMA |
| Author(s) |
Junichi Tatami, Mariko Minami, Motoyuki Iijima, Takuma Takahashi, Tatsuki Ohji |
| On-Site Speaker (Planned) |
Junichi Tatami |
| Abstract Scope |
Reducing energy consumption in the firing process of ceramics is essential to realize a sustainable society. However, firing is only optimized based on experience to suppress cracking and deformation, and control based on scientific understanding has been insufficient. In this study, optical coherence tomography directly observed the internal structure of alumina green bodies during the dewaxing process. The gas generation during dewaxing and the mechanical properties of green bodies at high temperatures were further analyzed by TG and three-point bending test, respectively. Although crack formation was observed during the dewaxing process in the green body prepared by adding only PVB as an organic binder, no cracks were found in the green body prepared by paraffin or the simultaneous addition of PVB and basic aluminum lactate, which was an inorganic binder, because the bending strength of the green bodies was improved. |