About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
| Presentation Title |
Role of Hard Agglomerates on Defect Free Microstructures
|
| Author(s) |
Emelia Enke, William Carty |
| On-Site Speaker (Planned) |
Emelia Enke |
| Abstract Scope |
Microstructural control in the fabrication of ceramics is essential to obtaining optimal properties. Defects such as hard agglomerates are often the mechanical failure origins and can cause optical scattering and be the source for overall poor properties. This study investigated the elimination of hard agglomerates via milling and through the statistical analysis of the particle size distribution of commercially available alumina powders. Milled suspensions were slip cast after various milling times to assess the efficiency of agglomerate elimination and the impact on densification. Implications of hard agglomeration in alumina microstructure is discussed, along with methodology to determine the agglomerate concentration in ceramics. Significant improvements in the homogeneity of the sinter materials were found through the elimination of hard agglomerates. |