About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
Presentation Title |
Textured UHTC Borides Using Extremely Low Magnetic Fields |
Author(s) |
Juan Diego Shiraishi Lombard, Carolina Tallon |
On-Site Speaker (Planned) |
Juan Diego Shiraishi Lombard |
Abstract Scope |
Textured Ultra-High Temperature Ceramics have shown potential for enhanced mechanical and thermal performance in extreme environments. In this work, analytical calculations and experiments are paired to demonstrate how extremely low magnetic fields in combination with high solid concentration suspensions with low viscosity lead to highly textured UHTC materials, using a very cost-effective manufacturing approach for this type of material.N52 grade NdFeB permanent magnets were utilized in a magnetically assisted slip casting process to create TiB2 with crystallographic texture. Analytical modeling of the forces involved in the process predicts formation of crystallographic texture under the estimated applied magnetic flux density of 0.55 - 0.6 T. The Lotgering orientation factors of sintered TiB2 processed with magnetic field parallel and perpendicular to the casting direction were 0.941 and 0.853, respectively, , with particle aligned domains that extends across several centimeters in the samples. |