| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Phase Transformations in Ceramics: Science and Applications
|
| Presentation Title |
Single Crystal Growth and Characterization of Magnetic Ceramics Using the Laser Heated Pedestal Growth Process |
| Author(s) |
Edward Clover Hoffman, Dolendra Karki, Travis Olds, Paul Ohodnicki |
| On-Site Speaker (Planned) |
Edward Clover Hoffman |
| Abstract Scope |
Single crystal growth of magnetic ceramics will be discussed using laser heated pedestal growth (LHPG). The LHPG method has been adapted as a method for floating zone crystal growth to avoid contamination effects and prompt coherent growth. However, as with any floating zone crystal growth method, there are challenges for growth of homogeneous single crystal oxides which display incongruent melting due to the need to maintain stability of the growth interface and the desire to mitigate compositional segregation within the grown single crystal. In this work we explore feasibility for growth of magnetic ceramics single crystals of stoichiometric chemistry despite modest chemical segregation between the solid and liquid phase predicted at the solidification temperature. Samples prepared through LHPG are characterized using structural and magnetic property characterization methods, and subsequent annealing following single crystal growth is also explored to facilitate chemical homogenization and phase purity of single crystal samples. |