Abstract
A method for advanced manufacturing of silicon carbide offering complete freedom in geometric complexity in the three-dimensional space is described. The method combines binder jet printing and chemical vapor infiltration in a process capable of yielding a high-purity, fully crystalline ceramic—attributes essential for ideal performance in very high-temperature applications or in the presence of displacement damage. Thermal conductivity and characteristic equibiaxial flexural strength of the resulting monolithic SiC at room temperature are 37 W·(m·K)−1 and 297 MPa, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1575-1581 |
| Number of pages | 7 |
| Journal | Journal of the American Ceramic Society |
| Volume | 103 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 2020 |
Funding
The following staff at ORNL contributed to experimental investigations: D. Richardson assisted with 3D printing, A. Schumacher assisted with CVI, T. Geer produced metallographic specimens, R. Seibert and C. Cramer performed electron microscopy, S. Curlin performed laser flash measurements, F. Montgomery performed thermogravimetry, and T. Koyanagi led the mechanical testing. G. Vasudevamurthy and Y. Kato provided useful comments on the manuscript. The work presented in this paper was supported by the Advanced Fuels Campaign and Transformational Challenge Reactor programs under Office of Nuclear Energy, US Department of Energy.
| Funders | Funder number |
|---|---|
| Advanced Fuels Campaign | |
| US Department of Energy | |
| Office of Nuclear Energy |
Keywords
- 3D printing
- processing
- silicon carbide
