Spark Plasma Sintering of Nanocrystalline Niobium Nitride Powders |
| |
| Authors: | Songlin Ran Lian Gao |
| |
| Affiliation: | State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China |
| |
| Abstract: | Nanocrystalline niobium nitride (NbN) powders were sintered by spark plasma sintering under a nitrogen atmosphere at temperatures from 1040° to 1230°C. Fully dense bulk NbN ceramic with grain sizes of 0.5–1.0 μm was obtained at 1130°C. The effects of sintering temperature on the density, phase content, electrical conductivity, Vickers hardness, and microstructure of the NbN ceramic were discussed. |
| |
| Keywords: | |
|
|
