Zhao-Hui Zhang

TL;DR: Based on the results of the direct visual observations and characteristic microstructure analysis, the authors believe that spark discharge does indeed occur during the SPS process and the high-temperature spark plasma could be generated in the microgaps due to the discharge effect.

TL;DR: Spark plasma sintering (SPS) as discussed by the authors is a widely used powder metallurgy technique for high-dimensional materials, where the sample is simultaneously subjected to uniaxial pressure and electrical current in a vacuum or protective atmosphere.

TL;DR: In this article, multi-walled carbon nanotube (MWCNT) reinforced titanium matrix composites were synthesized using a spark plasma sintering method at a low sinting temperature of 550 degrees C. The effects of the weight fraction of MWCNTs on the microstructures and the mechanical and thermal properties of the composites are investigated.

TL;DR: In this paper, the relationship between the sintering parameters and the microstructure of the bulk compact was obtained and studied, and it was concluded that large-size ultrafine-grained copper with an average grain size less than 2.2μm and a relative density greater than 96% could be prepared by the SPS process with initial pressure of 1.

TL;DR: In this article, the relationship between the sintering temperature and relative density of the nanocrystalline bulk copper was studied, the microstructure and the mechanical properties were examined, and the SPS mechanism was discussed.