Fabrication and characterizations of Zn1−xCoxO bulk ceramics prepared by solid state reaction combined with spark plasma sintering

Abstract

Zn 1-x Co x O (x = 0.01, 0.05 and 0.

Preparation and characterization of Co and Ga2O3-codoped ZnS and ZnSe bulk ceramics

“…Therefore, many researchers are focused on the preparation and relevant properties of these materials such as Co doped in ZnS, [9][10][11] Ga doped in ZnSe, [12][13][14] Co-Ga co-doped in ZnO, 15 Co-Fe co-doped in ZnS/ Se, 16 Ga-Mn co-doped in ZnO, 17 and the diluted magnetic semiconductors ZnCoO. 18,19 But, most of the previous work was concerned with thin lms, crystals, quantum dots, nano-wires or nano-particles, and less so with the bulk material. There are still many unsolved problems with these materials, such as the quality of raw material, the growth conditions and the impact of the dopant.…”

Effect of Al and Si Additions on the Synthesis of Spark Plasma Sintered Zr₂Al₄C₅ Creamic

“…However, the effect of Si and other sintering aid on the synthesis of bulk Zr 2 Al 4 C 5 ceramics has not been reported. It is well-known that spark plasma sintering is a fast sintering technique for nearly full densification of compound ceramics and thermoelectric bulk materials at a relative low-temperature [11][12][13][14], and had been used to successfully sinter Zr-Al-C related ceramics [15][16][17]. In this work, we attempted to synthesize Zr 2 Al 4 C 5 ceramic by an in-situ reactive spark plasma sintering using Zr, Al and carbon black as starting materials.…”