Ceramics-coated graphite powders are considered an effective raw material to fabricate the three-dimensional continuous ceramics skeleton reinforced matrix composites which can overcome their inherent poor densification, mechanical and antioxidation properties. However, morphology thickness regulation of ceramic coatings on particles still a great challenge. Herein, SiC-coated (graphite@SiC) we...

Abstract Cemented carbide tools suffer from many issues due to the use of tungsten and cobalt as raw materials. Indeed, those are listed by European Commission “critical materials” since 2011 US Department Interior minerals” in 2018. To remain competitive with conventional high-speed steels, less performant but cheaper, WC–Co can be recycled. In present paper, a WC–7.5Co powder, recycled “Colds...

To improve the performance and overcome processing difficulties of La0.99Ca0.01NbO4 proton-conducting ceramic oxide, external internal strategies were used, respectively, to modify with NiO. The strategy refers use NiO as a sintering aid. was added synthesized powder secondary phase, which is traditional way using dopant for La0.99Ca0.01NbO4. Both sinterability conductivity, but effect doping m...

Yttrium and aluminium co-substitutions on lanthanum molybdate ceramics with the nominal formula La1.75Y0.25Mo2-xAlxO9-?? (LYMA, x = 0, 0.1, 0.2, 0.3 0.4) were synthesized by citric acid-nitrate combustion method used for preparation of solid electrolyte intermediate-temperature oxide fuel cells (ITSOFCs). Phase composition, structure, conductivity electrical properties LYMA have been investigat...