Synthesis and assessment of properties of ZrB2 nanopowder utilizing boro/carbothermal reduction method

Abstract

The reason of this study is to synthesize ZrB₂ nano powder utilizing boric acid and phenolic resin. Within the study of zirconia as a source of zirconium, boric acid was used as a source of boron and phenolic resin as a carbon source. The theoretical and experimental studies of ZrB₂ were synthesized by boro/carbothermal diminishment from the novel sol–gel technology. The zirconia powder was crushed for 8 h and in conjunction with different molar proportions of boric acid, in this consider, a kinetic demonstrate for reactions creating ZrB₂ was built up based on thermodynamic analysis. The resultant powder was synthesized in a neutral atmosphere controlled in 1450°C and 1550°C. After it was also observed that, with the increase of molar proportion of H₃BO₃, the reaction delivered ZrB₂ powders in high amount of the boron reaction. The compound was analyzed by an X-ray diffraction technique and found to be ZrB₂ powder that was synthesized with the purity of approximately 98%.