硼酸
碳热反应
材料科学
立方氧化锆
硼
锆
二硼化锆
博罗
摩尔比
碳纤维
化学工程
核化学
复合材料
冶金
催化作用
陶瓷
复合数
有机化学
化学
碳化物
工程类
作者
Omid Khanali,Mehri Mashhadi,Alireza Salim Pour,Farhad Farhang Rad
摘要
Abstract The reason of this study is to synthesize ZrB 2 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 ZrB 2 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 ZrB 2 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 H 3 BO 3 , the reaction delivered ZrB 2 powders in high amount of the boron reaction. The compound was analyzed by an X‐ray diffraction technique and found to be ZrB 2 powder that was synthesized with the purity of approximately 98%.
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