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一种辉石基高熵玻璃陶瓷含铜复合材料

A kind of Augite-based copper-containing composites of high entropy glass ceramic

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【作者】 张雪峰徐文策陈伟丽贾晓林李保卫

【Author】 ZHANG Xue-feng;XU Wen-ce;CHEN Wei-li;JIA Xiao-lin;LI Bao-wei;Science School ,Inner Mongolia University of Science and Technology;State Key laboratory,Inner Mongolia University of Science and Technology;National and Local Joint Engineering Research Center for Comprehensive Utilization of Associated Mineral Waste Resources in Bayan Obo;

【机构】 内蒙古科技大学理学院内蒙古科技大学国家重点实验室白云鄂博共伴生矿废弃物资源综合利用国家地方联合工程研究中心

【摘要】 以白云鄂博尾矿为主要原料,采用熔融法制备辉石相高熵玻璃陶瓷含铜复合材料.采用差热分析、XRD、SEM及性能检测手段,研究了在核化温度720℃、晶化温度820℃制备的高熵玻璃陶瓷物相组成、显微结构与性能之间的关系.结果表明:金属铜均匀弥散在辉石相晶粒间,并且CuO使辉石相由微米粒状结构转化为纳米球晶结构,促进玻璃基体析晶,提高高熵玻璃陶瓷致密程度;铜颗粒掺杂优化了高熵玻璃陶瓷性能:随着氧化铜含量增加,高熵玻璃陶瓷显微硬度稳定在720±5 kg/mm~2,抗折强度达258 N/mm~2,软化温度逐渐降低.

【Abstract】 Taking the Baiyun Obo tailings as the main raw material,the Augite phase high entropy glass ceramic Cu-containing composite material was prepared using melting method. The relationship between phase composition,microstructure and properties of the high entropy glass ceramics with crystallization temperature of 720 ℃ and 820 ℃ were investigated by differential thermal analysis,XRD,SEM and performance testing methods. The results show that copper dispersed uniformly between pyroxene grains,and Cu O transformed the pyroxene phase from micro-granular structure to nano-spherulitic structure,promoting the crystallization of glass matrix and improving the density of high-entropy glass ceramics. Copper particle doping optimized the properties of the high entropy glass ceramic. With the increase of the content of copper oxide,the microhardness was stable at 720 ± 5 kg/mm~2,and the flexural strength was as high as258 N/mm~2,while the softening temperature of the high entropy glass ceramics decreased gradually.

【基金】 内蒙古科技重大专项基金资助项目
  • 【文献出处】 内蒙古科技大学学报 ,Journal of Inner Mongolia University of Science and Technology , 编辑部邮箱 ,2018年04期
  • 【分类号】TB33
  • 【被引频次】3
  • 【下载频次】236
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