烧结工艺对Fe/辉石基高熵陶瓷显微结构的影响  

Effect of Sintering Processes on Microstructure of Fe/Augite Matrix High-Entropy Ceramics

作　　者：陈伟丽[1,2] 李保卫 张雪峰[1,2] 贾晓林[2] 徐文策[1,2] CHEN Wei-li;LI Bao-wei;ZHANG Xue-feng;JIA Xiao-lin;XU Wen-ce(School of Science,Inner Mongolia University of Science&Technology,Baotou 014010,China;Key Laboratory of Integrated Exploitation of Bayan Obo Multi-metal Resources,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学理学院,包头014010 [2]内蒙古科技大学白云鄂博矿多金属资源综合利用重点实验室,包头014010

出　　处：《人工晶体学报》2019年第9期1685-1690,共6页Journal of Synthetic Crystals

基　　金：国家重点基础研究发展计划(973计划)(2012CB722802)

摘　　要：以制备CaO-MgO-Al2O3-SiO2系高熵玻璃陶瓷的水淬渣为主要原料,添加脱氧剂硅铁,利用常压烧结、放电等离子烧结(SPS)、微波烧结等三种工艺制备Fe/辉石基高熵陶瓷,通过X射线衍射、扫描电子显微镜和能谱仪等研究不同烧结工艺对相同原料制备的样品的物相、显微结构、密度和硬度的影响。结果表明,三种烧结工艺均能制备Fe/辉石基高熵陶瓷,在铁含量为17wt%的Fe/辉石基高熵陶瓷中辉石相和铁相有机结合,但样品的物相和显微结构略有不同。SPS烧结工艺制备的样品的致密度和硬度相对较高,但微波烧结制备的样品的密度最小,常压烧结制备的样品的硬度最小。The Fe/augite matrix high entropy ceramics was fabricated with the water quenched slag of the CaO-MgO-Al2O3-SiO2 high entropy glass ceramics and ferrosilicon as deoxidizer,by conventional sintering,spark plasma sintering(SPS)and microwave sintering.The effect of different sintering processes on the phase,microstructure,density and the Vickers hardness of the samples with the same raw material were investigated by X-ray diffraction,scanning electron microscopy and energy dispersive spectrometry.The results show that the Fe/Augite matrix high-entropy ceramics can all be fabricated by three kinds of sintering process.There are augite phase and iron phase in the Fe/Augite matrix high-entropy ceramics with the iron content 17wt%,but it is slightly different for the phase and microstructure of the sample.The density and hardness of the samples prepared by SPS sintering process are relatively high,but the samples prepared by microwave sintering have the smallest density,and the samples prepared by conventional sintering have the smallest hardness.

关 键 词：Fe/辉石基高熵陶瓷 烧结工艺 物相 辉石 

分 类 号：TQ171[化学工程—玻璃工业]