铁矿围岩制备钙长石微晶釉的微观特征研究  

Microscopic Characteristics of Anorthite Crystalline Glaze Derived from Surrounding Rocks of Iron Ore

作　　者：张乙飞 张志彬[2] 黄菲[2] 常卓雅 闻昕宇 侯志刚 ZHANG Yifei;ZHANG Zhibin;HUANG Fei;CHANG Zhuoya;WEN Xinyu;HOU Zhigang(The First Geological Institute of China Metallurgical Geology Bureau,Langfang 065201,Hebei,China;School of Resources&Civil Engineering,Northeastern University,Shenyang 110819,Liaoning,China;Shougang Mining Company,Qian'an 064404,Hebei,China)

机构地区：[1]中国冶金地质总局第一地质勘查院,河北廊坊065201 [2]东北大学资源与土木工程学院,辽宁沈阳110819 [3]首钢集团有限公司矿业公司,河北迁安064404

出　　处：《陶瓷学报》2020年第2期184-189,共6页Journal of Ceramics

基　　金：国家重点研发计划项目(2018YFC1901903,DD20190182)。

摘　　要：本实验以铁矿围岩为主要原料,在氧化气氛中经1270℃高温烧成反应制备出钙长石微晶釉,并运用X射线衍射仪(XRD)和场发射扫描电镜(FM-SEM)分别表征釉面的矿物相组成和显微结构。结果表明,釉层主要新生结晶矿物为钙长石和少量的赤铁矿,并含有残余的熔融石英颗粒。板条状钙长石晶体密集堆叠生长,形成100-500μm的聚集体分布于釉层表面。部分晶形发育的钙长石晶体,晶枝沿晶核呈放射状延展生长,单晶粒度在50-100μm。Anorthite crystalline glaze was produced at 1270℃in an oxidation atmosphere by using the surrounding rock of iron ore as the raw material.The composition and microstructure of the anorthite crystalline glaze were characterized by using X-ray diffractometer(XRD)and field emission scanning electron microscopy(FESEM).Anorthite crystals had morphology of plate strip,with aggregate sizes of 100-500 gm on the surface of the glaze layer.Some anorthite crystals were present as the radial structure with grain sizes of 50-100 pm,where the dendrite crystals were grown radially along the nucleus.

关 键 词：铁矿 矿物釉 结晶釉 钙长石 陶瓷 

分 类 号：TQ174.4[化学工程—陶瓷工业]