摘要
以攀西地区高炉废渣为原料,采用陶瓷烧结工艺制备了不同稀土Ce掺杂量的高炉渣远红外陶瓷。研究了高炉渣陶瓷中稀土Ce的最佳掺入量以及稀土的掺入对陶瓷红外辐射性能的影响机理,考察了稀土的掺入对于高炉渣陶瓷线收缩率、吸水率及抗折强度的影响。采用X射线衍射与扫描电子显微镜研究了样品的晶相组成与显微结构,采用Fourier红外吸收光谱及发射光谱研究了样品红外吸收及发射性能。结果表明:陶瓷红外发射率最高达0.91,样品的抗折强度最高达38.1 MPa。高炉渣远红外陶瓷不仅具备高的远红外辐射能力,而且拥有良好的物理性能。
A series of far-infrared ceramics were prepared by a sintering process with blast furnace slags （Pan-xi region, China） as raw material with Ce as a dopant. The influence of rare earth element Ce on the far-infrared properties and mechanical properties （i.e., linear shrinkage, water absorption and bending strength） of blast furnace slags ceramics was investigated, and the optional Ce doping contents was determined. The phase composition and microstructure were characterized by X-ray diffraction and scanning electron microscopy, respectively. The far-infrared emission and absorption properties of samples were determined via the Fourier transform infi-ared spectroscopy. The results indicate that the maximum far-infrared emissivity of as-prepared samples is 0.91, and its bending strength is up to 38.1 MPa. Therefore, the developed blast furnace slags ceramics have the excellent ability of far-infrared radiation and mechanical properties.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2017年第9期1310-1315,共6页
Journal of The Chinese Ceramic Society
基金
四川省科技支持计划(2015GZ0175)
关键词
高炉渣
稀土
红外辐射
物理性能
blast furnace slags, rare earth, far-infrared emission, physical performance
