摘要
这是一篇陶瓷及复合材料领域的论文。为了提高粉煤灰基多孔陶瓷材料的性能,利用Al_(2)O_(3)修饰液对样品进行表面处理,并对其开展物理、力学性能、吸附效果和微观实验。结果表明:烧结温度越高,多孔陶瓷的气孔率与吸水率越小,强度和表观密度越大,在1100℃的温度条件下,多孔结构烧结成型的效果较佳;当修饰液的浓度从0增至50 mol/L,多孔陶瓷的饱和吸附率增加了4.5倍左右,同时密实度和强度也显著提高;氧化铝修饰液的表面改性效应对钙长石晶体的形成起到促进作用,使得孔陶瓷的强度与吸附性能显著提升。
This is an article in the field of ceramics and composites.In order to improve the performance of fly ash-based porous ceramic materials,the samples were surface-treated using Al_(2)O_(3) modifying liquid,and physical and mechanical properties,adsorption effects and microscopic experiments were carried out on them.The results showed that the higher the sintering temperature,the smaller the porosity and water absorption of the porous ceramics,and the greater the strength and apparent density.Optimal sintering and molding of porous structures at a temperature of 1100℃.When the concentration of Al_(2)O_(3) modifying liquid was increased from 0 to 50 mol/L,the saturated adsorption rate of the porous ceramics increased about 6 times,and at the same time,the densities and strengths were also significantly increased.The surface modification effect of the Al_(2)O_(3) modifying liquid promotes the formation of the caliche feldspar crystals,which results in a significant increase in the strength and adsorption properties of the porous ceramics.strength and adsorption performance were significantly improved.
作者
狄娜
刘波
许圆圆
DI Na;LIU Bo;XU Yuanyuan(Changchun Institute of Science and Technology,Changchun 130000,Jilin,China;Chengdu College,University of Electronic Science and Technology of China,Bazhong 611731,Sichuan,China;Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China)
出处
《矿产综合利用》
CAS
2024年第2期16-22,共7页
Multipurpose Utilization of Mineral Resources
基金
江苏省重点研发项目(212400410184)。
