CAS系粉煤灰微晶玻璃制备工艺试验研究

摘要

以工业废弃物粉煤灰为主要原料,详细介绍了采用烧结法制备CaO-Al2O3-SiO2系粉煤灰微晶玻璃的过程及工艺细节。运用差热分析（DTA）、X射线衍射（XRD）、扫描电镜（SEM）等技术对粉煤灰微晶玻璃进行了研究,并测试了粉煤灰微晶玻璃的物化力学性能。通过实验分析了粘结剂用量与压力在微晶玻璃试样成型过程中的影响。检测结果表明,粉煤灰微晶玻璃的主晶相为副硅灰石,副晶相为钙长石;在粘结剂掺量为20%,并在20MPa的压力下成型所制得的微晶玻璃性能最优。%Taking industrial waste fly ash as main raw materials,it detailed the process of sintering CaO-Al2O3-SiO2 system fly ash glass-ceramics.Conducted a study on fly ash glass-ceramics through the use of differential thermal analysis（DTA）,X-ray diffraction（XRD） and techniques and so on,and tested the physical and chemical and mechanical properties of fly ash glass-ceramics.Experimentally analyzed the effect of the dosage of binder and pressure in the molding process of glass-ceramic samples.Test results showed that： the main crystal phase of fly ash glass-ceramics was wollastonite,vice crystal phase was anorthite;it would obtain optimal samples by forming glass-ceramics in binder dosage was 20%,and under the pressure of 20MPa.