晶核剂P_2O_5对CaO-Al_2O_3-SiO_2系黄磷炉渣微晶玻璃析晶的影响  

Effect of Nucleation Agent P_2O_5 on Crystallization of CaO-Al_2O_3-SiO_2 Glass Ceramics from Yellow Phosphorus Furnace Slag

作　　者：陈丹莉[1] 黄小凤[1] 刘红盼[1] 尚志标 刘秀状 赵丹[1] 范莹莹[2] CHEN Dan-li;HUANG Xiao-feng;LIU Hong-pan;SHANG Zhi-biao;LIU Xiu-zhuang;ZHAO Dan;FAN Ying-ying(Environmental Science and Engineering Faculty,Kunming University of Science and Technology,Kunming 650504,China;Faculty of Science,Kunming University of Science and Technology,Kunming 650504,China)

机构地区：[1]昆明理工大学环境科学与工程学院,昆明650504 [2]昆明理工大学理学院,昆明650504

出　　处：《人工晶体学报》2017年第11期2137-2142,共6页Journal of Synthetic Crystals

基　　金：昆明理工大学分析测试基金(2016T11304019)

摘　　要：采用熔融法以自然冷却黄磷炉渣为主要原料,P_2O_5为晶核剂,制备了黄磷炉渣微晶玻璃。利用X射线衍射仪(XRD)、差热分析(DTA)和扫描电子显微镜(SEM)等分析技术手段,探究了晶核剂P_2O_5(以KH_2PO_4的形式引入)对黄磷炉渣微晶玻璃晶化行为及物化性能的影响规律。结果表明:黄磷炉渣基础玻璃的析晶峰温度Tp及析晶活化能E随着P_2O_5晶核剂的增加呈现先减小后增大的趋势;当晶核剂P_2O_5加入量达到4wt%时,黄磷炉渣基础玻璃的析晶峰温度Tp及析晶活化能E最小,析晶效果最优,物化性能最优;主晶相硅灰石(CaSiO_3)并不随着晶核剂P_2O_5加入量的增大而发生改变,同时能够促进晶相氟磷灰石(Ca_5(PO_4)_3F)生成。The CaO-Al2 03 -Si02 （ CAS） glass-ceramics were prepared by melting method using natural cooling yellow phosphorus furnace slag as main material and P2O5 as nucleation agent. The effect of P2 0 5 on the crystallization and properties of glass-ceramics has been studied by differential thermal analysis （DTA） , X-ray diffraction（ XRD） , scanning electron microscope （ SEM） and so on. The results show that the crystallization peak temperature Tp and crystallization activation energy E of yellow phosphorus furnace slag basic glass firstly increase and then decrease with the content of P2 05 increase, when the content of P205 is 4wt% , the crystallization activation energy E of yellow phosphorus furnace slag basic glass is minimum, the effect of crystallization and physical and chemical properties are the best. The main crystalline phase of the type is also Wollastonite （ CaSi03） with the content of P2O5 increase. At the same time,the increase of P205 can promote the produce of Fluorapatite （Ca5（P04）3F）.

关 键 词：黄磷炉渣 P2O5 微晶玻璃 晶核剂 析晶活化能 

分 类 号：X7[环境科学与工程—环境工程]