复合晶核剂对黄磷炉渣微晶玻璃析晶的影响

发布时间：2018-05-22 13:50

本文选题：黄磷炉渣 + 复合晶核剂　；参考：《人工晶体学报》2017年08期

【摘要】：以黄磷炉渣为主要原料,通过添加不同种类的复合晶核剂,采用熔融法制备了黄磷炉渣微晶玻璃。借助化学热力学软件Fact Sage 6.4模拟计算晶相类型,借助Kissinger方程分析析晶能力,利用X射线衍射仪(XRD)和扫描电子显微镜(SEM)进行验证。结果表明:相比添加单一晶核剂TiO_2,复合晶核剂TiO_2+Ca F_2或复合晶核剂TiO_2+P_2O_5均能够降低黄磷炉渣基础玻璃的析晶活化能E,促进其析晶,复合晶核剂TiO_2+Cr_2O_3能够提高黄磷炉渣基础玻璃的析晶活化能E,抑制其析晶;无论添加单一晶核剂TiO_2,还是添加复合晶核剂TiO_2+Ca F_2、复合晶核剂TiO_2+P2O5或复合晶核剂TiO_2+Cr_2O_3,黄磷炉渣微晶玻璃晶相类型相同,主晶相为硅灰石(Ca Si O3),副晶相为铝透辉石(Ca(Mg,Al)(Si,Al)_2O6_)和氟磷灰石(Ca_5(PO_4)3_F),这与化学热力学软件Fact Sage 6.4模拟计算结果基本一致。
[Abstract]:Using yellow phosphorus slag as the main raw material, the glass-ceramics of yellow phosphorus slag was prepared by melting method by adding different kinds of composite nucleating agent. The crystal phase types were calculated by chemical thermodynamics software Fact Sage 6.4, the crystallization ability was analyzed by Kissinger equation, and the results were verified by X-ray diffractometer (XRD) and scanning electron microscope (SEM). The results show that TiO_2 CaF2 or TiO_2 P_2O_5 can decrease the activation energy of crystallization and accelerate the crystallization of yellow phosphorus slag base glass, compared with the addition of a single nucleating agent TiO2, and the results show that the composite nucleating agent TiO_2 CaF2 or the composite nucleating agent TiO_2 P_2O_5 can decrease the activation energy of crystallization and promote the crystallization of yellow phosphorus slag base glass. The composite nucleating agent TiO_2 Cr_2O_3 can increase the activation energy of crystallization and inhibit the crystallization of yellow phosphorus slag based glass. Whether it is added with a single nucleating agent TiOSt, or with a composite nucleating agent, TiO_2 Ca / F _ 2, the composite nucleating agent TiO_2 P2O5 or the composite nucleating agent TiO_2 Cr _ 2O _ 3, the yellow phosphorus slag glass-ceramics are of the same type. The main crystalline phase is wollastonite / CaSiO _ 3, and the parallic phase is aluminum diopside, CaMg-Mg-Si-Si-Al _ 2O _ 6 / C) and fluoroapatite apatite. The results are in good agreement with the results of the chemical thermodynamics software Fact Sage 6.4.The main crystal phase is wollastonite / CaSiO _ 3N _ 3, and the parallic phase is aluminodiopyroxene.
【作者单位】：昆明理工大学环境科学与工程学院;昆明理工大学理学院;
【基金】：昆明理工大学校测试基金(2017M20162107015,2017M20152207032)
【分类号】：TQ171.733

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