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ZrO2对CaO-Al2O3-SiO2系统微晶玻璃烧结过程的影响研究 总被引:2,自引:1,他引:2
CaO-Al2O3-SiO2系统微晶玻璃作为微晶玻璃中的一个新品种,具有非常鲜明的特点.本文讨论了在CaO-Al2O3-SiO2系统微晶玻璃中加入ZrO2,研究了ZrO2对CaO-Al2O3-SiO2系统微晶玻璃烧结的影响.随着ZrO2加入量的增加,玻璃颗粒的烧结收缩率下降,说明ZrO2的加入对玻璃颗粒的烧结收缩有一定的阻碍作用.ZrO2的加入对CaO-Al2O3-SiO2系统微晶玻璃中的主晶相(β-硅灰石晶体)的析出没有大的影响. 相似文献
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锂铝硼硅微晶玻璃热处理制度的优化设计 总被引:2,自引:0,他引:2
采用差热分析(DTA) ,X衍射分析(XRD) ,扫描电镜分析(SEM )等分析手段研究热处理制度对锂铝硼硅微晶玻璃热膨胀系数的影响,并主要通过正交试验分析热处理过程中各因素对热膨胀系数的影响。得到影响因素的主次顺序为:晶化温度>核化时间>核化温度>晶化时间,并得出较好的热处理工艺条件:核化温度72 0℃、核化时间90min、晶化温度810℃、晶化时间16 0min ,为该晶系微晶玻璃的研究提供有益的参考。 相似文献
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1INTRODUCTION Nowadays,glassresearchersandarchitecture designersbecomeinterestedinthesinteringglass ceramics,anewlyappearingmaterialforarchitec turaldecoration[13].Comparedwithnaturalstone materials,sinteringglass ceramicsdecoratedmate rialshavethefollowingadvantages:densestruc tureandhighstrength.Itsbasicglasscomponents belongtoCaO Al2O3SiO2system.Becausenonu cleationagentisrequired,thissystemisattributed tothesuperficialcrystallizationmechanismofglass[4].Theproductionprocessofsinteri… 相似文献
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ZrO2 was added into CaO-Al2O3-SiO2 glass-ceramics and the effect of ZrO2 on sintering and crystallization of CaO-Al2O3-SiO2 glass ceramics was investigated. The results show that the sintering shrinkage ratio of glass particles decreases with the increase of the content of ZrO2. ZrO2 has an unfavourable effect on sintering shrinkage ratio of glass particles. The sintering shrinkage ratio of glass particles increases with the increase of sintering temperature. The increase of sintering temperature favors the decrease of the liquid phase viscosity of glass particles. ZrO2 has little effect on crystallization of main crystalline phase (β-wollastonite). However, it promotes the crystallization at relatively low temperature. 相似文献
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