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| 氟化物对低温烧结氧化镁陶瓷的影响 | |
| 引用本文： | 张文政,刘正,毛萍莉,王趱.氟化物对低温烧结氧化镁陶瓷的影响[J].陶瓷学报,2011,32(2). |
| 作者姓名： | 张文政 刘正 毛萍莉 王趱 |
| 作者单位： | 1. 沈阳工业大学材料学院,辽宁沈阳110178;沈阳化工大学材料学院,辽宁沈阳110142 2. 沈阳工业大学材料学院,辽宁沈阳,110178 3. 沈阳化工大学材料学院,辽宁沈阳,110142 |
| 摘 要： | 研究了添加不同种类氟化物的氧化镁陶瓷的各种烧结条件和显微结构.实验发现:添加MgF2可以在相对低的温度下显著提升制品的致密度并促进晶粒的生长,说明采用MgF2可以实现低温烧结MgO.这说明MgO-MgF2体系中烧结驱动力即总界面自由能随着粒子总表面积的不断降低而降低. |
| 关 键 词： | 氟化物 氧化镁 致密度 烧结 |
Effect of Fluorides on Low Temperature Sintering of MgO Ceramics |
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| ZHANG Wenzheng,LIU Zheng,MAO Pingli,WANG Zan.Effect of Fluorides on Low Temperature Sintering of MgO Ceramics[J].Journal of Ceramics,2011,32(2). | |
| Authors: | ZHANG Wenzheng LIU Zheng MAO Pingli WANG Zan |
| Affiliation: | ZHANG Wenzheng 1,2 LIU Zheng 1 MAO Pingli 1 WANG Zan 2 (1.Shenyang University of Technology,Shenyang Liaoning 110178,China,2.Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China) |
| Abstract: | The sintering and microstructure development of magnesia ceramics containing different fluorides in different sintering conditions have been investigated.The experimental results show the addition of MgF2 markedly promoted densification at relatively low temperature and grain growth.It means MgF2 facilitates the sintering of MgO at low temperature.Sintering driving force in the system of MgO-MgF2 is the total interface free energy,which decreases with the decreasing of the total surface of grains. |
| Keywords: | fluoride magnesium oxide densification sintering |
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