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[1]陈常连,王宏全,季家友,等.添加氧化钙的硅酸锆陶瓷的性能[J].武汉工程大学学报,2013,(11):59-64.[doi:103969/jissn16742869201311013]
　CHEN Chang\|lian,WANG Hong\|quan,JI Jia\|you,et al.Performance of zirconium silicate ceramic dopped calcium oxide[J].Journal of Wuhan Institute of Technology,2013,(11):59-64.[doi:103969/jissn16742869201311013]
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添加氧化钙的硅酸锆陶瓷的性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年11
页码:
59-64
栏目:
资源与土木工程
出版日期:
2013-11-30

文章信息/Info

Title:
Performance of zirconium silicate ceramic dopped calcium oxide
文章编号:
16742869(2013)11005906
作者:
陈常连; 王宏全; 季家友; 胡名卫; 夏浩孚; 林慧; 黄志良
武汉工程大学材料科学与工程学院，湖北 武汉 430074
Author(s):
CHEN Chang\|lian; WANG Hong\|quan; JI Jia\|you; HU Ming\|wei; XIA Hao\|fu; LIN Hui; HUANG Zhi\|liang
School of Material Science and Engineering，Wuhan Institute of Technology，Wuhan 430074，China
关键词:
硅酸锆陶瓷; 氧化钙; 稳定氧化锆; 单斜氧化锆; 抗折强度
Keywords:
zirconium silicate;  calcium oxide;  stabilized zirconia;  monoclinic zirconia;  flexural strength
分类号:
TB35
DOI:
103969/jissn16742869201311013
文献标志码:
A
摘要:
以硅酸锆和硝酸钙为原料，采用湿磨的方法实现原料的均匀混合，制备了系列的添加氧化钙的硅酸锆陶瓷，利用阿基米德法和X\|射线衍射技术对硅酸锆陶瓷的密度、物相变化进行了表征，测试了其显微结构和抗折强度，重点讨论氧化钙添加量和烧成温度对硅酸锆陶瓷的影响．结果表明，1 450 ℃和1 500 ℃烧结试样的体积密度随氧化钙添加量改变有较小变化，1 550 ℃烧结试样密度则随着氧化钙添加量增大而减小，密度最大值可达4.19克/立方厘米；样品的物相由硅酸锆和单斜氧化锆及少量稳定氧化锆组成，主晶相为硅酸锆；硅酸锆陶瓷有较多的气孔，是其致密度小的主要原因，硅酸锆陶瓷的主要断裂方式是沿晶断裂；硅酸锆陶瓷的抗折强度随着烧成温度的升高明显降低，随氧化钙添加量增大而先减小再增大，抗折强度最高可达186.0兆帕.关键词：
Abstract:
To mix the raw materials completely, a series of zirconium silicate ceramic dopped calcium oxide were prepared by wet milling, using zirconium silicate and calcium nitrate as the raw material. The phases of the sintered samples were characterized by X\|ray diffraction,and the density was calculated by Archimedes method.We also measured the microstructures and the rupture strength. The influence of calcium content and sintering temperature on zirconium silicate ceramic was also discussed.The results show that, as the additive amount of the calcium oxide increasing, the volume density has a little change in the samples which were sintered respectively at 1 450 ℃ and 1 500 ℃,but decreasing in which were sintered at 1 550 ℃;the maximum of the volume density can reach 4.19 g/cm3; all samples consist of zirconium silicate, monoclinic zirconia and a little stabilized zirconia. The principal crystal phase is zirconium silicate;zirconium silicate ceramic has more pores, which is the main reason of its small density; the main fracture mode of zirconium silicate ceramic is the intergranular fracture; as the sintering temperature increasing,the rupture strength decreases significantly; when the additive amount of the calcium oxide increasing, the rupture strength first decreases to a degree and then rises, and the maximum of the rupture strength can reach 186.0 MPa.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20130929基金项目：湖北省教育厅重点科研项目(No.D20101505)；国家自然科学基金(No.51374155)；国家973预研项目（No.2011CB411901）作者简介：陈常连（1967\|），男，山东青岛人，副教授，博士. 研究方向：先进结构及功能陶瓷.
更新日期/Last Update: 2013-12-03