| 制备工艺对合成ZrO_(2(f))/NiFe_2O_4复合材料的影响 |
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| 引用本文： | 华中胜,姚广春,马俊飞,张志刚.制备工艺对合成ZrO_(2(f))/NiFe_2O_4复合材料的影响[J].东北大学学报(自然科学版),2011,32(7):976-980. |
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| 作者姓名： | 华中胜 姚广春 马俊飞 张志刚 |
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| 作者单位： | 东北大学材料与冶金学院 |
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| 基金项目： | 国家自然科学基金重点资助项目(50834001) |
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| 摘 要： | 以NiO和Fe2O3为原料采用固相烧结法合成了NiFe2O4尖晶石,通过向其中添加二氧化锆纤维(ZrO2(f))制备了ZrO2(f)/NiFe2O4复合材料.研究了成型压力、烧结温度及烧结时间对复合材料气孔率和抗弯强度的影响,并利用热重分析仪、X射线衍射仪和扫描电子显微镜对复合材料进行了表征.结果表明:在160 MPa成型压力下,于1 300℃烧结6 h制备的ZrO2(f)/NiFe2O4复合材料气孔率较低,具有较高的抗弯强度;复合材料主要由四方相ZrO2和立方相NiFe2O4尖晶石组成;ZrO2(f)未与基体发生反应,避免了过强的界面结合力.
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| 关 键 词： | ZrO2(f) NiFe2O4尖晶石 复合材料 气孔率 抗弯强度 |
Effect of Preparation Technique on Synthesis of ZrO_(2(f))/NiFe_2O_4 Composites |
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| HUA Zhong-sheng,YAO Guang-chun,MA Jun-fei,ZHANG Zhi-gang.Effect of Preparation Technique on Synthesis of ZrO_(2(f))/NiFe_2O_4 Composites[J].Journal of Northeastern University(Natural Science),2011,32(7):976-980. |
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| Authors: | HUA Zhong-sheng YAO Guang-chun MA Jun-fei ZHANG Zhi-gang |
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| Institution: | HUA Zhong-sheng,YAO Guang-chun,MA Jun-fei,ZHANG Zhi-gang(School of Materials & Metallurgy,Northeastern University,Shenyang 110819,China.) |
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| Abstract: | NiFe2O4 spinel was synthesized via solid-state sintering technology using NiO and Fe2O3 as the raw materials,and ZrO2(f)/NiFe2O4 composites were prepared by adding ZrO2(f) fiber into NiFe2O4.The effects of molding pressure,sintering temperature and sintering time on the porosity and bending strength of ZrO2(f)/NiFe2O4 composites were investigated,and the composites were characterized by thermogravimetric analysis,X-ray diffraction and scanning electron microscopy.The results showed that the composites prepa... |
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| Keywords: | ZrO2(f) NiFe2O4 spinel composites porosity bending strength |
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