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为改善铬刚玉浇注料的抗热震性能而又不显著降低其强度,在铬刚玉浇注料中加入了氧化锆微粉,采用弹性模量测定仪、X射线衍射仪、扫描电镜和压汞仪等研究了氧化锆微粉对浇注料烧结性能及抗热震性能的影响。结果表明:氧化锆微粉可促进铬刚玉浇注料的烧结。当氧化锆微粉掺量在1%～3%(质量分数,下同)时,可提高浇注料的抗热震性能且不降低材料的强度;当掺量在4%～5%时,可显著提高其抗热震性能,但强度出现明显下降。
Abstract：To improve the thermal shock resistance(TSR) of Cr2O3-Al2O3 castable,ZrO2 micro-powder(ZM) was added into Cr2O3-Al2O3 castable.The effect of ZM on the sintering and TSR of Cr2O3-Al2O3 castable was investigated by elasticity modulus tester,X-ray diffractometer,scanning electron microscope and mercury porosimeter.The results show that the ZM can promote the sintering of Cr2O3-Al2O3 castable.When the addition of ZrO2 is between 1% and 3%(in mass,the same below),the TSR of Cr2O3-Al2O3 castable increases without impairing its mechanical strength.When the addition of ZrO2 is between 4% and 5%,how-ever,the TSR of Cr2O3-Al2O3 castable increases,while causing the mechanical strength decreases obviously.
[1]李红霞.耐火材料手册[M].北京:冶金工业出版社,2007:510–514.LI Hongxia.Handbook of Refractories(in Chinese).Beijing:Metal-lurgy Industry Press,2007:510–514.
[2]程瑛,张立明,马兆宏,等.用后钢包透气砖显微结构分析[J].耐火材料,2008,42(1):54–57.CHENG Ying,ZHANG Liming,MA Zhaohong,et al.Refractories(in Chinese),2008,42(1):54–57.
[3]郜桥刚.钢包底吹用刚玉–尖晶石透气砖[J].耐火与石灰,2009,34(5):26–27.GAO Qiaogang.Refract Lime(in Chinese),2009,34(5):26–27.
[4]张晖,孙加林.铝镁质钢包透气砖热震损毁研究[J].耐火材料,2009,43(6):409–411.ZHANG Hui,SUN Jialin.Refractories(in Chinese),2009,43(6):409–411.
[5]OSAMU N,TSUNENOBU S,SHINJI A.Porous plug“ALP-4”with superior spalling resistance[J].Shinagawa Tech Rep,2001,44:69–74.
[6]贺智勇,洪彦若,李林,等.氧化锆对刚玉–尖晶石浇注料热震稳定性的影响[J].耐火材料,2004,38(2):73–75.HE Zhiyong,HONG Yanruo,LI Lin,et al.Refractories(in Chinese),2004,38(2):73–75.
[7]贾全利,叶方保,钟香崇.ZrO2加入量对刚玉–尖晶石浇注料性能的影响[J].耐火材料,2009,43(1):27–30.JIA Quanli,YE Fangbao,ZHONG Xiangchong.Refractories(in Chi-nese),2009,43(1):27–30.
[8]陈肇友.化学热力学与耐火材料[M].北京:冶金工业出版社,2005:580.CHEN Zhaoyou.Chemical Thermodynamics of Refractories(in Chi-nese).Beijing:Metallurgy Industry Press,2005:580.
[9]TEFANIG,POPOVIS,MUSIS.Influence of Cr2O3 on the stability of low temperature t-ZrO2[J].Mater Lett,1998,36(5/6):240–244.
[10]侯谨,张义先,王诚训,等.新型耐火材料[M].北京:冶金工业出版社,2007:95.HOU Jin,ZHANG Yixian,WANG Chengxun,et al.New-type Refrac-tories(in Chinese).Beijing:Metallurgy Industry Press,2007:95.
[11]OSAMU M.Chemistry of alumina cement[J].Taikabutsu Overseas,2007,27(4):222–227.
[12]王维邦.耐火材料工艺学[M].北京:冶金工业出版社,2004:201.WANG Weibang.Refractory Technology(in Chinese).Beijing:Met-allurgy Industry Press,2004:201.
[13]KINGERY W D.陶瓷导论[M].北京:中国建筑工业出版社,1982:282–284.KINGERY W D.Introduction to Ceramics(in Chinese).Beijing:China Building Industry Press,1982:282–284.
[14]GHOSH A,HALDAR M K,DAS S K.Effect of MgO and ZrO2 additions on the properties of magnesite–chrome composite refractory[J].Ceram Int,2007,33(5):821–825.
基本信息:
DOI：10.14062/j.issn.0454-5648.2011.03.009
中图分类号:TQ175.73
引用信息:
[1]刘辉敏,刘缙.氧化锆对铬刚玉浇注料烧结及抗热震性能的影响[J].硅酸盐学报,2011,39(03):436-440.DOI:10.14062/j.issn.0454-5648.2011.03.009.
2011-03-15
2011-03-15