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板状刚玉粒度和加入量对高铁镁砂-烧结刚玉复合材料性能的影响 被引量:1

Effects of tabular corundum particle size and addition on properties of iron-rich magnesia-sintered corundum composite
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摘要 以粒度为3~1、≤1、≤0.088 mm的高铁镁砂,≤0.088 mm的高纯镁砂为主要原料,分别研究了不同加入量(质量分数分别为3%、6%、9%、12%、15%)和不同粒度(3~2、2~1、≤1 mm)的烧结板状刚玉对试样性能的影响,并分析其物相组成和显微结构。结果表明:当烧结板状刚玉细粉加入量为6%(w)时,试样的显气孔率16%,体积密度2.99 g·cm-3,常温耐压强度80.9 MPa,荷重软化温度1609℃,抗热震性达到20次,综合性能最好;改变加入刚玉的粒度,可以控制刚玉反应速度,同时影响高铁镁砂中Fe的扩散;铁在方镁石中固溶度大,高铁镁砂的引入可以起到方镁石改性的作用;由于铁氧化物的存在,高铁镁砂-刚玉体系在高温下易于促进镁铝尖晶石和铁铝尖晶石固溶体的形成。 Specimens were prepared using iron-rich magnesia (3-1,≤1,and ≤0.088 mm)and high purity magnesia (≤0.088 mm)as the main starting materials.The effects of particle size (3 -2,2 -1,and≤1 mm)and addition (3%,6%,9%,12%,and 15%,in mass,the same hereinafter)of sintered tabular co-rundum on specimen properties were studied.The phase composition and microstructure of the specimens were analyzed.The results show that specimen with 6% corundum possesses the best performance:ap-parent porosity 16%,bulk density 2.99 g·cm -3,cold crushing strength 80.9 MPa,refractoriness under load 1 609 ℃,thermal shock resistance 20 cycles;adjusting particle size of corundum can control the reac-tion speed and influence the diffusion of Fe in iron-rich magnesia;Fe has a large solid solution in periclase thus iron-rich magnesia can modify periclase;the formations of magnesium aluminate spinel and hercynite solid solution are accelerated at high temperatures in the iron-rich magnesia-corundum system at the pres-ence of i ron oxi des.
出处 《耐火材料》 CAS 北大核心 2014年第6期432-435,共4页 Refractories
关键词 高铁镁砂 烧结刚玉 镁铝尖晶石 铁铝尖晶石 水泥窑 iron-rich magnesia sintered corundum magnesium aluminate spinel hercynite cement kilns
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  • 1李红霞,王金相.水泥窑用碱性耐火材料无铬化的技术进展[J].中国水泥,2004(10):79-82. 被引量:29
  • 2陈肇友,柴俊兰,李勇.氧化亚铁与铁铝尖晶石的形成[J].耐火材料,2005,39(3):207-210. 被引量:50
  • 3郭宗奇,Josef NIEVOLL.氧化镁-铁铝尖晶石耐火材料在水泥回转窑中的应用[J].中国水泥,2007(5):63-67. 被引量:32
  • 4Johnson R E,Arnulf Muan. Phase eguilibria in the system CaO-MgO -Iron Oxide at 1 500 ℃ [ J ]. Journal of American Ceramic Society, 1965,48 (7) :359 - 364.
  • 5Paladino A E. Phase equilibria in the ferrite region of the system FeO -MgO-Fe2O3 [ J]. Journal of American Ceramic Society, 1960,43 (4) :183 -191.
  • 6El-Geassy A A. Gaseous reduction of MgO-doped Fe2O3 compacts with carbon-monoxide at 1 173- 1 473 K [ J ]. ISIJ International, 1996,36(11) :1 328-1 337.
  • 7Buchebner G,Harnuth H,Molami T.Magnesia-hercynite bricks,an innovative burnt basic refractory[C] //Proc of UNITECR' 06,Berlin,Germany,1999:201-203.
  • 8Murolo P.First work experience with Japanese periclase-spinel bricks in the burning zone of an Italian cement kiln[J].Interceram[Special Issue on Refractories] ,1984,33:6.
  • 9Contreras J E, Castillo G A, Microstructure and properties of hercynite-magnesia-calcium zirconate refractory mixtures [J]. Materials Characterization,2005,54( 11 ) :354-359.
  • 10Psblo M B. Mechanochemical synthesis of hercynite[J]. Materials Chemistry and Physics. ,2002,76(8):104-109.

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  • 1张君博,张刚,肖国庆.铁铝尖晶石的制备[J].硅酸盐通报,2007,26(5):1003-1006. 被引量:25
  • 2Guangping Liu,Nan Li,Wen Yan,Changhe Gao,Wei Zhou,Yuanyuan Li.Composition and microstructure of a periclase–composite spinel brick used in the burning zone of a cement rotary kiln[J]. Ceramics International . 2014
  • 3(美) 金格瑞 (Kingery,W.D.),(美) 鲍恩 (Bowen,H.K.),(美) 乌尔曼 (Uhlmann,D.R.),著.陶瓷导论(M)高等教育出版社, 2010
  • 4[美]阿尔珀(A·M· Alper) 编,李广平 译.碱性耐火材料(M)冶金工业出版社, 1980
  • 5Hang Chen,Xuan Pu Dong,Xiao Qing Xiong,Rong Ma,Shu Qun Chen,Zi Tian Fan.??High Performance Iron-Rich Magnesia-Spinel Composite for Burning Zone of Cement Rotary Kiln(J)Advanced Materials Research . 2012 (476)
  • 6Yin G Y,Li Y,Sun J L,et al.Synthesis Mechanism of Mg4.68Al2.64Zr1.68O12. Journal of the Chinese Ceramic Society . 2013
  • 7W. Roger Cannon,Terence G. Langdon.??Creep of ceramics(J)Journal of Materials Science . 1983 (1)
  • 8袁林,王杰曾.新型干法水泥窑用耐火材料的现状与发展[J].耐火材料,2010,44(5):383-386. 被引量:22
  • 9崔庆阳,薛群虎,寇志奇,丰文祥,李洪波.水泥回转窑烧成带用耐火材料的最新研究[J].耐火与石灰,2011,36(1):1-4. 被引量:6
  • 10马淑龙,李勇,孙加林,王志发.氮气气氛下铁铝尖晶石的合成[J].硅酸盐学报,2011,39(3):424-429. 被引量:24

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