罗旭东,曲殿利,张国栋,王闯,钟鑫宇

• 1:辽宁科技大学高温材料与镁资源工程学院

摘要(Abstract)：

以低品位菱镁矿与天然硅石为原料,利用固相反应烧结制备镁橄榄石。通过添加氧化铬,分析氧化铬对镁橄榄石材料相组成、晶胞参数、微观结构及常温性能的影响。用X射线衍射、扫描电镜及用X'pert plus软件对烧后镁橄榄石试样的晶相组成、显微结构和晶相晶胞参数进行表征和计算。结果表明:利用活性氧化镁粉与硅石经1500℃高温煅烧可以制备出镁橄榄石材料。氧化铬加入导致镁橄榄石相的晶胞参数和晶胞体积的增大。Cr3+的电场作用,减弱镁橄榄石中Mg-O的键力,导致镁橄榄石中顽火辉石相的增多。适量氧化铬促进镁橄榄石烧结,提高镁橄榄石的致密度和常温强度,确定氧化铬最佳加入量为(0.8～1.2)%。

关键词(KeyWords)： 低品位菱镁矿;硅石;镁橄榄石;氧化铬

Abstract:

Keywords:

基金项目(Foundation): 辽宁省镁资源保护办公室资助项目(2011)

作者(Author): 罗旭东,曲殿利,张国栋,王闯,钟鑫宇

DOI: 10.13289/j.issn.1009-6264.2013.01.001

参考文献(References)：

• [1]王晓红,高险峰.镁橄榄石砖在玻璃熔窑中的开发应用[J].硅酸盐通报,1997,16(1):77-79.WANG Xiao-hong,GAO Xian-feng.Exploitation and application of frsterite bricks in the glass smelting kiln[J].Bull Chin Ceram Soc,1997,16(1):77-79.
• [2]窦刚,李友胜,李胜,等.含石灰石的镁橄榄石质中间包涂料的性能研究[J].耐火材料,2010,44(2):108-110.DOU Gang,LI You-sheng,LI Sheng,et al.Properties of limestone-contaning forsterite-based coating for tundish[J].Refractories,2010,44(2):108-110.
• [3]Tavangarian F,Emadi R.Synthesis and characterization of spinel-forsterite nanocomposites[J].Ceram Int,2011,37(7):2543-3548.
• [4]邓承继,卫迎锋,祝洪喜,等.MgO加入量和烧成温度对镁橄榄石材料物相组成和性能的影响[J].武汉科技大学学报,2010,33(4):381-383.DENG Cheng-ji,WEI Ying-feng,ZHU Hong-xi,et al.Effects of MgO addition and sintering temperature on phase composition and properties offorsterite refractory[J].Journal of Wuhan University of Science and Technology,2010,33(4):381-383.
• [5]Berry A J,Walker A M,Hermann J,et al.Titanium substitution mechanisms in forsterite[J].Chemical Geology,2007,242(1-2):176-186.
• [6]Ni S,Chou L,Chang J.Preparation and characterizaiton of forsterite(Mg2SiO4)bioceramics[J].Ceram Int,2007,33(1):83-88.
• [7]Kharaziha M,Fathi M H.Synthesis and characterization of bioactive forsterite nanopowder[J].Ceram Int,2009,35(6):2449-2454.
• [8]范建良,郭守国,史凌云,等.合成镁橄榄石的矿物学研究[J].人工晶体学报,2007,36(6):1431-1434.FAN Jian-liang,GUO Shou-guo,SHI Ling-yun,et al.Study on the mineralogy of synthetic forsterite[J].Journal of Synthetic Crystals,2007,36(6):1431-1434.
• [9]Sanosh K P,Balakrishnan A,Francis L,et al.Sol-Gel synthesis of forsterite nanopowders with narrow particle size distribution[J].J Alloys Compd,2010,495(1):113-115.
• [10]Saberi A,Negahdari Z,Alinejad B,et al.Synthesis and characterization of nanocrystalline forsterite through citratie-nitrate route[J].Ceram Int,2009,35(4):1705-1708.
• [11]Okada K,Ikawa F,Isobe T,et al.Low temperature preparation and machinablity of porous ceramics from talc and foamed glass particle[J].J EuroCeram Soc,2009,29(6):1283-1291.
• [12]Kosanovi'c C,Stubicˇar N,Tomai'c N.Synthesis of a forsterite powder by combined ball milling and thermal treatment[J].J Alloys Compd,2005,389(1-2):306-309.
• [13]Li J,Wang Q,Liu J H,et al.Sythesis process of forsterite refractories by iron ore tailings[J].Journal of Environmental Science,2009,21(S):92-95.
• [14]Mustafa E,Khalil N,Gamal A.Sintering and microstructure of spinel-forsterite bodies[J].Ceram Int,2002,28(6):663-667.
• [15]Shi Z M,Liang K M,Gu S R.Effect of CeO2 on phase transformation towards cordierite in MgO-Al2O3-SiO2 system[J].Mater Lett,2001,51(1):68-72.
• [16]Liu S F,Zeng Y P,Jiang D L.Effect of CeO2 addition on the properties of cordierite-bonded porous SiC ceramics[J].J Euro Ceram Soc,2009,29(9):1795-1802.
• [17]Guo W,Lu H B,Feng C X.Influence of La2O3 on preparation and performance of porous cordierite from rice husk[J].J Rare Earth,2010,28(4):614-617.
• [18]罗旭东,曲殿利,张国栋,等.菱镁矿风化石与叶腊石合成堇青石的结构表征[J].无机化学学报,2011,27(3):434-438.LUO Xu-dong,QU Dian-li,ZHANG Guo-dong,et al.Structure characterization of cordierite synthesized from decomposed magnesite pyrophyllite[J].Chin J Inorg Chem,2011,27(3):434-438.
• [19]Wu R P,Ruan Y Z,Yu Y.Characterization of Cordierite Synthesized from Aluminum Waste Slag[J].J of Synthetic Crystals,2007,36(5):1091-1095.
• [20]于岩,阮玉忠,吴任平.氧化锌添加剂对固相反应合成镁铝尖晶石的影响[J].材料热处理学报,2008,29(4):48-51.YU Yan,RUAN Yu-zhong,WU Ren-ping.Influence of ZnO addition on magnesium aluminate spinel synthesized by solid state reaction[J].Transactions of Materials and Heat Treatment,2008,29(4):48-51.
• [21]沈阳,阮玉忠,于岩,等.氧化钒对钛酸铝材料结构及性能的影响[J].材料热处理学报,2008,29(5):69-71,75.SHEN Yang,RUAN Yu-zhong,YU Yan,et al.Influence of V2O5 addition on structure and performance of aluminater titanate synthesized fromaluminium slag[J].Transactions of Materials and Heat Treatment,2008,29(5):69-71,75.
• [22]Walker A M,Woodley S M,Slater B,et al.A computational study of magnesium point defects and diffusion in forsterite[J].Phys Earth PlanetInter,2009,172(1-2):20-27.

文章评论(Comment)：