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刚玉–莫来石–镁铝尖晶石复合陶瓷的原位合成及热震行为
作者:徐晓虹 马雄华 吴建锋 张锋意 张亚祥 李坤 
单位:武汉理工大学材料科学与工程学院 武汉 430070 
关键词:刚玉 莫来石 镁铝尖晶石 复相陶瓷 太阳能热发电材料 
分类号:TB32
出版年,卷(期):页码:2012,40(10):1387-1393
DOI:
摘要:

摘  要:以α-Al2O3、苏州土、滑石和石英为主要原料,采用无压烧结制备了刚玉–莫来石–镁铝尖晶石多相复合陶瓷,研究了烧结温度对样品的体积密度、线性收缩率和吸水率等烧结性能以及机械性能的影响。通过X射线衍射和扫描电子显微镜分析了复相陶瓷热震前后的物相组成和显微结构。结果发现:经1 480 ℃烧结的样品吸水率为0.19%,体积密度为3.06 g/cm3,抗折强度达99.59 MPa,复合材料有较好的热震性能,1 100 ℃空冷热震损失率仅6.9%,可耐受17次热冲击。该复相陶瓷可作为潜在的太阳能热发电材料。

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Abstract: A corundum–mullite–magnesium aluminate spinel composite ceramic as a solar thermal power generation material was fabricated by a pressureless sintering method with alumina (α-Al2O3), Kaolin clay, talc and quartz as main raw materials. The effect of sintering temperature on the sintering properties (i.e., bulk density (Db), linear shrinkage rate (Sf) and apparent porosity (Pa)) and the mechanical properties were investigated. The phase composition and microstructure of the composite ceramics were analyzed by X-ray diffraction and scanning electron microscopy. The results show that the sample sintered at 1 480 ℃ has water absorption of 0.19%, bulk density of 3.06 g/cm3 and bending strength of 99.59 MPa. The composite ceramic has a superior thermal shock resistance. The bending strength loss rate is only 6.9% at 1 100 ℃ by air quenching-strength test, and the sample can endure 17-times thermal shock cycling. This composite ceramic could be used as one of potential solar thermal power materials.

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基金项目:
国家“973”计划(2010CB227105)资助项目
作者简介:
第一作者:徐晓虹(1963—),女,博士,教授。
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参考文献:

References:
[1]  MILLS D. Advances in solar thermal electricity technology [J]. Sol Energy, 2004, 76(1–3): 19–31.
[2]  SACKS M D, PASK J A. Sintering of mullite-containing materials: II, Effect of Agglomeration [J]. J Am Ceram Soc, 1982, 65(2): 70–77.
[3]  SATO T, SHIZUKA M, SHIMADA M. Sintering and characterisation of mullite alumina composites [J]. Ceram Int, 1986, 12(2): 61–65.
[4]  KHAN A, CHAN H M, HARMER M P. Toughness-Curve Behavior of an Alumina-Mullite Composite [J]. J Am Ceram Soc, 1998, 81(10): 2613–2623.
[5]  KHAN A, CHAN H M, HARMER M P. Toughening of an alumina- mullite composite by unbroken bridging elements [J]. J Am Ceram Soc, 2000, 83(4): 833–840.
[6]  CASAS L, MARTINEZ-ESNAONA J M. Microstructural characterisation of an alumina/mullite composite tested in creep [J]. Mater Sci Eng: A, 2004, 368(1–2): 139–144.
[7]  MAZDIYASNI K S, BROWN L M. Synthesis and mechanical properties of stoichiometric aluminium silicate (mullite)[J]. J Am Ceram Soc, 1972, 55(11): 548–552.
[8]  MAZDIYASNI K S, BROWN L M. Damage assessment of alumina fibre-reinforced mullite ceramic matrix composites subjected to cyclic fatigue at ambient and elevated temperatures [J]. J Eur Ceram Soc, 2002, 22(4): 447–452.
[9]  AKSEL C. The role of fine alumina and mullite particles on the thermomechanical behaviour of alumina–mullite refractory materials [J]. Mater Lett, 2002, 57(3): 708–714.
[10]  LUO H H, ZHANG F, ROBERT S. Wear resistance of reaction sintered alumina/mullite composites [J]. Mater Sci Eng: A, 2008, 478(1–2): 270–275.
[11]  TAMARI N, KONDOH I, TANAKA T, et al. Mechanical properties of alumina-mullite whisker composites [J]. J Ceram Soc Jpn, 1993, 101(6): 721–724.
[12]  AKSEL C. The effect of mullite on the mechanical properties and thermal shock,behaviour of alumina–mullite refractory materials [J]. Ceram Int, 2003, 29(2): 183–188.
[13]  AKSEL C. The influence of zircon on the mechanical properties and thermal shock behaviour of slip-cast alumina–mullite refractories [J]. Mater Lett, 2002, 57: 992–997.
[14]  AWAAD M, ZAWRAH M F, KHALIL N M. In situ formation of zirconia–alumina–spinel–mullite ceramic composites [J]. Ceram Int, 2008, 34(2): 429–434.
[15]  CHEN C Y, LAN G S, TUAN W H. Preparation of mullite by the reaction sintering of kaolinite and alumina [J]. J Eur Ceram Soc, 2000, 20(14–15): 2519–2525.
[16]  CHEN Y F, WANG M C, HON M H. Kinetics of secondary mullite formation in kaolin–Al2O3 ceramics [J]. Scr Mater, 2004, 51(3): 231–235.
[17]  RYSHKEWITCH E. Oxide Ceramics [M]. New York: Academic Press, 1960: 257–274.
[18]  SACK M D, PASK J A. Sintering of mullite-containing materials: I, effect of composition [J]. J Am Ceram Soc, 1982, 65(2): 65–70.
[19]  MONTANARO L, ESNOUF C, PERROT C, et al. Sintering of industrial mullites in the presence of magnesia as a sintering aid [J]. J Am Ceram Soc, 2000, 83(1): 189–196.
[20]  IBRAM GANESH, JAGANATHA REDDY G, SUNDARARAJAN G, et al. Influence of processing route on microstructure and mechanical properties of MgAl2O4 spinel [J]. Ceram Int, 2010, 36(2): 473–482.
[21]  CHEN Y F, WANG M C, HON M H. Phase transformation and growth of mullite in kaolin ceramics [J]. J Eur Ceram Soc, 2004, 24(8): 2389–2397.
[22]  KINGERY W D. Factors affecting thermal stress resistance of ceramic materials [J]. J Am Ceram Soc, 1955, 38(1): 3–15.
[23]  FABER K T, HUANG M D, EVANS A G. Quantitative studies of thermal shock in ceramics based on a novel test technique [J]. J Am Ceram Soc, 1981, 64(5): 296–301.
[24]  COLLIN, ROWCLIFFE D. Analysis and prediction of thermal shock in brittle materials [J]. Acta Mater, 2000, 48(8): 1655–1665.
[25]  XU Xiaohong, JIAO Guohao,WU Jianfeng, et al. Effect of Nano-ZrO2 on Microstructure and Thermal Shock Behaviour of Al2O3/SiC Composite Ceramics Used in Solar Thermal Power [J]. J Wuhan Univ Technol, Mater Sci Ed, 2011, 26(2): 285–289.
[26]  XU Xiaohong, JIAO Guohao, WU Jianfeng, et al. Preparation of Al2O3–ZrO2(3Y)–SiC composite ceramics by gelcasting and its properties [J]. J Chin Ceram Soc, 2010, 38(10): 1953–1958.
 

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