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SiCW对反应烧结多孔Al2TiO5-SiCW复合材料的影响

, PP. 1270-1276

Keywords: 多孔材料,Al2TiO5,SiCw,反应烧结,复合材料

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Abstract:

以γ-AlOOH、TiO2和SiCw为原料,通过反应烧结制备了多孔Al2TiO5-SiCw复合材料,研究了SiCw对Al2TiO5-SiCw复合材料物相、微观组织结构、孔隙率和抗压强度的影响。结果表明:反应产物中主要物相有Al2TiO5、Al6Si2O13、TiC和SiO2。由于晶须分解速度快,SiCw可全部与TiO2反应生成TiC和SiO2。添加SiCw,一方面显著细化了Al2TiO5基复合材料的微观组织,生成的细小规则的TiC晶粒和存在于Al2TiO5晶界处的Al6Si2O13有利于抑制Al2TiO5晶粒长大,提高其抗压强度。另一方面,因为SiCw改变了原料中颗粒之间的堆积方式,使孔径增大、孔隙率显著提高。生成的一定量的SiO2对晶粒产生黏结,使得Al2TiO5基复合材料的孔洞骨架密实,提高了抗压强度,但当SiCw加入量多时,由于出现较多的玻璃相,会降低抗压强度。

References

[1]  Teruaki O, Yosuke S, Masayuki I, et al.Acoustic emission studies of low thermal expansion aluminum-titanate ceramics strengthened by compounding mullite [J].Ceramic International, 2007, 33(5): 879-882.
[2]  Low I M, Oo Z, O'Connor B H.Effect of atmospheres on the thermal stability of aluminium titanate [J].Physica B: Condensed Matter, 2006, 385-386(1): 502-504.
[3]  Jiang L, Chen X Y, Hong G M, et al.Effect of additives on properties of aluminium titanate ceramics [J].Transactions of Nonferrous Metals Society of China, 2011, 21(7): 1574-1579.
[4]  Naghizadeh R, Rezaie H R, Golestanifard F.The influence of composition, cooling rate and atmosphere on the synthesis and thermal stability of aluminum titanate [J].Materials Science and Engineering: B, 2009, 157(1-3): 20-25.
[5]  Skala R D, Li D, Low I M.Diffraction, structure and phase stability studies on aluminium titanate [J].Journal of the European Ceramic Society, 2009, 29(1): 67-75.
[6]  Makoto T, Kazumi K, Naoki K, et al.Effect of grain boundary cracks on the corrosion behaviour of aluminium titanate ceramics in a molten aluminium alloy [J].Corrosion Science, 2012, 54: 90-96.
[7]  Chen C H, Awaji H.Temperature dependence of mechanical properties of aluminum titanate ceramics [J].Journal of the European Ceramic Society, 2007, 27(1): 13-18.
[8]  Pratapa S, Umaroh K, Weddakarti E.Microstructural and decomposition rate studies of periclase-added aluminum titanate-corundum functionally-graded materials [J].Materials Letters, 2011, 65(5): 854-856.
[9]  Yong Y, You W, Wei T, et al.In situ alumina/aluminum titanate bulk ceramic composites prepared by SPS from different structured composite powders [J].Journal of Alloys and Compounds, 2009, 481(1-2): 858-862.
[10]  Zhu S M, Shen Y S, Wang J L, et al.Preparation and performance of Al2TiO5-TiO2-SO2 honeycomb ceramics by doping rare earth [J].Journal of Rare Earths, 2007, 25(4): 457-461.
[11]  Oikonomou P, Dedeloudis C H, Stournaras C J, et al.Stabilized tialite-mullite composites with low thermal expansion and high strength for catalytic converters [J].Journal of the European Ceramic Society, 2007, 27(12): 3475-3482.
[12]  Yong Y, You W, Wei T, et al.In situ porous alumina/aluminum titanate ceramic composite prepared by spark plasma sintering from nanostructured powders [J].Scripta Materialia, 2009, 60(7): 578-581.
[13]  Cabrero J, Audubert F, Pailler R.Fabrication and characterization of sintered TiC-SiC composites [J].Journal of the European Ceramic Society, 2011, 31(3): 313-320.
[14]  Liu H, Tian H.Mechanical and microwave dielectric properties of SiCf/SiC composites with BN interphase prepared by dip-coating process [J].Journal of the European Ceramic Society, 2012, 32(10): 2505-2512.
[15]  尉 磊, 汪长安, 黄 勇, 等.SiCpl/ZrB2超高温陶瓷的制备及性能 [J].硅酸盐学报, 2008, 36(1): 85-88.Wei Lei, Wang Chang'an, Huang Yong, et al.Preparation and porperties of SiCpl/ZrB2 ultra-high temperature ceramics [J].Journal of the Chinese Ceramic Society, 2008, 36(1): 85-88.
[16]  Zan Q F, Dong L M, Wang C, et al.Improvement of mechanical properties of Al2O3/Ti3SiC2 multilayer ceramics by adding SiC whiskers into Al2O3 layers [J].Ceramics International, 2007, 33(3): 385-388.
[17]  Park W S, Choi D J, Kim H D.Modification of inner pores with silicon carbide whiskers onto the Al2O3 substrate by CVI process [J].Key Engineering Materials, 2005, 287: 212-219.
[18]  Bertram B D, Gerhardt R A.Effects of frequency, percolation, and axisymmetric microstructure on the electrical response of hot-pressed alumina-silicon carbide whisker composites [J].Journal of the American Ceramic Society, 2011, 94(4): 1125-1132.
[19]  Jin S B, Shen P, Lin Q L, et al.Growth mechanism of TiC x during self-propagating high-temperature synthesis in an Al-Ti-C system [J].Crystal Growth and Design, 2010, 10(4): 1590-1597.
[20]  Gu D D, Shen Y F, Meng G B, et al.Growth morphologies and mechanisms of TiC grains during selective laser melting of Ti-Al-C composite powder [J].Materials Letters, 2009, 63(29): 2536-2538.
[21]  陈 捷, 阮玉忠, 沈 阳, 等.利用铝型材厂污泥制备自结合钛酸铝/莫来石复相材料 [J].硅酸盐通报, 2009, 28(4): 693-696.Chen Jie, Ruan Yuzhong, Shen Yang, et al.Synthesis of self-bonded a luminium titanate-mullite materials with waste aluminium sludge [J].Journal of the Chinese Ceramic Society, 2009, 28(4): 693-696.
[22]  Melendez M J J, Jimenez M M, Domnguez R A, et al.High temperature mechanical behavior of aluminium titanate-mullite composites [J].Journal of the European Ceramic Society, 2001, 21(1): 63-70.

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