本文采用有机泡沫浸渍法制备了Y2O3/ZrO2双层复合、Y2O3/Y2O3-ZrO2/ZrO2三层复合及Y2O3和ZrO2单相泡沫陶瓷,分析了两种复合泡沫陶瓷层间的结合及各层显微结构随烧结温度的变化,并与单相氧化物陶瓷进行了对比.结果表明:双层复合陶瓷层间有较大缝隙,这是因为两种氧化物陶瓷烧结不同步造成的.三层复合陶瓷中Y2O3-ZrO2混合中间层的存在减弱了Y2 O3、ZrO2烧结不同步引起的层间应力,层间结合明显改善,并大大减少了泡沫陶瓷表面宏观裂纹.两种复合陶瓷的ZrO2内层的烧结程度都低于单相ZFO2,这主要是因为先于ZrO2烧结的Y2O3外层阻碍了内部气体的排出从而阻碍ZrO2的烧结所致.
参考文献
| [1] | Montanaro L;Jorand Y;Fantozzib G et al.Ceramic Foams by Powder Processing[J].Journal of the European Ceramic Society,1998,18(09):1339-1350. |
| [2] | Chen F W;Huang X B;Wang Y et al.Investigation on Foam Ceramic Filter to Remove Inclusions in Revert Superalloy[J].Materials Leters,1998,34(3-6):372-376. |
| [3] | Reticulated Macroporous Ceramic Foam Supported Tio_2 For Photocatalytic Applications[J].Materials Letters,2009(3/4):461-463. |
| [4] | Schwartzwalder K;Somers A V .Method of Making Porous Ceramic Articles[P].United States Patent:US3090094,1963-3-21. |
| [5] | H.X.Peng;Z.Fan .Microstructure of ceramic foams[J].Journal of the European Ceramic Society,2000(7):807-813. |
| [6] | Santos EP.;Santilli CV.;Pulcinelli SH. .Formation of zirconia foams using the thermostimulated sol-gel transition[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2002(1/3):143-150. |
| [7] | 苏鹏,郭学益,冀树军.SiC泡沫陶瓷的凝胶注模制备与表征[J].人工晶体学报,2009(04):983-988. |
| [8] | 张小珍,周健儿,宋福生,胡学兵,江瑜华.凝胶注模成型Al2O3-ZrO2泡沫陶瓷的制备与表征[J].人工晶体学报,2008(05):1205-1209. |
| [9] | Han Y S;Li J B;Wei Q M et al.The Effect of Sintering Temperatures on Alumina Foam Strength[J].Ceramics International,2002,28(07):755-759. |
| [10] | 郭晓倬,董建新,胡尧和,谢锡善.高温合金冶炼过程中泡沫陶瓷过滤器的作用[J].北京科技大学学报,1999(03):245-247. |
| [11] | Kuang J.P.;Harding R.A. .Investigation into refractories as crucible and mould materials for melting and casting #sigma#-TiAl alloys[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2000(9):1007-1016. |
| [12] | Saha R L;Nandy T K;Misra R D et al.On the Evaluation of Stability of Rare Earth Oxides as Face Coats for Investment Casting of Titanium[J].Materials Science and Engineering:B-Solid-State Materials for Advanced Technology,1990,21(03):559-566. |
| [13] | Kostov A;Friedrich B .Predicting thermodynamic stability of crucible oxides in molten titanium and titanium alloys[J].Computational Materials Science,2006(2):374-385. |
| [14] | Holcome C E;Serandos T R .Consideration of Yttria for Vacuum Induction Melting of Titanium[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1983,14B:497-499. |
| [15] | H. Saari;J. Beddoes;D.Y. Seo .Development of directionally solidified gamma-TiAl structures[J].Intermetallics,2005(9):937-943. |
| [16] | 张花蕊,高明,唐晓霞,张虎.定向凝固过程中Ti-47Al-2Cr-2Nb合金与Y2O3陶瓷的相互作用[J].金属学报,2010(07):890-896. |
| [17] | Du Y;Jin Z P;Huang P Y .Thermodynamic Calculation of the Zirconia-Calcia System[J].Journal of the American Ceramic Society,1992,75(11):3040-3048. |
| [18] | Du Y;Jin Z P;Huang P Y .Phase Equilibria in the Quasiternary System ZrO2-Y2O3-Mg[J].Chinese Journal of Metal Science and Technology,1990,6(01):13-20. |
| [19] | 陆佩文.无机材料科学基础[M].武汉:武汉理工大学出版社,2007:291-294. |
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