The liquid-phase coating method was used to deposit Y2O3 ceramic on the surface of α-Al2O3. The coatedAl2O3p/6061Al composites were produced using squeeze casting technology. The microstructure and tensile properties of the composites were analysed and studied. The results showed that the coated Al2O3 particles are able to disperse homogeneously in the aluminum liquid. The microstructure of the composites is more even in comparison with that of as-received powders. The tensile testing indicated that mechanical properties of the coated-Al2O3p/6061Alcomposites are better than those of uncoated particles. In the composite with 30% volume fraction, the tensile strength, yield strength as well as elongation is increased by 29.8%, 38.4% and 10.3%, respectively. The SEM analysis of fracture indicated that the dimples of the coated-Al2O3p/6061Al composites are more even.
参考文献
| [1] | DUAN-JEN WANG;SHINN-TYAN WU .THE WETTABILITY OF COPPER-CONTAINING ALUMINUM MELT ON SAPPHIRE[J].Acta Metallurgica et Materialia,1995(8):2917-2920. |
| [2] | KL ry;CRado;NEustathopoulos .[J].Metallurgical and Materials Transactions,1996,27:3181. |
| [3] | MKoashi;TChoh .[J].Materials Transactions,1990,31(12):1101. |
| [4] | LEspie;BDrevet;NEustathopoulos .[J].Metallurgical and Materials Transactions,1994,25:599. |
| [5] | YuqingWANG;Benlian ZHOU.[J].Journal of Materials Processing Technology,1998(01):78. |
| [6] | AkiraKitahara;Shigeru Akiyama;Hidetoshi Ueno .[J].pn Inst,1990,40:305. |
| [7] | LVRamanathan;PCRNunes.in Proc of the Confon Control of Interfaces in Metal Ceramic Composites eds RYFishman[C].SGFishman TMS Warrendale,1994:333. |
| [8] | SKang;BSChun;CWWon;HYSohn .[J].Journal of Materials Science,1995,30:3883. |
| [9] | KHaik;GCLee;SAhn.in Proc of the Conf on Light Mater for Transportation System eds NJKimPohang University of Science[C].Technology PohangKorea,1993:773. |
| [10] | RRaj;APearce;CMKennefuck .[J].Acta Metallurgica Et Materialia,1991,39:3187. |
| [11] | Jsingh;SKGoel;UNSMathur;MLKapoor.in Proc of the Conf on Advances in Composite Materialsed PRamakrishnan[J].Oxford IBH New Delhi India,1991:281. |
| [12] | DYDing;JCRao;DZWang .[J].Materials Science and Engineering,2000,279:138. |
| [13] | JPRocher;JMQuenisset;RNaslain .[J].Journal of Materials Science,1989,24:2697. |
| [14] | GaohuiWU .[P].China Patent 94114284 X in Chinese |
| [15] | Zhiqiang Yu;Gaohui Wu;Dongli Sun;Longtao Jiang .Coating of Y_2O_3 additive on Al_2O_3 powder and its effect on the wetting behaviour in the system Al-2O_(3p)/Al[J].Materials Letters,2003(20):3111-3116. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%