通过热重分析,研究了高温下Zn引发剂以金属和氧化物两种形式的引入对Al-Si合金直接氧化生长过程的影响.结果表明:当合金中Zn含量超过3%(质量分数)时,能生成Al2 O3/Al复合材料,且随着Zn含量的增加,孕育期随之缩短,复合材料的生成量也随之增加;ZnO粉末覆盖量的最佳值为31 mg/cm2,超过此值时,孕育期会随之延长,复合材料的生成量也随之减少.同时还发现,覆盖ZnO粉末比添加Zn金属具有显著优势,更有助于Al2 O3/Al复合材料以光滑方式氧化生长,形成细化胞状晶团,提高组织的均匀性和致密度.
参考文献
| [1] | Newkirk M S;Urquhart A W;Zwicker H R et al.Formation of LanxideTM ceramic composite materials[J].Journal of Materials Research,1986,1(01):81-89. |
| [2] | Urquhart A W .Novel reinforced ceramics and metals:a review of Lanxide's composite technologies[J].Materials Science and Engineering,1991,A144(01):75-82. |
| [3] | 赵敬忠,金志浩.Lanxide陶瓷基复合材料的研究进展[J].硅酸盐通报,2002(06):46-52. |
| [4] | Nagelberg A S;Antolin S .Formation of Al2 O3 /metal composites by the directed oxidation of molten aluminum-magnesium-silicon alloys(Part Ⅱ): growth kinetics[J].Journal of the American Ceramic Society,1992,75(02):455-462. |
| [5] | 周曦亚;沈玉辉;陈建峰 等.SiO2对铝合金熔体直接氧化的影响[J].复合材料学报,1997,14(03):9-14. |
| [6] | 陈建峰;沈玉辉;高钦 .反应自生复合(RSC)材料生长的EVLS机制提出与研究[J].复合材料学报,1992,9(03):13-18. |
| [7] | Nagelberg A S .Observation on the role of Mg and Si in the directed oxidation of Al-Mg-Si alloy[J].Journal of Materials Research,1992,7(09):265-268. |
| [8] | Sindel M;Nahum A T .Influence of magnesium-aluminum spinal on the directed oxidation of molten aluminum alloys[J].Journal of the American Ceramic Society,1990,73(09):2615-2618. |
| [9] | Partington EC.;Terry B.;Grieveson P. .Self-sustaining oxidation of liquid aluminium and its alloys containing magnesium and silicon[J].Journal of Materials Science,1998(9):2447-2455. |
| [10] | Vlach K C;Salas O;Jayaram V et al.A thermogravimetric study of the oxidative growth of Al2 O3/Al alloy composites[J].Journal of Materials Research,1991,6(09):1982-1995. |
| [11] | 袁森,都业志,王武孝.SiO2表面覆盖剂对铝合金熔体直接氧化生长的影响[J].中国有色金属学报,2001(z1):13-16. |
| [12] | Hanabe M;Jayaram V;Bhaskaran T A .Growth of Al2 O3/Al composites from Al-Zn alloys[J].Acta Materialia,1996,44(02):819-829. |
| [13] | Shamsudin R.;Hand RJ. .Al2O3/Al composites produced by directed melt oxidation using Zn containing external dopants[J].Journal of Materials Science,2001(7):1613-1619. |
| [14] | 谷臣清,张钱城,赵敬忠.铝合金熔体原位氧化构筑模糊界面复相陶瓷/金属复合材料[J].复合材料学报,2004(02):34-39. |
| [15] | 成守权,赵敬忠,谷臣清.ZnO引发剂对铝合金直接熔融氧化生长的影响[J].硅酸盐学报,2004(06):671-674. |
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