为研究液态Al初期氧化产物的相组成及其氧化机理,采用环境透射电镜(E-TEM)对纳米Al粉末在720℃时的氧化进行了原位观察.差热分析(DTA)和TEM形貌观察结果表明,纳米Al粉末表面存在5-6 nm厚的非晶Al2O3膜,该非晶膜在350-550℃间转变为γ-Al2O3.纳米Al粉末在10-4 Pa高真空下熔化后冷却,可以得到无氧化膜的固态Al.再次熔化后的Al在720℃,10-2 Pa氧分压下氧化,直接形成棒状的纳米α-Al2O3.同时,XRD检测结果表明,熔融的块状金属Al在720℃,10-2 Pa氧分压下氧化,也得到α-Al2O3.液态Al的这种特殊氧化结果与其液态结构以及液态Al蒸发成气体再氧化有关.
参考文献
[1] | Wu C M L,Han G W.Mater Charact,2007; 58:416 |
[2] | Pint B A,Moser J L,Tortorelli P F.J Nucl Mater,2007;367-370:1150 |
[3] | Xian A P,Gong G L.J Electron Mater,2007; 36:1669 |
[4] | Gong G L,Xian A P.Acta Metall Sin,2007; 43:759(贡国良,冼爱平.金属学报,2007; 43:759) |
[5] | Giuranno D,Arato E,Ricci E.Chem Eng Trans,2011; 24:571 |
[6] | Zhang J S,Li N.Corros Sci,2007; 49:4154 |
[7] | Nemchinsky V.J Phys,2012; 45D:465201 |
[8] | Regan M J,Tostmann H,Pershan P S,Magnussen O M,Dimasi E,Ocko B M,Deutsch M.Phys Rev,1997; 55B:10786 |
[9] | Levin I,Brandon D.J Am Ceram Soc,1998; 81:1995 |
[10] | Sleppy W C.J Electrochem Soc,1961; 108:1097 |
[11] | Moskovits M.Oxid Met,1972; 5:1 |
[12] | Impley S A,Stephenson D J,Nicholls J R.Mater Sci TechLond,1988; 4:1126 |
[13] | Bergsmark E,Simensen C J,Kofstad P.Mater Sci Eng,1989; A120:91 |
[14] | Shimizu K,Kobayashi K,Thompson G E,Wood G C.Oxid Met,1991; 36:1 |
[15] | Puri P,Yang V.J Phys Chem,2007; 111C:11776 |
[16] | Hasani S,Panjepour M,Shamanian M.Oxid Met,2012;78:179 |
[17] | Kishita K,Sakai H,Tanaka H,Saka H,Kuroda K,Sakamoto M,Watabe A,Kamino T.J Electron Microsc,2009; 58:331 |
[18] | Eisenreich N,Fietzek H,Juez-Lorenzo M D,Kolarik V,Koleczko A,Weiser V.Propell Explos Pyrot,2004; 29:137 |
[19] | Klumpes R,Marée C H M,Schramm E,Wit J H W.Werkst Korros,1996; 47:619 |
[20] | Grabke H J.Intermetallics,1999; 7:1153 |
[21] | Josefsson H,Liu F,Svensson J E,Halvarsson M,Johansson L G.Mater Corros,2005; 56:801 |
[22] | Kitajima Y,Hayashi S,Nishimoto T,Narita T,Ukai S.Oxid Met,2010; 73:375 |
[23] | Iida T,Guthrie R I L,translated by Xian A P,Wang L W.The Physical Properties of Liquid Metals.Beijing:Science Press,2005:20(Iida T,Guthrie R I L著,冼爱平,王连文译.液态金属的物理性质.北京:科学出版社,2005:20) |
[24] | Yang Z Y,Xian A P.Chin J Power Sources,2011; 35:66(杨泽焱,冼爱平.电源技术,2011:35:66) |
[25] | Castello P,Ricci E,Passerone A,Costa P.J Mater Sci,1994; 29:6104 |
[26] | Arato E,Ricci E,Costa P.J Mater Sci,2005; 40:2133 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%