La-Mg-Ni体系富镁角的热力学优化与计算

稀有金属材料与工程, 2010, 39(9): 1618-1622.

La-Mg-Ni体系富镁角的热力学优化与计算

张旭 ^1, , 李谦 ^2, , 陈双林 ^3, , 张捷宇 ^4, , 周国治 ^5,

1.上海大学,上海,200072

2.上海大学,上海,200072

3.上海大学,上海,200072;CompuTherm,LLC,Madison,WI 53719,USA

4.上海大学,上海,200072

5.上海大学,上海,200072;北京科技大学,北京,100083

基金项目: 国家自然科学基金(50804029) 教育部全国优秀博士学位论文作者专项基金(200746) 国家科技部"863"计划(2007AA05Z118)

关键词： CALPHAD , La-Mg-Ni三元体系 , 相图 , 热力学优化与计算

Thermodynamic Assessment for the Mg-Rich Corner of the La-Mg-Ni System

运用CALPHAD方法系统地对La-Mg-Ni三元体系富镁角进行热力学优化与计算.选取置换溶液模型描述液相,三亚点阵模型描述La2Mg17-xNx,定化学计量比化合物模型描述LaMg2Ni,最终获得一组具有良好自恰性的热力学模型与参数.通过相图软件Pandat计算获得该区域的液相投影面图、673和773 K下的等温截面相图以及平衡反应等,且计算得到的相图和热力学数据与试验数据较好地吻合.

参考文献

[1]	肖学章,王新华,陈立新,李寿权,汤滢,陈长聘.La1.8Ca0.2Mg14Ni3+x%Ti合金的微结构和储氢性能[J].稀有金属材料与工程,2007(05):790-793.
[2]	Li Q;Lin Q;Jiang L J;Chou K C .[J].Journal of Alloys and Compounds,2004,368:101.
[3]	黄丹,郑定山,肖荣军,蒋卫卿,郭进.La1+xMg2-xNi9（x=0, 0.5, 1.0, 1.5）合金的储氢性能及电化学性能研究[J].稀有金属材料与工程,2006(12):1991-1994.
[4]	Dong X P;Zhang Y H;Lü F X et al.[J].International Journal of Hydrogen Energy,2007,32:4949.
[5]	Renaudin G;Guenee L;Yvon K .[J].Journal of Alloys and Compounds,2003,350:145.
[6]	Di Chio M;Ziggiotti A;Baricco M .[J].Intermetallics,2008,16:102.
[7]	Oesterreicher H;Bittner H .[J].Journal of the Less-Common Metals,1980,73:339.
[8]	赵娟,李建平,郭永春,杨忠,杨觉明,梁民宪.新型Mg-Gd-Y合金富镁角的相图计算及实验测定[J].稀有金属材料与工程,2008(02):281-285.
[9]	Effenberg G;Aldinger F;Rogl P.MSI[M].Stuttgart:Federal Republic of Germany,2001:130.
[10]	Kazuhide Tanaka;Yoshisada Kanda .Improvement of hydrogen storage properties of melt- spun Mg-Ni-RE alloys by nanocrystallization[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1999(0):521-525.
[11]	Karonic V V;Kazakov D N;Andrievskii R A et al.[J].Inorganic Materials,1984,20(02):207.
[12]	Feufel H;Krishnaiah M;Sommer F et al.[J].Journal of Phase Equilibria,1994,15(03):303.
[13]	Schmid J.;Sommer F. .Heat capacity of liquid La-Mg-Ni alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):216-223.
[14]	De Negri S;Giovannini M;Saccone A .[J].Journal of Alloys and Compounds,2005,397:126.
[15]	De Negri S;Giovannini M;Saccone A .[J].Journal of Alloys and Compounds,2007,439:109.
[16]	Guo C P;Du Z M .[J].Journal of Alloys and Compounds,2004,385:109.
[17]	Islam F;Medraj M .The phase equilibria in the Mg-Ni-Ca system[J].Calphad: Computer Coupling of Phase Diagrams and Thermochemistry,2005(4):289-302.
[18]	Du Z.;Zhang W.;Wang D. .Thermodynamic assessment of the La-Ni system[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):209-213.
[19]	Sun D;Gingl F;Enoki H et al.[J].Acta Materialia,2000,48:2363.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

La-Mg-Ni体系富镁角的热力学优化与计算

Thermodynamic Assessment for the Mg-Rich Corner of the La-Mg-Ni System

参考文献