研究了非计量比合金Zr(Cr0.2Mn01V0.05Ni0.65)x(x=1.8～2.4)的相结构和电化学性质.结果发现,欠计量比时,随x变小,合金中C14型Laves相增多,第二相Zr7Ni10减少至消失,并出现了新相Zr9Ni11.而过计量比时,随x增加,合金中C14型Laves相和Zr7Ni10相都相应减少至消失,合金Zr(Cr0.2Mn0.1V005Ni0.65)24由C15型Laves单相组成.过计量比合金具有较好的活化性能,但非计量比合金的放电容量普遍低于计量比合金,而且非计量比对合金高倍率放电性能的提高影响不大.
参考文献
| [1] | Boschung E.;Chartouni D.;Schlapbach L.;Zuttel A. .Hydriding properties of the Zr(Cr0.5Ni0.5)(alpha) (1.75 <=alpha <= 3.5) alloy system[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):294-298. |
| [2] | Züttel Andreas;Chartouni Daniel;Gross Karl et al.Structural- and hydriding-properties of the Zr(V0.25Ni0.75)α(1 ≤α≤ 4) alloy system[J].Journal of Alloys and Compounds,1997,253-254:587-589. |
| [3] | Kim DM;Lee J.-Y. --;Jang K.-J. -- .Review on the development of AB sub 2 -type Zr-based Laves phase hydrogen storage alloys for Ni-MH rechargeable batteries in the Korea Advanced Institute of Science and Technology[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1999(0):583-592. |
| [4] | Gao X P;Song D Y;Zhang Y S et al.Characteristics of the superstoichiometric C15-type Laves phase alloys and their hydride electrodes[J].Journal of Alloys and Compounds,1995,231:582-586. |
| [5] | Yang K;Chen D M;Chen L;Guo Z X .Microstructure,electrochemical performance and gas-phase hydrogen storage property of Zr0 9Ti0 1[J].Journal of Alloys and Compounds,2002,333:184-189. |
| [6] | 李嵩,季世军,孙俊才.元素Mn、V对AB2型贮氢电极合金ZrCr0.7Ni1.3相结构和电化学性质的影响[J].大连海事大学学报,2003(04):79-82,90. |
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%