采用溶胶凝胶技术,以氧氯化锆/乙醇/水为反应体系在氢化锆表面制备氧化锆膜层作为防氢渗透层,研究了溶胶pH值对氧化锆膜层的物相组成、截面形貌及阻氢性能的影响.利用涡流测厚仪、扫描电子显微镜(SEM)、X射线衍射仪(XRD)分析测试了氧化锆膜层的厚度、截面形貌及相结构.通过真空脱氢实验测试评估膜层的阻氢性能.结果表明,在选取的溶胶pH值为1～9范围内,膜层的厚度在7.6 ～14.8μm之间变化,膜层的氢渗透降低因子(PRF)值在9.8 ～11.5之间变化,膜层厚度和膜层的氢渗透降低因子(PRF)值都随着pH值增大呈现出先增加后减小的变化趋势.当pH为5时,膜层厚度达到最大值14.8 μm,膜层的PRF值达到11.5,膜层与基体结合紧密,膜层连续完整、致密均匀.pH值变化对膜层物相组成没有显著影响,膜层由单斜相M-ZrO1.8和四方相T-ZrO1.8组成,其中以单斜相M-ZrO1.8为主.
参考文献
| [1] | N.G. Primakov;V.A. Rudenko;V.V. Kazarnikov .Nonuniform swelling and hydrogen redistribution in zirconium hydride under neutron irradiation[J].International journal of hydrogen energy,1999(9):805-811. |
| [2] | Kenji Konashi;Tamio Ikeshoji .A molecular dynamics study of thermal conductivity of zirconium hydride[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(0):279-282. |
| [3] | 王建伟,王力军,陈伟东,张建东.铌对氢化锆裂纹行为和氢含量的影响[J].稀有金属,2012(01):61-66. |
| [4] | 邓光霞,赵旭山,王树茂,李志念,刘晓鹏,蒋利军.Ti-Zr系吸氢材料的研究[J].稀有金属,2013(02):237-242. |
| [5] | 陈伟东,闫淑芳,闫国庆,张亚增.氧化气氛对氢化锆表面防氢渗透层的影响[J].稀有金属,2013(03):418-421. |
| [6] | 张华锋,杨启法,王振东,刘小舟.氢化锆高温抗氢渗透涂层研究[J].原子能科学技术,2005(z1):83-87. |
| [7] | Oskarsson M.;Sodervall U.;Andersson U.;Pettersson K.;Ahlberg E. .Pre-transition oxidation behaviour of pre-hydrided Zircaloy-2[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2001(3):315-328. |
| [8] | Masanobu Miyake;Masayoshi Uno;Shinsuke Yamanaka .On the zirconium-oxygen-hydrogen ternary system[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,1999(s12):233-241. |
| [9] | Takanori Nishizaki;Mihoko Okui;Ken Kurosaki .Electronic states of hydrogen in zirconium oxide[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2002(0):307-312. |
| [10] | Xu N.;Cao YW.;Yao JN.;Wang EG.;Sun M. .Influence of pH on structure and photochromic behavior of nanocrystalline WO3 films[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2000(1/2):81-84. |
| [11] | 张姝娟,李洁,李文章,陈启元.pH值对聚合物前驱体法制备WO3薄膜光电性质的影响[J].材料导报,2011(14):20-23. |
| [12] | Maldonado A.;Canetas-Ortega J.;Zironi E.P.;Hernandez R.;Patino R.;Solorza-Feria O.;Asomoza R. .Effect of the pH on the physical properties of ZnO:In thin films deposited by spray pyrolysis[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,1999(4):331-344. |
| [13] | Houng B;Huang CL;Tsai SY .Effect of the pH on the growth and properties of sol-gel derived boron-doped ZnO transparent conducting thin film[J].Journal of Crystal Growth,2007(2):328-333. |
| [14] | Masaru Nakamichi;Hiroshi Kawamura;Takema Teratani .Characterization of chemical densified coating as tritium permeation barrier[J].Journal of Nuclear Science and Technology,2001(11):1007-1013. |
| [15] | 刘凯,赵小如,赵亮,姜亚军,南瑞华,魏炳波.pH值对溶胶-凝胶法制备的掺铝氧化锌薄膜光电性能的影响[J].人工晶体学报,2009(03):585-590,596. |
| [16] | 李海滨,梁开明,顾守仁.溶胶一凝胶法制备的二氧化锆粉中t-ZrO2的稳定性[J].清华大学学报(自然科学版),2001(10):13-15. |
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%