| 电沉积法制备Fe与La、Ce的非晶态合金及其晶化动力学研究 |
| The Preparation of Amorphous Alloys in Iron with Lanthanum, Cerium by Electrodeposition and its Study of Crystallization Kinetics |
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| 摘要: |
| 关键词: 稀土(La,Ce)合金 非晶态镀层 电沉积 晶化动力学 |
| 基金项目: |
| Abstract: Fe-La, Fe-Ce, Fe-La-P, Fe-Ce-P and Fe-P alloys were obtained from aqueous solutions by using optimized electroplaing solutions and process conditions. The experimental results show that these alloys (Fe-La-P, Fe-Ce-P and Fe-P) have amorphous structure. The crystallization activation energy and kinetics equation of three kinds amorphous coatings have been determined by DSC method. The results indicated that the crystallization activation energy of Fe-P, Fe-La-P, Fe-Ce-P amorphous coatings are 175.2, 370.1, 434.6kJ·mol-1 respectively. The crystallization mechamism of three kinds amorphous alloys may be expressed by Avrami-Erofeev equation (n=1), the kinetics equation is dα/dT=A/Φ e-E/RT(1-α). |
| Keywords: rare-earth(La,Ce) alloy amorphous coating electrodeposition crystallization kinetics |
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| 张云黔,史鸿运,邓洁,董俊.电沉积法制备Fe与La、Ce的非晶态合金及其晶化动力学研究[J].无机化学学报,2002,18(8):807-810. |
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