| 1. | Combustion synthesis and hydrogen storage properties of mg - al - ni 三元合金及其储氢性能 |
| 2. | Numerical analysis of ternary alloy molten pool heated by electron gun 电子枪加热三元合金熔池的数值分析 |
| 3. | Technical requirements and inspection methods for pb - sn - cu alloy antifriction coating Pb ? sn ? cu三元合金减摩镀层技术要求和检验方法 |
| 4. | The i - phases directly nucleate and grow from melt of cooling mg - zn - y ternary alloys Mg - zn - y三元合金熔体在室温冷却过程中,准晶相直接从液相形核、长大。 |
| 5. | The hydriding results show that the substitution of ni by cr could decrease the absorption temperature and improve the kinetics of hydriding Cr的添加降低了mg - ni - cr三元合金的吸放氢温度,改善了纳米晶合金的吸氢动力学性能。 |
| 6. | By comparing the activation area of binary alloy with that of ternary alloy catalyst , the introduction of multi - metal alloy catalyst is found to be able to increase the number of activation site 比较二元合金催化剂同三元合金催化剂的活性面积,发现采用多金属催化剂还能提高活性点的数目。 |
| 7. | According to the characters of transformations in solids , the ma process can be divided into three stages : physical fragment izing stage , diffusion and solid solution stage , and carbide forming stage 根据相变特点将fe - cr - c三元合金的机械合金化过程分为三个阶段:物理粉碎阶段、扩散固溶阶段和碳化物析出阶段。 |
| 8. | Based on kohler ' s ternary solution model and miedema ' s model for calculating the heat of formation of binary solution , the integral equation has been established for calculating activity coefficients in ternary alloys and intermetallics 根据korler和miedema模型,推导了三元合金各组元活度系数的对称计算公式,确定了经验常数a的值。 |
| 9. | In this thesis , previous research works on mg - based hydrogen storage materials have been reviewed . on this basis , the following works have been carried out : firstly , the part of ni in mg2ni alloys was partial substituted by the transition element cr . the effect of element cr and mechanical alloying on the phase structure and hydrogen storage properties of mg2nii . xcrx ( x = 0 , 0 本文在对国内外镁基储氢材料的研究进展进行了文献综述的基础上,着重对以下两方面内容进行了研究: ( 1 )用过渡族元素cr对mg _ 2ni合金进行了元素替换,研究了mg - ni - cr三元合金的晶体结构、微观特征以及吸氢动力学性能。 |