| 1. | Thermodynamic calculation analysis of interfacial reaction between sn - ag and cu substrate 基板界面反应的热力学计算 |
| 2. | In contrast , very little is reported on theory study of interfacial reaction in sic / ti composites 然而迄今为止,对sic ti基复合材料的界面反应的研究特别是理论研究很不深入。 |
| 3. | In order to investigate the interfacial reaction of high - k thin film on si substrate , the high - k samples were studied by xps as a function of annealing temperature 为了考察high - k物质与si基底的界面反应,以温度为函数,对样品进行xps光电子谱线测定。 |
| 4. | It is shown that the interfacial reactions of scs - 6 sic / tial , scs - 6 sic / ti2alnb and scs - 6 sigti40 are not so severe as in other scs - 6 sic / ti composites 从热力学上预测了不同复合材料体系的界面反应性,表明sic tial 、 sic ti _ 2alnb 、 sic ti40等体系的界面反应较轻。 |
| 5. | By means of dynamic finite element method , impact deformation of csp samples , the processes of matrix heat , decomposition and interfacial reactions of oxidant particulates , are studied 结合动力有限元方法,分析研究了htpb和nepe推进剂试样撞击变形过程中基体粘性加热及氧化剂颗粒热分解情况。 |
| 6. | The result is useful for us to choose the ti matrices . based on quantum chemistry , a two - step dynamic model of interfacial reaction in scs - 6 sic / ti composites was built up 在量子化学研究的基础上,建立了scs - 6sic ti基复合材料界面反应的反应动力学模型,即反应是通过原子态的中间态分二个步骤进行的。 |
| 7. | Therefore , in this paper , the interfacial reactions of sic / ti composites were studied by means of quantum chemistry , thermodynamics , kinetics , diffusion dynamics and experiment 因此本文运用量子化学、热力学、动力学、扩散等理论,并采用实验观察,对sic ti基复合材料界面反应进行了多方面的研究,揭示了界面反应的本质。 |
| 8. | Wetting between reinforcement sicp and the molten metal is often poor when it is blow 1000 ' c ; 2 . during the processing , many phases of the interfacial reaction products have negative influence on the properties of the produced composites Sic颗粒增强复合材料中界面反应生成的有害杂质相较多,对复合材料的性能的影响较大。可以通过添加mg 、 li等活泼的合金元素,对增强体颗粒进行表面预处理来改善润湿性。 |
| 9. | The main work includes four contents as follow : 1 ) the electrodes annealed in various temperatures were studied . with x - ray diffraction spectroscopy ( xrd ) and sims , the interfacial reaction is analyzed and a new two - step annealing method is suggested 研究了al单层电极及ti al双层电极与蓝宝石基gan在不同退火条件下的欧姆接触情况,并用x射线衍射谱( xrd ) ,二次离子质谱( sims )对界面固相反应进行了分析。 |
| 10. | When sintered at 1050c , the wear resistance of the composites were better than that of the ferroalloy under both low and heavy load without oil lubrication . the wear resistance , hardness , and other mechanical properties of the composites with nickel coated sic were better than those of the composites with bare sic particles . however , when sintered at 1100c , interfacial reaction became so acute that the properties of the composites with nickel coated sic particles was worse than those of the composites with bare sic particles 试验结果表明:与铁合金相比,在1050时烧结时,加入适量的sic后,耐磨性有较大的提高;而且加入镀镍sic的复合材料的耐磨性、硬度和拉伸强度等力学性能比加入相同含量的未镀sic的材料的性能要好;在1100烧结时,由于界面反应的加剧,含有镀镍sic材料的性能反而比含有未镀sic材料的性能差。 |