| 1. | Atomic displacement reaction 原子排代反应 |
| 2. | The mechanism of solid - state displacement reaction has been studied , the solid - state displacement reaction path has been analyzed , the mechanical properties of composites has been tested Mo - si - c三元系稳定性化学势相图是定量分析mo _ 2c - si固态置换反应反应路径的重要手段。 |
| 3. | Therefore , it is impossible that the microstructure of mosi2 - sic composites prepared by solid - state displacement reaction are interpenetrating structure . 6 因此,在1200通过固态置换反应原位制备的mosi _ 2 - sic复合材料的微观组织不可能是内联型组织( interpenetratingstructure ) 。 |
| 4. | A new type of structure of the solid - stale displacement reactions which named spiral - mtergrowth - aggregate structure was discovered in the mo2c - si diffusion couple and was considered as the result of spinodal - decomposition continuous phase - transformation 昆明理工大学博士学位论文2002 . 5摘要6 .初步发现了一种新的固态置换反应形貌结构:螺旋共生束集型结构。 |
| 5. | 4 . experimental data analysis and theoretical calculation indicated that the interface micro - structure of the solid - state displacement reaction between mo2c and si can be explained properly by the new theoretical model : rate - control - elements convergent diffusing model 实验数据分析和理论计算表明,本文提出的“速率控制元素非平行扩散模型”可以很好地解释mo _ 2c - si固态置换反应的微观界面结构。 |
| 6. | 7 . the precise interface analysis shows that the growth of the parallel rod - aggregate sic is self - organiae appearance of non - equilibrium system . the precise analysis of interlace model of solid - state displacement reaction needs method of non - equilibrium thermodynamic 7 .精致界面模型分析指出,平行束集状sic的生长属于非平衡系统的自组织现象,固态置换反应界面模型的严密分析还需要引入非平衡态热力学的概念方法。 |
| 7. | At the same time , it brings the greater displacement reaction , lower energy - dissipation capacity and badly ductility ability etc . the unbonded partially prestressed concrete flat - beam frame structure has been used in the practice project in our country , but the aseismatic study of this structure is not perfect at present , study on theory is lagged behind the demand of engineering apply . it has important theoretic meaning and applied value to go deep into the examinational study about the prestressed concrete flat - beam frame structures 近年来国内已经开始在实际工程中采用无粘结部分预应力混凝土扁梁框架结构,但是目前对这种结构形式的抗震研究工作还不完善,理论研究已滞后于工程应用的需要,因此深入进行扁梁框架结构的研究,在经济合理的情况下确保该结构的抗震安全性具有重要的理论意义和应用价值。 |
| 8. | Moreover , reaction path analysis was accomplished on the fundamental base of the theoretical calculation for mojsi / t phase - interface in the diffusion couple mo2c - si at 1200c . 5 . interface stability analysis of solid - state displacement reaction shows that the layered structure of solid - state displacement reaction between mo2c and si ( fig . 6 . 8 ) is not stable 利用模型进行的1200 , mo _ 2c - si扩散偶mo _ 4si _ 3 / t相界面的分析计算,为反应路径的细致分析奠定了坚实基础,这也是该理论模型应用于实际束集型结构分析的引人注目之处。 |
| 9. | The stabilized chemical potential diagrams combined with the equilibrium phase diagrams of mo - si - c ternary system arid the principles of thermodynamic , kinetic , mass - balance could be applied to analyzing and judging reaction paths of in situ synthesis of mosi2 - sic composites through solid - state displacement reactions theoretically . 3 该相图结合平衡相图和热力学、物料平衡、动力学原则,可以作为分析和判断固态置换反应原位合成mosi _ 2 - sic复合材料反应路径的理论依据之一,并从理论上分析了固态置换反应原位合成mosi _ 2 - sic复合材料可能的反应路径。 |
| 10. | A new interface - perturbation model of solid - state displacement reactions ternary system is suggested and the interface - stability criterion is derived in the form of chemical potential if the chemical potential of rate - control - element at frontier of tiny perturbative zone goes up less than 20 . 7 % , linear interface will grow up stablly and form layered structure ; if it goes up more than 20 . 7 % , linear interface is not stable and will form aggregate structure 通过建立界面扰动模型,推导了三元固态置换反应系界面稳定性的化学势梯度判据。结果表明:如果扰动微区前沿速率控制元素的化学势梯度升高小于20 . 7 ,平面界面稳定长大,将形成层状结构;若大于20 . 7 ,平面界面不稳定长大,将形成束集型结构。 |