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三元系穩(wěn)定性化學勢相圖是定量分析mo_2c-si固態(tài)置換反應(yīng)反應(yīng)路徑的重要手段。
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三元系穩(wěn)定性化學勢相圖是定量分析mo_2c-si固態(tài)置換反應(yīng)反應(yīng)路徑的重要手段。
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通過固態(tài)置換反應(yīng)原位制備的mosi_2-sic復合材料的微觀組織不可能是內(nèi)聯(lián)型組織(interpenetratingstructure)。
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 昆明理工大學博士學位論文2002.5摘要6.初步發(fā)現(xiàn)了一種新的固態(tài)置換反應(yīng)形貌結(jié)構(gòu):螺旋共生束集型結(jié)構(gòu)。
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 實驗數(shù)據(jù)分析和理論計算表明,本文提出的“速率控制元素非平行擴散模型”可以很好地解釋mo_2c-si固態(tài)置換反應(yīng)的微觀界面結(jié)構(gòu)。
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,平行束集狀sic的生長屬于非平衡系統(tǒng)的自組織現(xiàn)象,固態(tài)置換反應(yīng)界面模型的嚴密分析還需要引入非平衡態(tài)熱力學的概念方法。
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 近年來國內(nèi)已經(jīng)開始在實際工程中采用無粘結(jié)部分預應(yīng)力混凝土扁梁框架結(jié)構(gòu),但是目前對這種結(jié)構(gòu)形式的抗震研究工作還不完善,理論研究已滯后于工程應(yīng)用的需要,因此深入進行扁梁框架結(jié)構(gòu)的研究,在經(jīng)濟合理的情況下確保該結(jié)構(gòu)的抗震安全性具有重要的理論意義和應(yīng)用價值。
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 利用模型進行的1200,mo_2c-si擴散偶mo_4si_3/t相界面的分析計算,為反應(yīng)路徑的細致分析奠定了堅實基礎(chǔ),這也是該理論模型應(yīng)用于實際束集型結(jié)構(gòu)分析的引人注目之處。
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 利用模型進行的1200,mo_2c-si擴散偶mo_4si_3/t相界面的分析計算,為反應(yīng)路徑的細致分析奠定了堅實基礎(chǔ),這也是該理論模型應(yīng)用于實際束集型結(jié)構(gòu)分析的引人注目之處。