| 1. | Upwards of 1273k , b2o3 will volatilize gradually and lose the protection to the interphase
而在1273k以上氧化硼挥发，丧失了对界面相的保护作用。 |
| 2. | 2 . the mechanical properties and fracture mode of 3d c / sic depend on the matrix cracks " propagation in interphase
( 2 ) 3dc sic复合材料的力学性能和断裂模式与基体裂纹在界面相区的扩展方式密切相关。 |
| 3. | Implanted b ion in the pyc interphase came into being b4c , and reacted with oxygen and sodium sulfate producing b2o3
预测了b离子注入pyc界面相后，经高温处理生成的碳化硼能够和氧、硫酸钠反应生成氧化硼。 |
| 4. | 2 . thermodynamics and md methods were used to study the mechanism of oxidation and corrosion resistance of pyc interphase by implanting b ion
首次用热力学计算和分子动力学方法研究了pyc界面相注入b离子对c sic复合材料抗氧化性及抗腐蚀性能的影响。 |
| 5. | The simulation results also show that the modulus of interphase has no significant effect on the fiber axial stress , and increased interphase thickness does
对界面相厚度影响的研究表明，从一定程度上来说界面相厚度增加并不会导致应力传体效率相应的提高。 |
| 6. | 4 . the matrix cracks " deflection can occur along the m / i interface , within the interphase and along the i / f interface , which can be predicted by modeling the matrix cracks " defection
( 4 )基体裂纹会在界面相区内的m i界面、界面相内部和i f界面等多个位置发生偏转。 |
| 7. | The changes of microstructure and moduli caused the increasing of fracture toughness and three point bending strength of c / sic and the weakly bonding between fiber and interphase , which is helpful to the cra ck expansion
微结构和模量的变化使得沉积sic后复合材料的断裂韧性和三点弯曲强度提高，纤维和界面相结合减弱，有利于裂纹扩展。 |
| 8. | The fracture toughness and bending strength of c / sic composite were improved notably after the pre - treatment of cp / ci at 2073k . on the basis of the above phenomenon , the effect of pre - treatment on interphase microstructure and mechanical properties of c / sic composites was investigated by md simulation
根据前处理c sic复合材料的断裂韧性和弯曲强度比未处理的提高了30 50的结果，用分子动力学方法研究前处理过程对界面相微观结构和力学性能的影响。 |
| 9. | Agriculture resource gis is developed by three layer system ( user - application - data ) , which will elevate the performance of the system . the user interface is composed of web and maptitude interface , which is aesthetic and simple to operate , what ' s more , it is easy to upgrade to webgis
本文采用用户层、应用层、数据层三层体系结构开发了农业资源地理信息系统，提高了系统的性能。用户界面采用网页与gis软件maptitude界面相结合的方式，美观大方，操作简单，而且便于以后向webgis升级。 |
| 10. | The result of md simulation means that : ( 1 ) the microstructure in the amorphous carbon has no obvious change , the slippage which is parallel to the fiber axes in the graphite slices of the pyc interphase was found ; ( 2 ) bulk moduli of every part of interphase diminished , young ' s moduli in all three direction of amorphous carbon diminished , young ' s moduli of the graphite slices in the direction of parallel to the fiber radial decreased , and ones in the direction of parallel to the fiber axes increased
分子动力学模拟结果表明， ( 1 )界面相内部无定形碳部分微结构无明显变化，石墨片层部分沿纤维轴向滑移； ( 2 )界面相模量发生变化，界面相区域各部分的体积弹性模量降低，无定形碳部分及石墨片层部分垂直于纤维轴向的杨氏模量降低，平行于纤维轴向的杨氏模量升高。 |
