| 1. | The on - line liquid infiltration joining of 2d c / sic with different holding times at 1300t was carried out . the strength and the microstructure of the joints were studied , the joining mechanism was analyzed and the best holding time was obtained
在1300 、不同保温时间条件下对二维c sic复合材料进行连接，并进行强度测试及显微结构观察，分析连接机理，得到最佳保温时间。 |
| 2. | The on - line liquid infiltration joining of 3d c / sic at different joining temperatures with the holding time of 45 min was carried out . the strength and the microstructure of the joints were studied , the joining mechanism was analyzed and the best joining temperature was obtained
在保温时间为45min 、不同连接温度条件下对三维c sic复合材料进行连接，并进行强度测试及显微结构观察，分析连接机理，得到最佳连接温度。 |
| 3. | The simulation results conform with the test results , which certificate the model . the liquid infiltration - extrusion process is simulated lively by the superiority and powerful nonlinear solution function of the fem software , the perfect contours and curves are obtained
并且利用有限元软件的优越性和强大的非线性求解功能，对液态浸渗挤压过程进行了很好的模拟，利用软件完善的后处理功能，得到了完美的等值线和带状云图。 |
| 4. | The fiber reinforced ceramic matrix composites are porosity , and the porosity will decrease with the time of vapor deposition increase during the manufacture of the materials . based on the characteristic , an on - line liquid infiltration joining process fit for the composites were investigated
利用化学气相沉积制备的纤维增韧陶瓷基复合材料具有一定的孔隙率，而且这些孔隙率在材料的制备过程随沉积时间增加而减少这一特点，发展一种特别适合于纤维增韧陶瓷基复合材料的在线液相渗透连接方法。 |
| 5. | In this paper , the temperature fields during liquid infiltration extrusion of composites are simulated with the fem , the seepage fields of liquid metal are simulated with the fdm . both the temperature fields and the seepage fields are coupled , the temperature variation curves , infiltration front process curves and velocity variation curves with time are obtained
本文采用有限元法模拟了液态浸渗挤压复合材料浸渗过程温度场，采用有限差分法模拟了液态金属渗流场，将两者间接耦合分析计算，得到了浸渗区域的温度变化曲线、浸渗前沿及浸渗速度随时间变化等曲线。 |
| 6. | In this paper , the numerical simulation problem of the liquid infiltration extrusion technology that includes high pressure infiltration , heat conduction , solidification and large deformation is solved successfully , which provides theoretic basis for the parameters optimization and the application of the process
本文成功地运用有限元分析软件解决了集高压浸渗、热传导、凝固和大变形为一体的液态浸渗挤压工艺过程的数值模拟问题，为该工艺的参数优化和实际应用提供了理论依据。 |
| 7. | The liquid infiltration - extrusion technology , as a new forming method which includes the liquid forging and the solid extrusion , has been developed in recent years . the process in essence is that after liquid metal is infiltrated into the fiber perform under pressure , high pressure is directly applied to it so that the melted metal is to be crystallized and solidified under pressure , and then undergoes large plastic deformation at the liquid - solid state or the state just solidified
液态浸渗挤压是近年来发展起来的一种融液态模锻和固态挤压为一体的新成形工艺，其工艺实质是使液态基体金属在压力下渗入纤维预制体中，发生压力下结晶凝固，并在液-固态或刚凝固态经受大的挤压塑性变形，一次成形出金属基复合材料的型材类制件。 |
| 8. | The on - line liquid infiltration joining of c / sic composite with different conditions was carried out . a kind of ni - base alloy was used as the interlinker and the composites were woven by different ways . by using the three - point bending test , combined with sem , eds , the microstructure and the properties of joints of the c / sic composites were studied
本文采用在线液相渗透连接方法，以ni基合金作为连接剂，在不同连接条件下对不同编织结构的c sic复合材料进行连接，并结合扫描电镜( sem ) 、能谱分析( eds )及三点弯曲强度测试研究了c sic复合材料连接的显微结构与性能。 |
