Results showed that pure molybdenum plate with the fibrous microstructures possessed a good quality of ductility, and its fracture behavior was quasi-cleavage fracture. 结果表明:纤维状组织的高纯钼板具有良好的室温韧性,其断裂表现为准解理断裂;
Histological findings in the experimental side included active proliferation of osteoblast in exterior periosteum, fibrous connection, cartilage and newly formed bone trabeculae between fragments of the fracture at the end of the 2nd week; 组织学:实验侧术后2周骨外膜成骨细胞增生活跃,骨折断端间纤维连接,并出现了软骨组织和新生骨小梁;
The design ideas of in-situ fibrous monolithic structure and laminated structure are proposed for further improving the fracture toughness of whisker-reinforced ceramic composites. Both of the composites with these special structures have very high toughness and fracture work. 为了进一步提高晶须增韧陶瓷基复合材料的断裂韧性,提出了纤维独石结构和层状结构的复合材料的设计思路,这两类特殊结构的复合材料都具有非常高的断裂韧性和断裂功。
In-situ formation fibrous polytype AIN composite ceramic material was prepared from AlN-Y_2O_3-SiO_2 system. In comparison with AlN ceramics, both bending strength and fracture toughness of the composite material are much bettered. Microstructural observation revealed that a lot of epitaxial growth fibrous AlN polytype occurred in matrix. 本文采用AlN-Y2O3-SiO2,系制备出原位生长纤维状AlN多型体陶瓷复合材料,对其显微结构和生长机制进行了观察和研究,并测量其力学性能。
It is found by analysing the properties of mixed structure by isothermal quenching and fracture micro-appearances that impact toughness of U-notch impact specimens corresponds with the micro-appearance of the fibrous zone in fracture. 通过对60Si2MnA钢等温复合淬火组织性能及试样断口的微观形貌分析发现,梅氏冲击试样的冲击韧性与其断口纤维区的微观形貌具有较好的对应关系。
Membrane area and region of fibrous tissue within the bone like tissue generation, fracture broken end of fibrous callus formation, visible piece of cartilage tissue, fibrous tissue proliferation and a large number of trabecular bone formation. 膜区及机化区的纤维组织内有骨样组织生成,骨折断端处有纤维性骨痂形成,可见成片的软骨组织,纤维组织增生和大量骨小梁形成。
Atherosclerosis ( AS), and the complication, cardio-cerebrovascular diseases, are the major causes of cardio-cerebrovascular accidents in clinical. The primary pathological basic is that the fibrous cap of vulnerable plaque ( VP) rupture or fracture, and then lead to thrombus formation. 动脉粥样硬化(atherosclerosis,AS)及其并发的心脑血管疾病,是临床上心脑血管事件的主要原因之一,其主要病理基础为易损斑块(VulnerablePlaque,VP)纤维帽破裂或断裂,导致血栓形成。