制备了Al2O3/Al-Cu和Al2O3/Al-Cu-Si原位复合材料,采用SEM观察显微组织,XRD分析物相,EDS分析相所含元素.初步结果表明,原位合金化和原位颗粒共同强化金属基体是可行的,合金元素Cu和Si出现在基体中,细小增强颗粒Al2O3呈弥散分布

3.1 概述 3.2 晶体结构与空间点阵 3.3 晶系与布拉菲点阵 3.4 布拉菲点阵和复合点阵 3.5 晶向指数和晶面指数 3.6 晶带及晶面间距 3.7 晶胞特征 3.8 密堆结构的间隙 3.9 金属合金的晶体结构 3.10 陶瓷的晶体结构 3.11 高分子的晶体结构

血管支架的研究背景及其现状 血管支架的工作原理、为何需要降解 可降解血管支架 1.聚乳酸血管支架 2.铁合金血管支架 3.镁合金血管支架面临的挑战及其研究进展 4.锌合金血管支架面临的挑战及其解决思路

研究了硼纤维增强钛基复合材料中纤维断裂后的影响区域,在裂纹扩展统计理论的基础上,经过理论分析和实验得到了1种合理的简化模型.结果表明,复合材料中1根纤维断裂后引起的应力再分布和应力集中明显影响其邻近的未断裂纤维.伴随着贯穿纤维的原始裂纹逐步扩展,其影响区域(即纤维的影响长度区域)亦逐步扩大.当增强纤维的体积分数较小时,金属基体的加工硬化也影响纤维和复合材料的破坏过程

在分析金属薄膜磁电阻传感器非线性产生原因的基础上,提出了几种设计AMR(各向异性磁电阻)薄膜磁电阻传感器时改善其线性度的方法.用直流磁控溅射方法制备了Ni80Fe20和Ni65Co35AMR薄膜材料;用微加工工艺制做出了几种AMR传感器元件,并给出了测试结果

8.1 Classification of Phase Transformations in Solids 8.2 Features of Phase Transformations in Solids 8.3 Thermodynamics for Phase Transformation in Solids 8.4 Kinetics for Phase Transformation in Solids

9.1 Reverse Eutectoid Transformations 9.1.1 Intro to austenite in Fe-C system 9.1.2 Formation mechanism of austenite 9.1.3 Kinetics of austenitization 9.1.4 Austenite grain growth and its control 9.2 Eutectoid Transformations

9.1 Reverse Eutectoid Transformations 9.1.1 Intro to austenite in Fe-C system 9.1.2 Formation mechanism of austenite 9.1.3 Kinetics of austenitization 9.1.4 Austenite grain growth and its control 9.2 Eutectoid Transformations

9.1 Reverse Eutectoid Transformations 9.1.1 Intro to austenite in Fe-C system 9.1.2 Formation mechanism of austenite 9.1.3 Kinetics of austenitization 9.1.4 Austenite grain growth and its control 9.2 Eutectoid Transformations 9.2.1 Intro to Pearlite in Fe-C system 9.2.2 Formation mechanism of pearlite 9.2.3 Kinetics of pearlite formation 9.2.4 Mechanical properties

10.1 Martensite Transformations 10.1.1 Characteristics 10.1.2 Thermodynamics 10.1.3 Crystallographic Theory 10.1.4 Kinetics 10.2 Martensite Transformations in Steels 10.2.1 Crystal structure of martensite in steels 10.2.2 Microstructure of martensite in steels 10.2.3 Stabilization of austenite 10.2.4 Mechanical properties 10.3 Bainite Transformations 10.3.1 Characteristics and Microstructures 10.3.2 Transformation Mechanism 10.3.3 Kinetics and influencing factors 10.3.4 Mechanical properties