MgH2 is regarded as a potential hydrolysis material for the hydrogen generation due to its high theoretical hydrogen yield,abundant source on earth and environm
Here,we report a facile method to produce pure silver nanowires (AgNWs) with high yield.A highly conductive dispersant was used to ensure uniform dispersion of
Microsegregation formed during solidification is of great importance to material properties.The conventional Lever rule and Scheil equation are widely used to p
The key to develop high specific energy rechargeable batteries is development of new electrode materials.The existing electrode materials still have many proble
针对印刷板式换热器换热板片表面缺陷的尺度问题,开展试验分析研究,重点研究了板片表面缺陷宽度对换热器芯体扩散焊性能的影响规律,从拉伸强度和微观界面组织两个方面阐述了
By a combination of the nanoindentation and electron probe microanalysis (EPMA) techniques,the traditional diffusion couple technique is extended to map the mec
Developing low-cost,efficient,and stable non-precious-metal electrocatalysts with controlled crystal structure,morphology and compositions are highly desirable
采用有限元辅助进行碳纤维扭转轴定刚度设计,通过碳纤维缠绕成型工艺制备碳纤维扭转轴,并进行扭转刚度测试验证.结果 表明,有限元计算得到碳纤维扭转轴扭转刚度为31.08 kN·m
针对目前模压、缠绕等工艺成型烧蚀防热复合材料易造成层间结合差、脱粘、抗烧蚀性能差、易剥蚀等问题,提出了一种新型压力辅助RTM工艺,并对其进行了树脂充模流动模拟,制备了烧蚀防热复合材料,测试了材料的孔隙率、力学性能、烧蚀性能。结果表明:压力辅助RTM工艺具有可行性与优越性,复合材料孔隙率4.64%,层间剪切强度39.3 MPa,线烧蚀率0.017 mm/s,质量烧蚀率0.0538 g/s。说明压力辅助RTM工艺适合成型烧蚀防热复合材料。
梳理和分析了水下阀门的设计规范、选材原则、设计要求、性能考核要求等,为水下阀门的工程化研制提供技术支持和研究依据。