MAMP PRO 4.2 (Full Crack) EXCLUSIVE
Download ->>->>->> https://bltlly.com/2tadj9
Optimization of secondary-crystal orientation in turbine blade material is a very important technique to increase fatigue life. Single-crystal superalloys with secondary-crystal orientations have been developed to increase the resistance to fatigue crack growth. Secondary-crystal alloys have high thermal conductivity, high strength, and high creep resistance. They are also more ductile than polycrystalline alloys. They have been proposed for turbine blades for several decades.
In this article the effect of the secondary-crystal orientation on the fatigue life of single-crystal turbine blade has been studied. Two different secondary-crystal orientations have been considered, (111) and (100) planes. It has been shown that the fatigue life of the turbine blade increases with the increase of the secondary-crystal orientation. The higher fatigue life of the turbine blade made of single-crystal nickel superalloys can be attributed to two reasons: 1) Increased creep resistance at higher temperature, 2) Increased ductility at higher temperature. The fatigue life also depends on the crystal orientation of the secondary-crystal. It has been found that the fatigue life of the turbine blade made of single-crystal nickel superalloys with (111) plane orientation is higher than that with (100) plane orientation. This study indicates that the fatigue life of the turbine blade made of single-crystal nickel superalloys can be improved by increasing the secondary-crystal orientation.
Nanostructured materials are promising materials for applications in solar energy conversion and storage systems. Research on the synthesis, characterization and manipulation of nanostructured materials has gained significant attention during the last decade. In this study, we present a near-infrared (NIR) two-photon excited fluorescence microscopic (TPEM) technique for the characterization of size-controlled Au nanoparticles in solution and on solid support. The TPEM microscope was used to image Au nanoparticles as small as 2 nm and to investigate the metal surface morphology of Au nanoparticles on glass. The small size and the large lateral resolution of the TPEM microscope were utilized to determine the size of the Au nanoparticles in solution. The surface morphology and the particle size on the support were determined by X-ray diffraction (XRD) and scanning electron microscopy (SEM) measurements. The metal surface morphology of the Au nanoparticles on glass was influenced by the metal species and the bath pH.
Solid oxide fuel cells (SOFCs) are widely recognized as an effective technology for producing electricity with minimal emissions. Unfortunately, SOFCs have some performance deficiencies that need to be overcome before they are ready for commercialization. One of the problems is cracking in single-crystal-based SOFCs operating at high temperature. Various factors, such as the type of ceramic material, choice of electrolyte, and geometry have been discussed for the reasons of SOFC crack growth. In this study, the fundamental of crack growth in single-crystal-based SOFCs is investigated by comparing various aspects of anodic and cathodic microstructures with in-situ cracked SOFCs. The critical factors in the development of such cracks are identified and the potential causes are discussed. A finite element model of a single-crystal-based SOFC is developed and simulated. The critical factors have been identified and discussed in detail, which can help in solving the SOFC cracking problem and developing a practical SOFC. 827ec27edc