No abstract

A large set of calculations has been carried out providing a basis for diagnostics of fusion plasmas through emission resulting from radiative de-excitation following charge transfer between hydrogen and highly charged argon ions, so-called argon charge exchange recombination spectroscopy. These results have been obtained using the classical trajectory Monte Carlo (CTMC) method to treat charge transfer to states with principal quantum numbers up to 30 or more. Nine collision energies between 13.3333 and 250 keV/u pertinent to neutral beam injection have been considered for Ar q+ (q = 15-18) colliding with atomic hydrogen in both the ground and metastable states. Atomic orbital close coupling calculations have also been undertaken in order to provide a fully quantum mechanical test of the CTMC results for Ar 18+ + H(1s) collisions. The results of the calculations are discussed here and the full set of data is made available through a web posting.

For improving the electrical efficiency of a hybrid car, relationship between microstructure and thermal properties of carbon nanotube, carbon fiber reinforced aluminum composites were examined as heat sink plate. In this study, influence of interfacial thermal resistance between fiber and binder, fiber diameter and binder volume fraction on thermal conductivity of the composites were examined. Firstly, in order to examine the effectivity for binding the fibers by the binder, the interfacial thermal resistance between fiber and binder was compared with that between fiber and matrix. In order to examine the influence of fiber diameter, the thermal conductivity of multi walled carbon nanotube preforms was compared with that of carbon fiber preforms. As the result, interfacial thermal resistance between fiber and binder was lower than that between fiber and matrix. Secondly, it was revealed that the larger fiber diameter leads to the higher thermal conductivity of the composite. Finally, the binder volume fraction was influenced by the microstructure so that the simply increasing and decreasing tendency was not found for thermal conductivity of the composites. By means of simulation for thermal conductivity, it was suggested that highly constricted fiberϩbinder part would deteriorate the thermal conductivity of the composites.