Sökning: "parabolic flight"
Hittade 3 avhandlingar innehållade orden parabolic flight.
1. Liquid phase sintering of W-Ni-Fe composites : liquid penetration, agglomerate separation and tungsten particle growth
Sammanfattning : The initial stage of liquid phase sintering, involving liquid penetration, agglomerate separation, particle spreading and growth has been investigated in experiments using tungsten heavy alloys. The particle composites used were produced by hot isostatic pressing (HIP) of pure powder mixtures of W-Ni-Fe-(Co). LÄS MER
2. On the solidification of Al alloys during microgravity
Sammanfattning : Thermal analyses have been performed on Al, Al-Cu alloys,Al-Sn alloys, Pb, Sn, Pb-Sn alloys and Al-based amorphousalloys were also investigated. The cooling rates varied fromless than a Kelvin per minute to more than 10,000 Kelvin persecond. Solidification was made under normal gravity and undermicrogravity conditions. LÄS MER
3. Lung function in micro- and in hypergravity
Sammanfattning : The lung is extremely susceptible to gravity, even during short-term changes of the gravity vector, because it is a mixture of air and elastic tissue components. Yet, there is limited knowledge of the effects of gravity on the respiratory system. LÄS MER