Abstract: The mold assembly for magnesium alloys comprises a mold and/or a core, each formed of an air permeable material. The air permeable material is any one or any combination of a network, a sheet having multiple holes, and cloth. The network, the sheet or the cloth is any one or any combination of a metal, a chemical fiber, and a ceramic material. The invention also provides a casting method for magnesium alloys, which uses that mold assembly.

Abstract: Disclosed is a hydrogen storage alloy material which is prepared by subjecting an amorphous alloy to a heat treatment in air or an oxygen atmosphere. The amorphous alloy has a composition, in atomic %, expressed by the following formula: Zr100-a-bPdaMb (wherein 15?a?40, 0<b?10, and M is at least one metal selected from the group consisting of Pt, Au, Fe, Co and Ni). The Pd, the metal M and one or more compounds thereof are dispersed in a parent phase of ZrO2 in the form of ultrafine particles. This alloy material exhibits a hydrogen storage amount of 2.5 weight % or more in a weight ratio relative to Pd contained in the material, and suited to a hydrogen storage/transportation medium. The alloy material can be produced by preparing a melt of a master alloy formed through a melting process, rapidly solidifying the melt at a cooling rate of 104 K/s or more to form the above amorphous alloy, and subjecting the amorphous alloy to an oxidizing heat treatment in air or an oxygen atmosphere at 250 to 350° C.

Abstract: The present invention provides a method of generating heat using a hydrogen condensate. The hydrogen condensate comprises a plurality of metal atoms contained in a metal nano-ultrafine particle and a plurality of hydrogen isotope atoms solid-dissolved among the plurality of metal atoms. At least two of the plurality of hydrogen isotope atoms are condensed so that the inter-atomic nuclear distance between two hydrogen Isotope atoms is smaller than or equal, to the internuclear spacing of a molecule consisting of two hydrogen isotope atoms. The heat generation method comprises applying energy to the hydrogen condensate and generating heat by causing the at least two hydrogen isotope atoms to react with each other due to the energy.

Abstract: A method of producing ultrahigh pressure gas statically and stably without using a dynamic driving unit such as a pump. A container formed with a closed space is made of a palladium, which is a metal having a high permeability to hydrogen and deuterium. A solution present around the container is electrolyzed by producing an electric field between the container which serves as a cathode and an anode. The gas element produced by electrolysis penetrates into the container body, so that the hydrogen/deuterium ion concentration in the container increases. This solid-air equilibrium reaction is carried out until the ion concentration increases to a level at which the pressure in the closed space reaches a predetermined ultrahigh level. Thus, an ultrahigh pressure gas is produced in the closed space of the container.

Abstract: A plurality of laser beams emitted from lasers are reflected by mirrors to form a bundle of parallel beams or converged by mirrors into a limited narrow space. Lasers and directing mirrors may be arranged on two or more planes to increase the number of beams per bundle. An ultra-high power, ultra-high density pseudo-single laser beam can be generated by use of one or two groups of reflecting mirrors and a focusing mirror for focusing the beams from the reflecting mirrors into one focal point.

Abstract: A plurality of laser beams emitted from lasers are reflected by mirrors to form a bundle of parallel beams or converged by mirrors into a limited narrow space. Lasers and directing mirrors may be arranged on two or more planes to increase the number of beams per bundle. An ultra-high power, ultra-high density pseudo-single laser beam can be generated by use of one or two groups of reflecting mirrors and a focusing mirror for focusing the beams from the reflecting mirrors into one focal point.

Abstract: A plasma jet generating apparatus including a torch center electrode, a torch nozzle, a first DC source, and a vortex flow/discharge unit. The unit includes a second DC power source, a gas diverter nozzle, and a vortex flow chamber. The second DC power source is used to create a high temperature and high power plasma jet. The vortex flow chamber, together with the gas diverter nozzle, is used to apply a thermal pinch effect to the plasma jet to be output from the gas diverter nozzle.