Abstract:
A method of making a near-net superhard material body includes preparing granules from a mixture of superhard powder, binders, and fluids, compacting the granules to form a soft green complex-shaped body, heating the soft green body in a furnace to form a hard green body free from residual binders, embedding one or more of the hard green bodies in a containment powder or a containment means and forming a pressure cell, sintering the cell at high pressure and high temperature, and removing the containment powder from the cell or removing the inserts from the containment means to reveal one or more near-net bodies.
Abstract:
An optical component of the present invention is composed of a ZnSe polycrystal body, and the ZnSe polycrystal body is constituted by crystal grains with an average grain size larger than or equal to 50 µm and smaller than or equal to 1 mm and has a relative density higher than or equal to 99%.
Abstract:
The present invention relates to an additive for use in the molding of a ceramic material, which exhibits satisfactory water absorption performance in a ceramic green ceramic clay, can highly achieve both high fluidability and low loading performance during extrusion molding and high shape-retaining performance after extrusion at the same time, and comprises polymer microparticles. This additive for use in the molding of a ceramic material comprises polymer microparticles, is characterized in that the polymer microparticles have an average particle size between 10 and 150 µm when the polymer microparticles are swollen with ion exchange water until the swollen polymer microparticles reach a saturated state and can absorb 10-60 mL/g of ion exchange water under ordinary pressure, and is also characterized in that an aqueous dispersion prepared by dispersing 1 part by mass of the polymer microparticles in 110 parts by mass of ion exchange water has an electrical conductivity of 1500 µS/cm or less at 25°C.
Abstract:
An optical component of the present invention is composed of a ZnSe polycrystal body, and the ZnSe polycrystal body is constituted by crystal grains with an average grain size larger than or equal to 50 µm and smaller than or equal to 1 mm and has a relative density higher than or equal to 99%.
Abstract:
The invention relates to a method of making a synthetic ceramic, comprising heating a green ceramic material to 900-1400 DEG C, to a temperature sufficient to initiate partial melting of at least a portion of the green ceramic material, transferring the heated green ceramic material to a press, pressing the heated green ceramic material in a die at 1,000 to 10,000 psi, and transferring the heated, pressed green ceramic material to a furnace for cooling to form the synthetic ceramic.
Abstract:
The invention concerns a method for making Solid Oxide Fuel Cells (SOFC) and stacks. The method concerns assembling the layers required for the formation of a fuel cell, sintering the fuel cell and thereafter shaping the cell. When making a fuel cell stack, the sintered fuel cells are assembled with the interconnect, spacing and sealing material to form a stack of at least one stack element, followed by shaping the stack. Shaping is carried out in various ways and maximum tolerances of 1% are obtained.
Abstract:
The present invention relates to a polyester film for release film, which has a maximum height of projection (Rmax) in one surface (surface A) of said polyester film, of not more than 500 nm; and has a thickness variation defined by the following equation using the maximum, minimum and mean values of film thickness in the machine and transverse directions of said polyester film, of not more than 5%: Thickness variation (%) = (maximum thickness - minimum thickness) × 100/average thickness