Abstract: The present invention addresses the issue of providing an optical selective film that contributes to efficiently converting light into heat. This optical selective film is characterized in that: the optical selective film includes at least an Ag-containing layer, and an Ag diffusion prevention layer that is disposed adjacent to the Ag-containing layer; and the Ag diffusion prevention layer contains FeSix (X=1 to 2).

Abstract: A solar-thermal conversion member includes a ?-FeSi2 phase material. The solar-thermal conversion member exhibits a high absorptance for visible light at wavelengths of several hundred nm and a low absorptance for infrared light at wavelengths of several thousand nm and, as a consequence, efficiently absorbs visible light at wavelengths of several hundred nm and converts the same into heat and exhibits little thermal radiation due to thermal emission at temperatures of several hundred ° C. The solar-thermal conversion member may therefore efficiently absorb sunlight, provide heat, and prevent thermal radiation due to thermal emission.

Abstract: The present invention addresses the issue of providing an optical selective film that contributes to efficiently converting light into heat. This optical selective film is characterized in that: the optical selective film includes at least an Ag-containing layer, and an Ag diffusion prevention layer that is disposed adjacent to the Ag-containing layer; and the Ag diffusion prevention layer contains FeSix (X=1 to 2).

Abstract: The present invention addresses the problem of providing a heat conversion member capable of efficiently converting light to heat. This heat conversion member is characterized in that it includes a composite material of at least one type of semiconductor and at least one type of metal material.

Abstract: The solar-thermal conversion member includes a ?-FeSiz phase material. The solar-thermal conversion member exhibits a high absorptance for visible light at wavelengths of several hundred nm and a low absorptance for infrared light at wavelengths of several thousand nm and as a consequence efficiently absorbs visible light at wavelengths of several hundred nm and converts the same into heat and exhibits little thermal radiation due to thermal emission at temperatures of several hundred ° C. The solar-thermal conversion member can therefore efficiently absorb sunlight and provide heat and can prevent thermal radiation due to thermal emission.

Abstract: A stack structure for a solid oxide fuel cell includes a plurality of stacked single cells, each having a fuel electrode layer including a fuel electrode and an air electrode layer including an air electrode, the fuel electrode layer and the air electrode layer being arranged opposite each other on either side of a solid electrolyte, separators arranged between the stacked single cells to separate the single cells, and non-porous seal parts located within the fuel electrode layer and the air electrode layer, are equivalent to either the separators or the solid electrolyte at least in terms of thermal expansion and contraction characteristics, and are integrated with an edge of the fuel electrode or an edge of the air electrode, and also with the adjacent separator and the adjacent solid electrolyte.

Abstract: A mold surface (6) of an upper mold (1) with which a fluid resin comes into contact has an oxide (3) therein. The oxide (3) contains a metal cation and an ion. Field strength is calculated based on a valence of the metal cation and an ionic radius of the ion. Based on predetermined relationship established between a value of the field strength and adhesion strength between a cured resin and the mold surface (6), releasability between the cured resin and the mold surface (6) is evaluated. Thereby, a method of evaluating releasability between the cured resin and the mold surface (6) is established. With this evaluation method, a material with high releasability (3) can readily be provided. Further, if the material with high releasability (3) is used for the mold surface (6) of the upper mold (1), a mold for molding a resin having excellent releasability can be obtained.

Abstract: A stack structure for a solid oxide fuel cell includes a plurality of stacked single cells, each having a fuel electrode layer including a fuel electrode and an air electrode layer including an air electrode, the fuel electrode layer and the air electrode layer being arranged opposite each other on either side of a solid electrolyte, separators arranged between the stacked single cells to separate the single cells, and non-porous seal parts located within the fuel electrode layer and the air electrode layer, are equivalent to either the separators or the solid electrolyte at least in terms of thermal expansion and contraction characteristics, and are integrated with an edge of the fuel electrode or an edge of the air electrode, and also with the adjacent separator and the adjacent solid electrolyte.

Abstract: A mold surface (6) of an upper mold (1) with which a fluid resin comes into contact has an oxide (3) therein. The oxide (3) contains a metal cation and an ion. Field strength is calculated based on a valence of the metal cation and an ionic radius of the ion. Based on predetermined relationship established between a value of the field strength and adhesion strength between a cured resin and the mold surface (6), releasability between the cured resin and the mold surface (6) is evaluated. Thereby, a method of evaluating releasability between the cured resin and the mold surface (6) is established. With this evaluation method, a material with high releasability (3) can readily be provided. Further, if the material with high releasability (3) is used for the mold surface (6) of the upper mold (1), a mold for molding a resin having excellent releasability can be obtained.

Abstract: A low-adhesion material containing a rare-earth element is formed as a layer or a film on a mold surface of a mold for molding a resin. A main component of the low-adhesion material is a rare-earth compound, and Y2O3 is used as an example. A content of the rare-earth compound in the low-adhesion material is not less than 40 percent by volume. Thereby, a mold for molding a resin having excellent releasability can be obtained.

Abstract: A mold surface (6) of an upper mold (1) with which a fluid resin comes into contact has an oxide (3) therein. The oxide (3) contains a metal cation and an ion. Field strength is calculated based on a valence of the metal cation and an ionic radius of the ion. Based on predetermined relationship established between a value of the field strength and adhesion strength between a cured resin and the mold surface (6), releasability between the cured resin and the mold surface (6) is evaluated. Thereby, a method of evaluating releasability between the cured resin and the mold surface (6) is established. With this evaluation method, a material with high releasability (3) can readily be provided. Further, if the material with high releasability (3) is used for the mold surface (6) of the upper mold (1), a mold for molding a resin having excellent releasability can be obtained.

Abstract: A mold surface of an upper mold with which a fluid resin comes into contact has an oxide therein. The oxide contains a metal cation and an ion. Field strength is calculated based on a valence of the metal cation and ionic radius of the ion. Based on predetermined relationship established between a value of the field strength and adhesion strength between a cured resin and the mold surface, releasability between the cured resin and the mold surface is evaluated. Thereby, a method of evaluating releasability between the cured resin and the mold surface is established. With this evaluation method, a material with high releasability can readily be provided. Further, if the material with high releasability is used for the mold surface of the upper mold, a mold for molding a resin having excellent releasability can be obtained.

Abstract: A resin molding die has a molding surface formed of a low adhesion material formed of a solid solution of La—Y2O3 produced from Y2O3 and an other oxide of La2O3. La2O3 contains La, which has an ionic radius larger than Y3+, and is larger in basicity than Y2O3. The low adhesion material contains La2O3 at a predetermined ratio relative to a total of Y2O3 and La2O3. The low adhesion material thus has a large iconic radius contributing to a smaller number of sites per unit area than Y2O3, a larger basicity contributing to a smaller force binding the low adhesion material with a basic substance than Y2O3, and a ratio contributing to shape retention. The low adhesion material thus less adhesive and more shape-retentive than Y2O3 configures the molding surface. A low adhesion material that is less adhesive to a basic substance than Y2O3 is and excellently shape-retentive, and an excellently releasable and shape-retentive resin molding die can thus be obtained.

Abstract: A mold surface of an upper mold with which a fluid resin comes into contact has an oxide therein. The oxide contains a metal cation and an ion. Field strength is calculated based on a valence of the metal cation and ionic radius of the ion. Based on predetermined relationship established between a value of the field strength and adhesion strength between a cured resin and the mold surface, releasability between the cured resin and the mold surface is evaluated. Thereby, a method of evaluating releasability between the cured resin and the mold surface is established. With this evaluation method, a material with high releasability can readily be provided. Further, if the material with high releasability is used for the mold surface of the upper mold, a mold for molding a resin having excellent releasability can be obtained.

Abstract: A low-adhesion material containing a rare-earth element is formed as a layer or a film on a mold surface of a mold for molding a resin. A main component of the low-adhesion material is a rare-earth compound, and Y2O3 is used as an example. A content of the rare-earth compound in the low-adhesion material is not less than 40 percent by volume. Thereby, a mold for molding a resin having excellent releasability can be obtained.