Abstract: An object of the present disclosure is to provide a method for manufacturing an aluminum alloy plastically-processed article, capable of preventing a burning crack from occurring due to processing heat generated during plasticity processing while maintaining a solution-treatment temperature of an aluminum alloy material for ensuring a mechanical strength thereof. A method for manufacturing an aluminum alloy plastically-processed article, includes a step of performing a solution treatment for an aluminum alloy material by heating and maintaining the aluminum alloy material at a solution-treatment temperature, a step of performing plasticity processing for the aluminum alloy material subjected to the solution treatment, and steps of cooling the plastically-processed aluminum alloy material at a time at which the step of the plasticity processing is completed, and aging the cooled aluminum alloy material.

Abstract: An object of the present disclosure is to provide a method for manufacturing an aluminum alloy plastically-processed article, capable of preventing a burning crack from occurring due to processing heat generated during plasticity processing while maintaining a solution-treatment temperature of an aluminum alloy material for ensuring a mechanical strength thereof. A method for manufacturing an aluminum alloy plastically-processed article, includes a step of performing a solution treatment for an aluminum alloy material by heating and maintaining the aluminum alloy material at a solution-treatment temperature, a step of performing plasticity processing for the aluminum alloy material subjected to the solution treatment, and steps of cooling the plastically-processed aluminum alloy material at a time at which the step of the plasticity processing is completed, and aging the cooled aluminum alloy material.

Abstract: An object of the present disclosure is to provide a method for manufacturing an aluminum alloy plastically-processed article, capable of preventing a burning crack from occurring due to processing heat generated during plasticity processing while maintaining a solution-treatment temperature of an aluminum alloy material for ensuring a mechanical strength thereof. A method for manufacturing an aluminum alloy plastically-processed article, includes a step of performing a solution treatment for an aluminum alloy material by heating and maintaining the aluminum alloy material at a solution-treatment temperature, a step of performing plasticity processing for the aluminum alloy material subjected to the solution treatment, and steps of cooling the plastically-processed aluminum alloy material at a time at which the step of the plasticity processing is completed, and aging the cooled aluminum alloy material.

Abstract: A thermoelectric material includes a semiconductor substrate, a semiconductor oxide film formed on the substrate, and a thermoelectric layer provided on the oxide film. The semiconductor oxide film has a first nano-opening formed therein. The thermoelectric layer has such a configuration that semiconductor nanodots are piled up on or above the first nano-opening so as to form a particle packed structure. At least some of the nanodots each have a second nano-opening formed in its surface, and are connected to each other through the second nano-opening with their crystal orientation aligned. The thermoelectric material is produced through steps of oxidizing the substrate to form the semiconductor oxide film thereon, forming the first nano-opening in the oxide film, and epitaxially growing to pile up the plurality of nanodots on the first nano-opening. As a result, it is possible to provide the thermoelectric material superior in thermoelectric conversion performance.

Abstract: A thermoelectric material includes a semiconductor substrate, a semiconductor oxide film formed on the substrate, and a thermoelectric layer provided on the oxide film. The semiconductor oxide film has a first nano-opening formed therein. The thermoelectric layer has such a configuration that semiconductor nanodots are piled up on or above the first nano-opening so as to form a particle packed structure. At least some of the nanodots each have a second nano-opening formed in its surface, and are connected to each other through the second nano-opening with their crystal orientation aligned. The thermoelectric material is produced through steps of oxidizing the substrate to form the semiconductor oxide film thereon, forming the first nano-opening in the oxide film, and epitaxially growing to pile up the plurality of nanodots on the first nano-opening. As a result, it is possible to provide the thermoelectric material superior in thermoelectric conversion performance.