Patent application number | Description | Published |
20090151766 | METHOD OF PRODUCING THERMOELECTRIC CONVERSION ELEMENT - A method of producing a thermoelectric conversion element includes preparing a dispersion liquid by mixing slurry containing ceramic particles With salts of at least two elements that constitute a thermoelectric conversion material, and then, precipitating the at least two elements that constitute the thermoelectric conversion material on the ceramic particles in the dispersion liquid; performing washing; performing heating treatment; and performing sintering. Contact between a solution with a pH lower than 1 among solutions of the salts and the slurry containing the ceramic particles is avoided, or the solution with the pH lower than 1 contacts the slurry containing the ceramic particles for a first time when the at least two elements that constitute the thermoelectric conversion material are precipitated. | 06-18-2009 |
20120217447 | NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL AND METHOD OF PRODUCING THE SAME - A nanocomposite thermoelectric conversion material ( | 08-30-2012 |
20120280418 | THERMOELECTRIC CONVERSION MATERIAL AND METHOD OF PRODUCING THE SAME - A thermoelectric conversion material wherein at least a part of the insulating material contained in the thermoelectric conversion material has a particle size not larger than a mean free path of the phonons in the insulating material or wherein a dispersion gap of the insulating material is not larger than a mean free path of the phonons in the thermoelectric conversion material, and a method of producing the thermoelectric conversion material comprising the steps of forming composite nano particles by reducing and precipitating starting particles of a thermoelectric conversion material on the nano particles constituted by an insulating material, followed by a heat treatment to coat the nano particles with the thermoelectric conversion material; and packing and sintering the composite nano particles. | 11-08-2012 |
20120292575 | NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL AND PROCESS FOR PRODUCING SAME - The invention provides a nanocomposite thermoelectric conversion material ( | 11-22-2012 |
20130221290 | NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL, METHOD OF PRODUCING SAME, AND THERMOELECTRIC CONVERSION ELEMENT - A nanocomposite thermoelectric conversion material is provided in which crystal grains of a thermoelectric material parent phase are stacked in a laminar configuration and are oriented, the width of the crystal grains perpendicular to the direction of this orientation is in a range from at least 5 nm to less than 20 nm, and insulating nanoparticles are present dispersed at the grain boundaries. Also provided is a method of producing a nanocomposite thermoelectric conversion material, by which the crystal grains of a thermoelectric material parent phase are oriented by cooling a material under compression at a cooling rate of at least 1° C./minute to less than 20° C./minute. A thermoelectric conversion element that contains the aforementioned nanocomposite thermoelectric conversion material is also provided. | 08-29-2013 |
20130240775 | METHOD OF PRODUCTION OF NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL - A method of producing a nanocomposite thermoelectric conversion material which has a high thermoelectric conversion performance without modifying the surface of the phonon scattering particles and thereby preventing the conventional defects due to an organic phase derived from a modifier. The method produces a nanocomposite thermoelectric conversion material comprised of a Bi | 09-19-2013 |
20130330225 | PRODUCTION METHOD FOR NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL - A nanocomposite thermoelectric conversion material capable of improving enhancement of ZT by reducing the thermal conductivity is provided by a production method for a nanocomposite thermoelectric conversion material composed of a matrix and a nanoparticle, the method comprising selecting the combination of at least three kinds of elements such that out of, one kind of an element becomes an oxide in the form of a nanoparticle; dissolving the elements such that the amount of the element constituting the nanoparticle becomes excessive with respect to the composition of the matrix in the final target product; adding a reducing agent to the solution, thereby allowing a reduction reaction to proceed at a plurality of different pH values from the initiation to the termination of reaction; and performing a hydrothermal treatment to cause formation of the matrix by alloying and formation of a nanoparticle composed of the oxide. | 12-12-2013 |
20140174493 | NANOCOMPOSITE THERMOELECTRIC CONVERSION MATERIAL AND METHOD OF MANUFACTURE THEREOF - A nanocomposite thermoelectric conversion material includes a matrix and semiconductor nanowires dispersed as a dispersant in the matrix. The semiconductor nanowires are arranged unidirectionally in a long axis direction of the semiconductor nanowires. | 06-26-2014 |