Abstract:
The present invention relates to a switching device fabricated by using nanoparticles and a preparation method thereof. The present invention ensures the mass production of switching devices (e.g., memristor) by use of nanoparticles that exhibits reversible switching behavior at current of less than mA and at room temperature (25°C) ? 250°C in a more convenient and economical manner. Predictions of the high potential of memristors based on nanoparticle assemblies are supported by the tremendous versatility to tune the electrical behavior of nanoparticles by controlling their nanoscale characteristics such as size, composition, dimension, surface area, and chemical potential.
Abstract:
La presente invención se refiere a un procedimiento para la dispersión de nanopartículas sintéticas o naturales y de materiales nanocompuestos, y sus aplicaciones en diferentes sectores, entre los que destacan los sectores de cerámica, de recubrimientos, de polímeros, de la construcción, de pinturas, de catálisis, farmacéutico o de materiales pulverulentos en general.
Abstract:
A method is disclosed for manufacturing a zircon composition, the method comprising contacting a zircon powder with a sintering aid, wherein the sintering aid is in the form of a liquid, a sol, or a combination thereof. Also disclosed are methods for forming the zircon composition into a desired shape and for firing a composition to produce a ceramic body. The zircon composition and ceramic body produced by the described methods are also disclosed.
Abstract:
본 발명은 산화물층이 코팅된 티탄산바륨 분말 및 그의 제조 방법에 관한 것으로, EIAJ 규격으로 규정하는 X7R 특성 및 JIS 규격으로 규정하는 B 특성을 모두 만족시키고, 정전 용량의 온도 안정성이 양호하고, 절연 저항치, 비유전율 등의 특성이 양호하고, 절연 저항의 가속 수명이 긴 전자부품용 원료를 제조하기 위하여, 주성분인 티탄산바륨 입자의 표면에 부성분 산화물층으로 구성되어지는 티탄산바륨 분말을 제조하되, 부성분 산화물층의 두께를 0.01 ~ 30nm의 범위 내에 제어하는 발명에 관한 것이다.
Abstract:
Nano- and micron sized metal oxide and mixed metal oxide particles are injected into a high temperature region wherein the temperature is between about 400 ° C and less than 2000 ° C, and collected as particles or as coatings wherein a particulate nature is substantially maintained. The particles are altered in at least one of phase, morphology, composition, and particle size distribution, and may achieve further changes in these characteristics by coinjection of metal oxide precursor in liquid form.
Abstract:
The present invention relates to a method of producing coloured carrier particles (substrates), which comprises a) dispersing the carrier particles in a solution of a colorant or latent pigment, adding the carrier particles to a solution of a colorant or latent pigment, or adding a latent pigment or a colorant to a dispersion of the carrier particles, b) precipitating the colorant or latent pigment onto the carrier particles, and c) in the case of a latent pigment, subsequently converting it to the pigment, and to the coloured substrates obtainable by such a method, and also to the use thereof. Using the methods according to the invention it is possible to obtain colorations and coloured substrates that have surprisingly good light-fastness properties.
Abstract:
An improved dielectric composition comprising a plurality of mixed metal oxide dopants (12) or secondary components distributed homogeneously on the surface of ceramic powder particles (10) or the primary ceramic component, and a method for enhancing dielectric properties of such compositions by improving the chemical homogeneity of the particles.
Abstract:
The invention relates to a thermoelectric generator, in particular a thermoelectric generator for utilizing the waste heat of exhaust gases having a temperature of less than 250 °C, such as those resulting from the operation of power plants. In this case, partially conductive or semiconductive particles are used which are arranged in layers between hot and cold air channels and produce a usable current flow.