摘要:
A composite structure includes a matrix material and a carbon nanotube (CNT)-infused fiber material that includes a plurality of carbon nanotubes (CNTs) infused to a fiber material. The CNT-infused fiber material is disposed throughout a portion of the matrix material. The composite structure is adapted for application of a current through the CNT-infused fiber material to provide heating of the composite structure. A heating element includes a CNT-infused fiber material includes a plurality of CNTs infused to a fiber material. The CNT-infused fiber material is of sufficient proportions to provide heating to a structure in need thereof.
摘要:
Methods for producing a transition-metal-coated carbon material having a transition metal coating which has a high adhesion strength between the transition metal and the carbon material, and which is neither exfoliated nor detached in subsequent processing are provided. The transition-metal-coated carbon material may be obtained by adhering a compound containing transition metal ions onto a surface of a carbon material and by reducing the transition metal ions with carbon in the carbon material by a heat treatment, thereby to form elemental transition metal. Here, the transition metal is Fe, Co, Ni, Mn, Cu or Zn. Moreover, also provided is a carbon-metal composite material exhibiting an excellent mechanical strength and thermal conductivity, by improving affinity with a metal such as aluminium by use of the transition-metal-coated carbon material.
摘要:
A nanofiber, which is prepared by using a fabrication method comprising the steps of spinning a spinning solution prepared by dissolving at least one precursor for metal, metal oxide, or metal complex oxide with a polymer mixture comprising at least two polymers having different molecular weights and glass transition temperatures in a solvent and thermally treating the spun fiber, comprises close-packed nanoparticles of a metal, a metal oxide, a metal complex oxide or a mixture thereof and has excellent structural, thermal, and mechanical stability as well as a uniform fiber-shape.
摘要:
A composite structure includes a matrix material and a carbon nanotube (CNT)-infused fiber material that includes a plurality of carbon nanotubes (CNTs) infused to a fiber material. The CNT-infused fiber material is disposed throughout a portion of the matrix material. The composite structure is adapted for application of a current through the CNT-infused fiber material to provide heating of the composite structure. A heating element includes a CNT-infused fiber material includes a plurality of CNTs infused to a fiber material. The CNT-infused fiber material is of sufficient proportions to provide heating to a structure in need thereof.
摘要:
The present invention contemplates a variety of methods and techniques for fabricating an improved carbon nanotube (CNT) device such as an AFM probe. A CNT is first formed on a desired location such as a substrate. The CNT and substrate are then covered with a protective layer through a CVD or other suitable process. Then a length of the CNT is exposed through etching or other suitable process, the exposed length being formed to a length suitable for a desired application for the CNT device.
摘要:
Nanostructures and methods of fabrication thereof are disclosed. One representative nanostructure includes a silicon dioxide (SiO2)/tin oxide (SnOx) nanostructure, where x is between about 1 to about 2. The SiO2/SnOx nanostructure includes a SiO2 nanostructure having SnOx nanoclusters dispersed over a portion of the surface of the SiO2 nanostructure.
摘要翻译:公开了纳米结构及其制造方法。 一个代表性的纳米结构包括二氧化硅(SiO 2)/氧化锡(SnO x X)纳米结构,其中x在约1至约2之间.SiO 2 纳米结构的纳米结构包括分散在SiO 2纳米结构。
摘要:
A multilayer ceramic capacitor comprising a capacitor element body: wherein dielectric layers composed of a dielectric ceramic composition and internal electrode layers are alternately stacked; the dielectric ceramic composition comprises a plurality of dielectric particles each having a shell, wherein subcomponents are dispersed in a main component, formed around a core substantially composed of the main component; and a difference of the maximum thickness and the minimum thickness of the shell in the dielectric particles having an average particle diameter is controlled to be 6 to 60% of a radius of the dielectric particles; wherein a high permittivity and preferable temperature characteristic are obtained and TC bias characteristics are improved, is provided.
摘要:
A composite composition and a method of making such a composite that is composed of a matrix material and dispersed reinforcement nanotubes that are substantially aligned along at least one specified direction or axis. Also a method for making a continuous fiber-reinforced composite object by combining a reinforcement fiber tow with a solidifying matrix material to form a pre-impregnated tow or towpreg, providing a dispensing head capable of dispensing the towpreg onto a base member positioned a distance from this head with the head and base member being driven by motion devices electronically connected to a motion controller regulated by a computer, and operating and moving the head relative to the base member to dispense multiple layers of towpreg in accordance with a CAD-generated deposition path along which the dispensing head can be allowed to trace out individual layers by following a selected algorithm so that the number of path interruptions at which the towpreg must be tentatively cut off from the dispensing head is minimized.
摘要:
This invention concerns a composite material which is characterized by comprising a large number of composite material cells, as structural units of the composite material, each comprising a first phase composed of a base material and a second phase composed of a dispersion material surrounding the first phase discontinuously; and comprising a matrix comprising the base material and the dispersion material dispersed in the matrix, the dispersion material being dispersed discontinuously in the form of a three-dimensional network in the composite material; wherein the dispersion materials of the composite material cells are combined to form a composite material skeletal part, thereby exhibiting properties of the dispersion material without reducing the strength of the matrix owing to the skeletal part, and improving strength characteristics thereof owing to the skeletal part serving as a resistance to external stress. A preferred embodiment of the invention provides a composite material characterized in that it comprises a base material, a reinforcing layer comprising a material which resembles the base material and is dispersed continuously in the form of a three-dimensional network in the base material, and dispersion material which is dispersed discontinuously within the material of the reinforcing layer, so that the dispersion material is dispersed discontinuously in the form of a three-dimensional network in the base material, and provides a method for the manufacture of this composite material.
摘要:
A surface-treated ceramic powder includes a plurality of ceramic particles and a surface-treating material. Each of the ceramic particles is at least partially coated by the surface-treating material, wherein the ceramic particles have an average particle diameter ranging from 10 micrometer (μm) to 100 μm, and the surface-treating material is made of metal, metal oxide or the combination thereof.