摘要:
To provide an inorganic fiber that suppresses adverse effects on a human body and living environments, exhibits high biosolubility, and also exhibits excellent heat resistance as a constituent material for a filter material, a sealing material, or the like. The inorganic fiber comprises 30 mass% or more and less than 81 mass% ouzos, more than 19 mass% and 65 mass% or less of MgO and 0 mass% to 40 mass% of SiO 2 , wherein the total content of Al 2 O 3 , MgO and SiO 2 relative to the entire fiber is 98 mass% or more.
摘要:
Provided are inorganic fibers which can exhibit high biosolubility and have excellent heat resistance as the constituting material for a filter material, a sealing material or the like, while exerting minimized effects on the human body or the living environment even when the fibers have an average diameter of 1 µm or less. Inorganic fibers including 35 mass% to 88 mass% of Al 2 O 3 , 3 mass% to 45 mass% of CaO and 5 mass% to 40 mass% of SiO 2 , wherein the total content of Al 2 O 3 , CaO and SiO 2 is 98 mass% or more of the entire fibers.
摘要:
An accumulation whose fiber deterioration is low even at long-term compression holding performed while heating at about 1000ºC; and a holding material, such as a catalyst support of catalyst converter or a honeycomb body of DPE, comprising the accumulation. In particular, an inorganic staple fiber accumulation for holding material, comprising an accumulation of inorganic staple fibers whose chemical composition comprises 74 to 86 mass% of alumina component and 26 to 14 mass% of silica component and whose mineral composition comprises 15 to 60 mass% of mullite, wherein the accumulation exhibits an average fiber diameter of 2 to 8 μm, 99% or more (including 100%) of the fiber count composed of fibers of 1.5 to 15 μm diameter, and exhibits a specific surface area of 10 m2/g or less; a process for producing the same; and a holding material comprising a sheet molding comprising the accumulation having an organic binder incorporated therein characterized in that the inorganic staple fibers are employed.
摘要:
A fibrous ceramic material including a plurality of fibers entangled with one another. The fibrous ceramic material includes at least one connector projecting between the fibers. At least a portion of the fibers have the connectors extending between and attach the fibers to one another. A method of manufacturing the fibrous ceramic material includes providing a precursor material having a plurality of fibers. A holder is provided for holding the precursor material. The precursor material is placed on the holder and both are heated to between about 1500 degrees Celsius and about 1700 degrees Celsius to form the fibrous ceramic material, thereby causing connectors to project from a portion of the fibers and attach the fibers to one another.
摘要:
The present invention generally relates to metal oxide fibers and nanofibers, the processes for making same, and uses thereof. Such metal oxide nanofibers possess the ability to absorb and decompose chemical warfare agents and other toxic chemicals. These nanofibers can be incorporated into protective clothing and devices for breathing or in another example may be used in lithium-ion batteries. In one embodiment, the present invention relates to titania, alumina, and/or magnesia fibers and nanofibers, and to processes for making same. In another instance, alpha-phase aluminum oxide is utilized as one material in nanofibers.
摘要:
An object of the invention is to provide an alumina fiber aggregate which, when used as a filler in various materials such as, e. g. , resins, coating materials, metals, and ceramics, enables the mixtures to have reduced viscosity and thereby heightens the productivity of products containing alumina fibers, and which enables cured thermosetting resins to have a sufficiently heightened thermal conductivity. This alumina fiber aggregate, when examined by the electron microscope method, gives a frequency distribution regarding number of fibers, wherein the number of fibers having a fiber length of 50-200 µm is 70% or more (including 100%), the number of fibers having a fiber length smaller than 50 µm is 30% or less (including 0), the number of fibers of 50-100 µm is 30-50%, the number of fibers longer than 100 µm but not longer than 200 µm is 30-50%, and the number of fibers longer than 200 µm is 20% or less (including 0). The fibrous mass comprises 70-100% by mass of Al 2 O 3 and 0-30% by mass of SiO 2 .
摘要:
The invention relates to composites, comprising at least one hollow fibre, made from an oxygen-transporting ceramic material which is a combination of oxygen anion and electron-conducting ceramic material, or a combination of oxygen anion conducting ceramic material and electron-conducting ceramic or non-ceramic material, whereby the outer surface of the hollow fibre is in contact with the outer surface of the same or a different hollow fibre and the contact points are connected by means of sintering. Further composites contain at least one hollow fibre, made from oxygen transporting ceramic material, which is an oxygen anion and electron-conducting ceramic material, or a combination of oxygen anion conducting ceramic material and electron-conducting ceramic or non-ceramic material, with a connector element for the introduction or removal of fluids on at least one front face, whereby the hollow fibres and the connector element are connected. The composites are of application in obtaining oxygen from oxygen-containing gas mixtures or for carrying out oxidation reactions.