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Article
Development of a real-time stereo TEM
We have developed a real-time stereo transmission electron microscope (TEM) with tilting illumination. This system allows us to observe three-dimensional (3-D) images directly with a video-rate of 1/30 s. The ...
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Article
Formation process of Na-X zeolites from coal fly ash
In order to synthesize Na-X zeolite from coal fly ash (Fa), Fa was pretreated under stirring condition at various temperatures of 20–50°C for 72 h and then aged at 85°C for a given period with NaOH solutions. ...
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Article
Preparation of composite TiO2-zeolite sheets using a papermaking technique and their application to environmental improvement Part II Effect of zeolite coexisting in the composite sheet on NO x removal
Sheets with a photocatalytic action were prepared using a papermaking technique. These sheets included single TiO2-sheet (Ti) and composite TiO2 sheets with A type zeolite (Ti-ZeA) and Y type zeolite (Ti-ZeY). A ...
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Article
Conversion of coal fly ash to Na-X zeolites
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Article
High temperature strength at 1773 K and room temperature fracture toughness of Nbss/Nb5Si3 in situ composites alloyed with Mo
High temperature compressive strength at 1773 K and room temperature fracture toughness have been studied in terms of microstructure, phase stability and solid solution hardening in Nb-Si-Mo in situ composites co...
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Article
Preparation of composite TiO2-zeolite sheets using a papermaking technique and their application to environmental improvement Part I Removal of acetaldehyde with and without UV irradiation
Composite titanium dioxide (TiO2)-zeolite sheets were prepared using a papermaking technique and were tested with regard to their ability to remove acetaldehyde, which is often used as a typical volatile organic ...
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Article
Sintering of 6H(α)-SiC and 3C(β)-SiC powders with B4C and C additives
The sintering behavior of three fine industrial SiC powders (two 6H(α)-type and one 3C(β)-type) has been comparatively investigated. The powders were pressureless sintered with B4C and C additives between 1950°C ...
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Article
Preparation of zeolite sheet using a papermaking technique Part II The strength of zeolite sheet and its hygroscopic characteristics
Zeolite has been widely applied to practical processes in various industrial fields as a desiccant, an adsorbent, a molecular sieve, an ion exchanger, a catalyst and so on. It has generally been used in the fo...
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Article
Preparation of zeolite sheets using a papermaking technique Part I Dual polymer system for high retention of stock components
Zeolite is generally used in the form of beads or pellets in various industrial fields. These types of use, however, have some serious disadvantages such as a pressure loss in the reaction tower or a powdering...
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Article
Movement of liquid phase and the formation of surface reaction layer on the sintering of β-SiC with an additive of yttrium aluminium garnet
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Article
Highly selective separation of CO2 and He by xerogel coated porous glass membrane
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Article
Novel alkali-resistant porous glass prepared from a mother glass based on the SiO2-B2O3-RO-ZrO2 (R = Mg, Ca, Sr, Ba and Zn) system
The alkali-resistant porous glass was prepared from the Si02-B203-RO (R=Mg, Ca, Sr, Ba and Zn) system containing Zr02. The porous glass skeleton contained 2–3 mass% Zr02 and the alkali resistance was greatly impr...
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Article
Polymer of captodative substituted methyl α-acetoxyacrylate: A new non-linear optical and high refractive acrylate polymer
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Article
Preparation of porous glass hollow fibre from glass based on SiO2-B2O3-RO-ZrO2 (R = Ca, Zn) system
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Article
Hydrolysis of trifunctional alkoxysilanes and corrosion resistance of steel sheets coated with alkoxysilane-derived films
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Article
Novel porous glass with chemical resistance and good sha** ability prepared from borosilicate glass containing ZnO
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Article
Microstructural investigation and indentation response of pressureless-sintered α- and β-SiC
The microstructure and indentation response of pressureless-sintered α- and β-SiC were studied using a high-resolution electron microscope and analytical electron microscopy. The materials were manufactured wi...
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Article
The strength of α-sialon ceramics
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Article
Oxygen content of α-Si3N4 single crystals