Keyword: ceramics

Total Papers Found: 35

Thermal conductivity of highly porous ceramic foams with different agar concentrations

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This paper discussed the creation of ceramic foams with various amounts of agar added. The foams used fly ash as the raw material in order to make them more environmentally ...

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Thermal properties of green alumina porcelain

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The thermal properties, as well as bulk density, and mass loss of alumina porcelain were determined as a function of firing temperature. It was found that after sintering at 1320 ºC, ...

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Influence of Sliding Speed on the Tribological Characteristics of Si3N4-hBN Ceramic Materials

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A disc of a composite ceramic material composed of silicon nitride (Si3N4) and 20% hBN was prepared and its tribological characteristics were investigated by sliding a Si3N4 pin across ...

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The design of a ceramic phosphor plate with functional materials for application in high power LEDs 

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Lutetium aluminum garnet activated by cerium (LuAG:Ce) materials containing functional materials (SiO2 and MgO) were prepared. These materials are used in LEDs, and they require a high thermal conductivity ...

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Structure and oxidation resistance of micro-cellular Si–SiC foams derived from natural resins

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Si-SiC composite foams were prepared using tannin-based foams as templates. The foams were prepared by four different methods for the determination of which method would best produce a foam with ...

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Synthesis and characterization of silica aerogel and its composite materials

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Composite silica aerogels were prepared using sodium silicate and ceramics fibers. The thermal conductivities of these composites were investigated to determine how effective they would be as thermal insulation. As ...

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Preparation of Porous Mullite Ceramics Using Fly Ash Cenosphere as a Pore‐Forming Agent by Gelcasting Process

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This article discusses the creation of a porous mullite ceramic through the incorporation of fly ash cenospheres (FAC) into mullite powder through the gelcasting process. Sintering temperature and the amount ...

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Thermal conductivity of porous materials

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The effects of solid phase thermal conductivity, pore thermal conductivity, and pore volume fraction on the measured effective thermal conductivity of porous ceramics with pore volume fractions of 4 to 95% were ...

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Design of ceramic phosphor plate with functional materials for applications in high power LEDs 

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Traditionally, white LED's are made by mixing phosphor with an epoxy resin. But, the phosphor is not always evenly distributed, and the epoxy resin has a low thermal conductivity resulting ...

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