silicon carbide porous

silicon carbide porous

  • Structural and spectroscopic characterization of porous silicon

    Abstract. A novel electroless method of producing porous silicon carbide (PSiC) is presented. Unlike anodic methods of producing. PSiC, the electroless process does not require electrical contact during etching. Rather, platinum metal deposited on the wafer before etching serves as a alyst for the reduction of a chemical 

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  • Silicon carbide foam as a porous support platform for alytic

    This review provides an overview of the use of foamstructured SiC as a porous support platform in some typical alytic processes both for gasphase and liquidphase reactions, such as H2S selective oxidation, Friedel–Crafts benzoylation and Fischer–Tropsch synthesis, where traditional alysts have shown The 

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  • Silicon Carbide SiC Material Properties

    Silicon Carbide Properties. Mechanical. SI/Metric (Imperial). SI/Metric. (Imperial). Density. gm/cc (lb/ft3). 3.1. (193.5). Porosity. % (%). 0. (0). Color. —. black. —. Flexural Strength. MPa (lb/in2x103). 550. (80). Elastic Modulus. GPa (lb/in2x106). 410. (59.5). Shear Modulus. GPa (lb/in2x106). —. —. Bulk Modulus.

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  • Combustion in a Hybrid Porous Burner Packed with Alumina Pellets

    Combustion of premixed methane/air in a hybrid porous burner is experimentally studied. The burner is filled with alumina pellets in the preheating zone and silicon carbide foams with a gap in the combustion region. Different lengths and loions of gap are evaluated to identify how the geometric parameters affect flame 

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  • Processing and mechanical properties of porous silicabonded

    A simple processing route for manufacturing highly porous, silicabonded SiC ceramics with spherical pores has been developed. The strategy adopted for making porous silicabonded SiC ceramics

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  • Oxidation bonding of porous silicon carbide ceramics SpringerLink

    A oxidationbonding technique was successfully developed to fabrie porous SiC ceramics using the powder mixtures of SiC, Al2O3and C. The oxidationbonding behavior, mechanical strength, open

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  • Porous biomorphic silicon carbide ceramics coated with

    Mater Sci Eng C Mater Biol Appl. 2016 Nov 168:143152. doi: 10.1016/j.msec.2016.05.113. Epub 2016 May 26. Porous biomorphic silicon carbide ceramics coated with hydroxyapatite as prospective materials for bone implants. Gryshkov O(1), Klyui NI(2), Temchenko VP(3), Kyselov VS(4), Chatterjee A(5), Belyaev AE(6), 

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  • Silicon carbide foam as a porous support platform for alytic

    This review provides an overview of the use of foamstructured SiC as a porous support platform in some typical alytic processes both for gasphase and liquidphase reactions, such as H2S selective oxidation, Friedel–Crafts benzoylation and Fischer–Tropsch synthesis, where traditional alysts have shown The 

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  • Photoluminescence studies of porous silicon carbide

    Received 27 July 1994 accepted for publiion 7 February 1995. A detailed investigation of the dependence of the photoluminescence from porous silicon carbide on preparation conditions and starting material is presented. Porous silicon carbide prepared from different polytypes shows almost identical emission spectra, 

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  • White Light Emission from Fluorescent SiC with Porous Surface

    Aug 29, 2017 We report for the first time a NUV light to white light conversion in a NB codoped 6HSiC (fluorescent SiC) layer containing a hybrid structure. The surface of fluorescent SiC sample contains porous structures fabried by anodic oxidation method. After passivation by 20 nm thick Al2O3, the 

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  • Silicon Carbide Refractron Technologies Corp

    Silicon Carbide (SiC) porous ceramics with a hybrid reaction bond can withstand higher temperatures than traditional glassbonded porous ceramics. Silicon carbide offers chemical durability, thermal shock and creep resistance for appliions up to 1200ºC (2192ºF). Refractron offers SiC formulations in a variety of sizes to 

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  • Oxidation bonding of porous silicon carbide ceramics SpringerLink

    A oxidationbonding technique was successfully developed to fabrie porous SiC ceramics using the powder mixtures of SiC, Al2O3and C. The oxidationbonding behavior, mechanical strength, open

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  • Morphological features of porous silicon carbide obtained via a

    Jul 29, 2017 Abstract. Samples of porous silicon carbide were obtained using sucrose or carbon and aerosil or silica mesoporous molecular sieves (SBA3, SBA15, KIT6 and MCF). Fibers content in silicon carbide samples is higher when the mesopore surface area of carbon materials derived from carbonsilica 

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  • Liquid Phase Sintered Silicon Carbide CoorsTek

    The low porosity microstructure of liquid phase sintered silicon carbide gives it excellent mechanical propertiesan ideal material for machinery appliions.

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  • Photoluminescence studies of porous silicon carbide

    Received 27 July 1994 accepted for publiion 7 February 1995. A detailed investigation of the dependence of the photoluminescence from porous silicon carbide on preparation conditions and starting material is presented. Porous silicon carbide prepared from different polytypes shows almost identical emission spectra, 

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  • Silicon Carbide Poco Graphite

    page. Preface ii. Table of Contents iii. List of Figures iv. List of Tables v. Chapter 1 Introduction. 1. 1.1 History. 1. 1.2 The SiC System. 1. 1.3 Production of SiC. 2. 1.4 Fabriion of SiC Products. 3. 1.5 POCO Process. 3. Chapter 2 Physical and Chemical Properties of SiC. 5. 2.1 Crystal Structure. 5. 2.2 Density and Porosity. 5.

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  • Progress for silicon carbide LED Linköping University

    Sep 22, 2017 "The Danish researchers have modified the surface of the silicon carbide and given it a porous structure that emits the bluegreen light. When used with doped silicon carbide, the technique produces an integrated structure that emits a white light. This is the first time that a combination of two steps (doping 

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  • Processing and properties of macroporous silicon carbide ceramics

    Macroporous silicon carbide is widely used in various industrial appliions including filtration for gas and water, absorption, alyst supports, concentrated solar power, thermoelectric conversion, etc. During the past several years, many researchers have found diverse routes to fabrie macroporous SiC with porosity 

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  • Synthesis and properties of porous SiC ceramics American Institute

    Keywords: SiC ceramics, impregnation, phase composition, density, hardness. Porous silicon carbide ceramics are produced using carbon matrices derived from natural wood. Such material is especially promising as it is environmentally friendly with attractive physical properties, including a high level of biocompatibility, 

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  • Hot Gas Filtration Using Porous Silicon Carbide Filters AZoM

    Sep 19, 2005 Porous silicon carbide candletype filters suitable for the condition of pressurized fluidizedbed combustion (PFBC) operations were prepared by several processes. Filtering characteristics of the porous filters with different geometry, tubetype and cogwheeltype, and various porosities were invest.

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  • Engineering porosity in silicon carbide ceramics SpringerLink

    Porosity and microstructure control of the strut are essential for tailoring the properties of porous SiC ceramics. This study examined four different strategies for engineering the porosity of SiC

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  • Porous Silicon Carbide Sintered Substrates for ACS Publiions

    Silicon carbide (SiC) porous substrates are prepared by pressureless sintering of SiC powders under an inert atmosphere of argon. The porous SiC substrates were characterized by measuring their porosity, pore size distribution, surface characteristics, and structure. Their transport characteristics were investigated using 

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  • Porous Silicon Carbide Sintered Substrates for ACS Publiions

    Silicon carbide (SiC) porous substrates are prepared by pressureless sintering of SiC powders under an inert atmosphere of argon. The porous SiC substrates were characterized by measuring their porosity, pore size distribution, surface characteristics, and structure. Their transport characteristics were investigated using 

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  • Morphological features of porous silicon carbide obtained via a

    Jul 29, 2017 Abstract. Samples of porous silicon carbide were obtained using sucrose or carbon and aerosil or silica mesoporous molecular sieves (SBA3, SBA15, KIT6 and MCF). Fibers content in silicon carbide samples is higher when the mesopore surface area of carbon materials derived from carbonsilica 

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  • Porosity control of porous silicon carbide ceramics ScienceDirect

    Porous SiC ceramics were fabried by the carbothermal reduction of polysiloxanederived SiOC containing polymer microbeads followed by sintering. The effect of the SiC powder:polysiloxanederived SiC (SiC:PDSiC) ratio on the porosity and flexural strength of the porous SiC ceramics were investigated. The porosity 

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  • Microstructural control of macroporous silicon carbide JStage

    Wide range of porosity in 3090 vol% could be created into silicon carbide by employing carefully selected manufacturing methods. Two fabriion methods have been proposed and reviewed in the present paper: (1) partial sintering of submicrometer sized silicon carbide particle with a suitable amount of sintering additive, 

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  • Effect of Activator on Properties of SiC Porous EnPress Journals

    ABSTRACT. In this study, porous silicon carbide ceramics were prepared by using silicon carbide as the main material and sodium carboxymethyl cellulose (CMC) as the poreforming agent. SiO2Y2O3Al2O3 and SiO2kaolin were used as the builders respectively. This study is about the effect of SiO2Y2O3Al2O3 and 

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  • Porous silicon carbide and aluminum oxide with unidirectional open

    Mar 28, 2018 Abstract: New silicon carbide (SiC) and aluminum oxide (Al2O3) of a tailormade microstructure were produced using the icetemplating technique, which permits controlled pore formation conditions within the material. These prototypes will serve to verify aging of the new advanced target materials under 

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