Silicon Carbide Platelets

  • Oxidation of 6H-Alpha Silicon-Carbide Platelets

    Download Citation | Oxidation of 6H-Alpha Silicon-Carbide Platelets | Oxidation on the 2 crystal faces of SiC platelets was studied. The oxidation of the C face followed a simple parabolic law and ...

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  • US4981665A - Hexagonal silicon carbide platelets and ...

    Crystalline silicon carbide wherein at least 90 weight percent of the silicon carbide is formed from a plurality of hexagonal crystal lattices wherein at least 80 weight percent of the crystals formed from …

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  • Study on Thermal Shock in Si3N4/SiC platelets

    silicon carbide platelet reinforced with silicon nitride is a composite material that can be used for thermal shock applications in which materials with a high resistance against crack growth but not to crack initiation are needed. The results lead to the following conclusions: 1. The platelet composite material has a value of

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  • Shifting to 200 mm silicon carbide - News

    Shifting To 200 Mm Silicon Carbide. Monday 18th October 2021. ... The starting point for seed development dates back to the 1990s, with the formation of self-nucleated Lely platelets with a 4 mm by 4 mm cross-section. These days, efforts are directed towards expanding seeds from 150 mm to 200 mm, a challenging task given that the newly expanded ...

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  • Silicon carbide platelet-reinforced silicon nitride ...

    Different grades of high aspect ratio SiC platelets were used to reinforce Si3N4. Dispersion of additives (4 wt % Y203 and 3 wt % Al203) was achieved by ball milling in ethanol using alumina balls, while dispersion of platelets …

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  • Palladium‐Based Metallic Glass with High Thrombogenic ...

    Platelets that adhered to the Pd-glass surfaces were monolayered and well-spread without aggregation, whereas those adherent on Ti64 were ... the superior blood compatibility of semiconducting amorphous hydrogenated silicon carbide …

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  • Processing and creep behaviour of silicon carbide-platelet ...

    Processing and creep behaviour of silicon carbide-platelet reinforced alumina. Ham-Su, Rosaura. Abstract. The creep rates of SiC whisker reinforced Al2O3 have been found to be one or two orders of magnitude lower than the creep rate of unreinforced alumina. However, whiskers are a serious health hazard due to their asbestos-like geometry, they ...

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  • Surface oxidation of silicon carbide platelets as studied ...

    X-ray photoelectron spectroscopy (XPS) and Bremsstrahlung-excited Auger electron spectroscopy (XAES) were used to study the surface composition and oxidation of silicon carbide platelets which had be...

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  • Silicon Carbide Ceamic Grinding Media | Advanced Ceramic ...

    Download Silicon Carbide SDS . Silicon Carbide Grinding Media Description. Silicon Carbide Grinding Media is a very high-cost grinding media that are used for milling same materials (silicon carbide ball to mill silicon carbide materials) to avoid contamination. It has good wear resistance and high density. Sizes ranging from 5mm, 10mm, 12mm, 15mm and 20mm sizes.

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  • Palladium‐Based Metallic Glass with High Thrombogenic ...

    Platelets that adhered to the Pd-glass surfaces were monolayered and well-spread without aggregation, whereas those adherent on Ti64 were ... the superior blood compatibility of semiconducting amorphous hydrogenated silicon carbide (a-SiC:H) coatings has been explained by a change in electron-transfer efficiency from fibrinogen to the ...

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  • Silicon Carbide Platelet/Alumina Composites: I, Effect of ...

    SiC-platelet-reinforced Al2O3-matrix composites were made by three different forming techniques, i.e., slip casting, tape casting, and dry compaction of a granulated powder. All samples were densifie...

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  • Oxidation of 6H‐α Silicon Carbide Platelets, Journal of ...

    Oxidation of 6H‐α Silicon Carbide Platelets Oxidation of 6H‐α Silicon Carbide Platelets HARRIS, RICHARD C. A. 00:00:00 We thank Melvin S. Foster of Argonne National Laboratory for assisting in the computer programming. M. Blander and S. 1. Yosim, â Conformal Ionic Mixtures,â J. Chem. Phys.. 39 [lo1 2610-16 ( % ) 13.

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  • Synthesis of Silicon Carbide Platelets by Double-Heating ...

    A new method for producing silicon carbide platelets with low cost and high yield was introduced. The silicon carbide platelets were synthesized by double-heating technique with carbon black and SiO2 powder as raw materials without using any catalysts. The starting mixtures were heated at a temperature in the range of 1800-2000°C for the duration of about 2-4h to …

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  • SiC Platelets Synthesized by Powder-Heating Technique ...

    A new method for producing silicon carbide platelets with low cost and high yield was introduced. The silicon carbide platelets were synthesized by powder-heating techniques with carbon black and SiO2 powder as raw materials and CoCl2 as catalyst. The starting mixtures were heated at a temperature in the range of 1800-2000°C for the duration of about 2-4h to …

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  • Silicon carbide │ Technical ceramics

    Silicon carbide (SiC) is a high-performance ceramic material made of high-quality, non-oxide powders and can be manufactured to the specific requirements of a wide range of applications. Due to its …

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  • X-Ray Topography of a 540R-SiC Lely Platelet

    Results: Synchrotron white-beam x-ray topography was performed on a silicon carbide Lely platelet of the polytype 540R in both the back-reflection and transmission geometries. The closely spacing of the spots in this crystal’s Laue pattern limited the reflections useful for topography to those whose close neighbors were structurally extinct.

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  • Enhanced strength and toughness of silicon carbide ...

    The wet chemistry process was chosen to mix silicon carbide, carbon black and graphene platelet due to its advantage of simplicity, effectiveness and low cost. Before mixing, the graphene platelets were ultrasonicated in acetone …

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  • Stent Passivation with Silicon Carbide as a Possible ...

    Hansi C, Arab A, Rzany A, et al., Differences of platelet adhesion and thrombus activation on amorphous silicon carbide, magnesium alloy, stainless steel, and cobalt chromium stent surfaces, Catheter Cardiovasc Interv, 2009;73:488–96.

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  • Reade Advanced Materials - Silicon Carbide (SiC) Powder ...

    Silicon Carbide Typical Physical Properties Available: Available as irregular shaped powder, crystals, platelets, wafer and boule. Numerous size distributions available from very coarse grits (1/2" pieces) all the way down to 20-100 nanometer particles.

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  • Pulmonary response, in vivo, to silicon carbide whiskers

    Fischer rats were exposed to silicon carbide whiskers (SiCW), boron carbide whiskers (BCW), silicon carbide platelets (SiCP), or crocidolite asbestos separately administered by intratracheal instillation. SiCW proved to be the most toxic material within the …

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  • Process for producing silicon carbide platelets - Alcan ...

    A process for producing silicon carbide platelets having a size of 20 μm or less, and the platelets so produced. The process comprises reacting particles of carbon from a source containing less than …

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  • Spark Plasma Sintering of Alumina Composites with Graphene ...

    This paper reports a study on sintering and characterization of alumina (Al 2 O 3) ceramic composites with graphene platelets (GPLs) and silicon carbide (SiC) nanoparticles. 1, 3, and 5 vol% SiC and 0.38 vol% GPL are mixed with Al 2 O 3 powders and sintered in a spark plasma sintering system. The microstructures and mechanical properties of the composites …

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  • US5002905A - Hexagonal silicon carbide platelets and ...

    US5002905A US07/184,994 US18499488A US5002905A US 5002905 A US5002905 A US 5002905A US 18499488 A US18499488 A US 18499488A US 5002905 A US5002905 A US 5002905A Authority …

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  • Shifting to 200 mm silicon carbide - News

    Shifting To 200 Mm Silicon Carbide. Monday 18th October 2021. ... The starting point for seed development dates back to the 1990s, with the formation of self-nucleated Lely platelets with a 4 mm …

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  • Silicon Carbide Platelet/Silicon Carbide Composites ...

    α-silicon carbide platelet/β-silicon carbide composites have been produced in which the individual platelets were coated with an aluminum oxide layer. Hot-pressed composites showed a fracture toughness as high as 7.2 MPa·m 1/2. The experiments indicated that the significant increase in fracture toughness is mainly the result of crack ...

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  • Silicon carbide platelet/silicon carbide composites ...

    OSTI.GOV Journal Article: Silicon carbide platelet/silicon carbide composites

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  • "Hemocompatibility Assessment of 3C-SiC for Cardiovascular ...

    c silicon carbide, thrombogenicity, platelet adhesion, circularity, cell proliferation. Abstract. The hemocompatibility of crystalline Silicon Carbide (SiC), in its cubic form (i.e., 3C-SiC), has been evaluated and compared to Silicon (Si), the leading material in biosensing applications. Silicon carbide (SiC) is a hard, chemically robust ...

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  • Process for producing silicon carbide platelets - Alcan ...

    A process for producing silicon carbide platelets having a size of 20 μm or less, and the platelets so produced. The process comprises reacting particles of carbon from a source containing less than 0.2% by weight of iron, with silica or a silica precursor at a temperature in the range of 1800°-2100° C. under an inert atmosphere in the presence of 0.2-10% by weight of …

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  • Synthesis of Silicon Carbide Platelets by Double-Heating ...

    A new method for producing silicon carbide platelets with low cost and high yield was introduced. The silicon carbide platelets were synthesized by double-heating technique with carbon black and SiO2 …

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  • The Cubic — To — Hexagonal Transformation to Toughen Sic ...

    Silicon carbide is a desirable high temperature structural material, however, its poor fracture toughness at room temperature has limited its practical application. Recent processing developments have toughened the microstructure with interlocking, plate-like grains and an ~1 nm thick amorphous grain boundary.

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  • Pulmonary response, in vivo, to silicon carbide whiskers

    Fischer rats were exposed to silicon carbide whiskers (SiCW), boron carbide whiskers (BCW), silicon carbide platelets (SiCP), or crocidolite asbestos separately administered by intratracheal instillation. …

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