[go: up one dir, main page]

Da Silva et al., 1996 - Google Patents

Niobium carbide synthesis from niobium oxide: study of the synthesis conditions, kinetics, and solid-state transformation mechanism

Da Silva et al., 1996

Document ID
6629097744379690086
Author
Da Silva V
Schmal M
Oyama S
Publication year
Publication venue
Journal of Solid State Chemistry

External Links

Snippet

The carburization of B-niobium oxide (B-Nb2O5) to niobium carbide (NbC) in 20%(v/v) CH4/H2was studied at temperature-programmed conditions. The reaction required high temperatures, greater than 1370 K, and variations of heating rate (0.04–0.17 K s− 1) and …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/22—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/38—Borides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B31/00—Carbon; Compounds thereof
    • C01B31/02—Preparation of carbon; Purification; After-treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds

Similar Documents

Publication Publication Date Title
Da Silva et al. Niobium carbide synthesis from niobium oxide: study of the synthesis conditions, kinetics, and solid-state transformation mechanism
Schwarz et al. Spinel‐Si3N4: Multi‐anvil press synthesis and structural refinement
Koc et al. Tungsten carbide (WC) synthesis from novel precursors
Oyama et al. Preparation and characterization of early transition metal carbides and nitrides
Volpe et al. Compounds of molybdenum and tungsten with high specific surface area: II. Carbides
Klein et al. Reduced‐pressure chemical vapor synthesis of nanocrystalline silicon carbide powders
US4851206A (en) Methods and compostions involving high specific surface area carbides and nitrides
Bonnet et al. Study of the oxide/carbide transition on iron surfaces during catalytic coke formation
Zhang et al. Reduction of titania by methane-hydrogen-argon gas mixture
Bonnet et al. Filamentous carbon formation caused by catalytic metal particles from iron oxide
Krutskii et al. Synthesis of highly dispersed boron carbide from nanofibrous carbon
Kapoor et al. Synthesis of high surface area vanadium nitride
Yu et al. Structural, surface, and catalytic properties of a new bimetallic V-Mo oxynitride catalyst for hydrodenitrogenation
Gavrikov et al. Supercritical fluid-assisted modification combined with the resynthesis of SmCoO 3 as an effective tool to enhance the long-term performance of SmCoO 3-derived catalysts for the dry reforming of methane to syngas
Damma et al. Ce/Cr and Ce/Co modified ferrite catalysts for high temperature water-gas shift reaction at elevated pressures
Nakonechna et al. EFFECT OF CARBON NANOTUBES ON MECHANOCHEMICAL SYNTHESIS OF d-METAL CARBIDE NANOPOWDERS AND NANOCOMPOSITES.
Kim et al. Preparation and characterization of niobium carbide and carbonitride
JPH0345007B2 (en)
Yao et al. An investigation of the thermal stability, crystal structure and catalytic properties of bulk and alumina-supported transition metal nitrides
Won et al. Preparation of ultrafine tungsten carbide powder by CVD method from WCl6–C2H2–H2 mixtures
Hong et al. Experimental studies of magnetite formation in the solar nebula
Komatsu et al. Creation of superhard B–C–N heterodiamond using an advanced shock wave compression technology
Khassin et al. Characterization of the nickel-amesite-chlorite-vermiculite system. Part I. Silicon binding in Ni–Mg–Al phylloaluminosilicates
Pokropivny et al. Fluid synthesis and structure of a new boron nitride polymorph—hyperdiamond fulborenite B12N12 (E phase)
Buscaglia et al. Effect of pressure on the composition and superconducting Tc value of NbN prepared by combustion synthesis