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Showing 1 to 12 of 12 for “"SiCN"”.
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Investigations On Rf Sputter Deposited Sicn Thin Films For Mems Applications
… chemical and physical properties of the SiCN thin films. Thin films of amorphous silicon carbide nitride (a-SiCxNy) were deposited in a RF magnetron sputtering system using a powder pressed SiC target. Films with various compositions were deposited on to silicon substrate by changing the …
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From Aminopyridinato Complexes via Metal Containing SiCN Precursor Ceramics to Heterogeneous Recyclable Oxidation Catalysts
… die auch in Siliziumcarbonitridkeramiken (SiCN) enthalten sind. Diese werden aus Polysilazanen durch Vernetzung und anschließender Pyrolyse hergestellt. Aufgrund ihrer Herstellungsweise aus molekularen Vorläufern kann der Einbau von Metallen in die Keramik auf einem molekularen Weg …
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Mesostructuring of SiCN Materials and Catalysts via Microphase Separation Technique utilizing High-Density Polyethylene Blocks
… the synthesis of structurally inverted porous SiCN (siliconcarbonitride) 2) SiCN mesomaterials using PE-OH as porogen 3) porous SiCN supported gold catalysts. Porous polyethylene template was synthesized from polyethylene-block-polylactide (PEOPL) copolymer by microphase separation technique …
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Design of Robust Heterogeneous Catalysts for Sustainable Chemistry
… based on polymer derived non-oxide ceramics (SiC/SiCN) with integrated late transition metal (Ni, Pd) nanoparticles (NPs) were designed, characterized and tested for their catalytic potential. For the decoration of SiCN support with metal NPs, a molecular approach was applied which makes the use …
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Polymer-derived Si-al-c-n Ceramics:oxidation, Hot-corrosion, And Structural Evolution
… evolution and crystallization behavior of the SiCN and SiAlCN ceramics are investigated using FT-IR, XRD, and NMR. The results revealed that aluminum could greatly affect the structural evolution and crystallization behavior of polymer-derived ceramics, resulting to better stability. The …
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1, 2, and 3 Dimension Carbon/Silicon Carbon Nitride Ceramic Composites
… 3-D bulk, carbon-rich silicon carbon nitride (SiCN) ceramics. 1-D nanofibers were prepared via electrospinning for light weight, flame retardant and conductive applications. The commercially available CerasetTM VL20, a liquid cyclosilazane pre-ceramic precursor, was mixed with polyacrylonitrile …
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Polymer-derived Ceramics: Electronic Properties And Application
… Systems) structures. Polymer-derived SiCN ceramics were synthesized by pyrolysis of a liquid polyureasilazane with dicumyl peroxide as thermal initiator. The structural evolution during pyrolysis and post-annealing was studied using FTIR, solid state NMR and Raman. The results revealed …
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Smart material composites for magnetic field and force sensors
… — carbon nanotube (CNT) – silicon carbonitride (SiCN) (piezoresistive). Recently, Islam et al. have reported a magnetic field sensor based on a piezoelectric transformer with a ring- dot electrode pattern. In this thesis, this design was further investigated by synthesizing Terfenol-D / PZT …
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Reactive Plasma Etching of Silicon Carbide, Silicon Carbonitride, and Titanium Nitride in a Tetrafluoroethane/Oxygen Plasma
… use silicon carbide (SiC), silicon carbonitride (SiCN), and titanium nitride (TiN) as our diffusion layer. Using the RF plasma and the magnetron gun with 1,1,1,2 tetrafluoroethane and oxygen as the active gases, we will obtain a reliable and reproducible method for determining the maximum etch …
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Design and Fabrication of Microreactors for High Temperature Applications
… the fabrication and characterization of SiC and SiCN inverted beaded catalyst supports, which have high chemical and thermal stability (are stable to 1200°C in air), are highly porous (have a void fraction of 0.74) to reduce the pressure drop across the reactor, and have a high surface …
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Ceramic Microreactors for on-Site Hydrogen Production
… silicon carbide (SiC) or silicon carbonitride (SiCN) porous monoliths integrated within high-density alumina reactor housings. Subsequent characterization of these novel ceramic microreactors for on-site H2 production was performed using the decomposition of ammonia and the steam reforming of …
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Novel Conceptual Design And Anlysis Of Polymer Derived Ceramic Mems Sensors For Gas Turbine Environment
Technical challenges for developing micro sensors for Ultra High Temperature and turbine applications lie in that the sensors have to survive extremely harsh working conditions that exist when converting fuel to energy. These conditions include high temperatures (500-1500°C), elevated pressures …