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Showing 1 to 13 of 13 for “"SiC composite"”.
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Analysis of Creep Behavior and Parametric Models for 2124 Al and 2124+SiC Composite
… Tensile tests were conducted to determine the basic mechanical properties, and microstructural and chemical anyalyses were performed to characterize the starting materials. The creep, tensile, and microstructural data for the 2124+SiC composite were compared with a similarly processed …
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Sub-critical crack growth in a ceramic and a ceramic composite: Effects of monotonic loads, cyclic loads, and high temperatures
… crack growth behavior in alumina and SiC$\sb{\rm f}$/SiC composite under conditions which degrade the toughening processes.
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Fatigue crack growth in ceramics containing a viscous grain boundary phase at elevated temperatures
… and a hot-pressed 30 vol.% TiB$\sb2$-SiC composite was examined under tensile static loading (static fatigue) and tension-tension cyclic loading (cyclic fatigue). The study was carried out at temperatures of 700-900$\sp\circ$C, where the vitreous grain boundary phase flowed viscously. …
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Modelling of Graphite Elements and Low Enriched Fuel Assemblies for a High Temperature Gas-Cooled Reactor
… use a combination of UC and UO₂ fuel, with SiC composite and stainless-steel cladding. While each design meets the target reactivity, enrichment, and temperature limits, the most viable design for near-term deployment uses UO₂ fuel with 0.5 mm of stainless-steel cladding. This design has an …
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Studies on Sintering Silicon Carbide-Nanostructured Ferritic Alloy Composites for Nuclear Applications
Nanostructured ferritic alloy and silicon carbide composite materials (NFA-SiC) were sintered with spark plasma sintering (SPS) method and systematically investigated through X-ray diffraction (XRD), scanning electron microscopy (SEM), as well as density and Vickers hardness tests. Pure NFA, pure …
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The Adhesion Strength of a Plasma Sprayed Silicon Bond Coating on a Silicon Carbide Ceramic Matrix Composite
Silicon-based ceramics and ceramic matrix composites (CMCs), such as silicon carbide (SiC) fiber reinforced SiC, are promising candidates for hot section components in next generation turbine engines. Environmental barrier coatings (EBCs) are essential for implementing these components as they …
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Nondestructive evaluation of a high temperature ceramic matrix composite material
… characterize a 2-D Nicalon-reinforced, CVI-SiC matrix composite before and after exposure to 1000, 1200, and 1400 °C in oxidizing atmospheres of air. Concurrently, the nondestructive testing methods used to detect thermally induced changes in the SiC/SiC composite were evaluated. All of the …
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Additive Manufacturing of Aluminium-Metal Matrix Composite developed through Mechanical Alloying
… on utilising laser melting of Aluminium matrix composites in replacing specialised parts have been slow on the uptake. This has been attributed to the complexity of the laser melting process, metal/ceramic feedstock for the process and the reaction of the feedstock material to the laser. Thus an …
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Design optimization of advanced PWR SiC/SiC fuel cladding for enhanced tolerance of loss of coolant conditions
… on experimental work) on integrated multilayer SiC/SiC prototypical fuel cladding. In this work the mechanical performance of three unique architectures of three-layer silicon carbide (SiC) composite cladding is experimentally investigated under conditions associated with the loss of coolant …
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Engineered Alumina / Silicon Carbide Laminated Composites
… limited mechanical reliability. Several ceramic composites and, in particular, laminated structures have been developed in recent years to enhance strength, toughness and to improve flaw tolerance. Significant strength increase and improved mechanical reliability, in terms of Weibull modulus or …
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Magnon and phonon thermal transport in oxides
… I was able to map the thermal conductivity of SiC ceramic matrix composite (CMC) using TDTR. SiC composite has been a subject of study interest because of its potential application for nuclear fuel cladding. However, existing models only used the effective thermal conductivity or only assumed …
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Mapping the thermal conductivity of SiC/SiC composites
… (TDTR) to map the thermal conductivity of SiC/SiC composites that are being considered for use as replacement materials in current light-water reactors (LWR), and also as materials for use in next generation nuclear reactors. The thermonuclear properties of the SiC/SiC composites can be …