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Showing 1 to 20 of 31 for “"Ceramic composite"”.
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Properties and performance of a ceramic composite component
… the properties and performance of a tubular, ceramic composite component. Eight test specimens were fabricated using an injection molding process with a borosilicate glass matrix reinforced with chopped graphite fibers. These specimens were then tested under quasi-static and cyclic loading at …
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Fabrication & Mechanical Properties of Hastelloy-X Matrix Ceramic Composite
… based colloid to fabricate the metal matrix composites. Various fabrication processes, some using vacuum and pressure to assist the flow were utilized to infiltrate the scaffolds. The green composites were then cured at the required room or elevated temperature. Composites were characterized …
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Fabrication of ceramic and ceramic composite microcomponents using soft lithography
… project is set out to develop a high precision ceramic fabrication approach suitable for mass production, and to meet the needs of microengine application. A group of new processes have been developed and the results are characterized for fabrication of high precision ceramic oxides and …
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"Examination of Several Potential ""Transformation Weakeners"" for Ceramic-Composite Interfaces"
… broaden the use of transformable interphases in ceramic composites, investigations were conducted towards identifying several displacive phase transformations which could potentially be used in composites with alumina, YAG, and/or mullite. Phase transformations were examined in four materials: …
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A multiscale computational framework for ceramic composite structures with localized material nonlinearity
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Theoretical analysis of small crack growth in fiber-reinforced ceramic composite materials
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Cast Metal-Ceramic Composite Lattice Structures for Lightweight, Energy Absorbing, and Penetration Resistant Applications
… We first produced lightweight cast metal-ceramic composite panels of 225 x 225 x 60 mm. Our AM molds included provisions to install ceramic or hard metal tiles before pouring the molten metal. The tiles were encapsulated in the final casting to yield a composite structure. The initial …
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Manufacturing Strategies for NITE-processed SiC/SiC Ceramic Composite Components in the Liquid Sandwich Vacuum Vessel for Fusion Reactors
… within thin walls made of silicon carbide ceramic composite (SiC/SiC). By dissipating disruption forces within the liquid lead, the SiC/SiC walls can remain thin, improving heat transfer and the overall efficiency of the fusion reactor. However, SiC/SiC’s brittleness and anisotropy present …
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Sub-critical crack growth in a ceramic and a ceramic composite: Effects of monotonic loads, cyclic loads, and high temperatures
Advanced ceramics have toughened microstructures which resist crack propagation, and also allow considerable sub-critical crack growth prior to failure. The sources of toughening processes are the microstructural elements in the crack wake which induce closure tractions on the crack. This …
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Mechanics and Durability of Fiber Reinforced Porous Ceramic Composites
Porous ceramics and porous ceramic composites are emerging functional materials that have found numerous industrial applications, especially in energy conversion processes. They are characterized by random microstructure and high porosity. Examples are ceramic candle filters used in coal-fired …
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A Force Sensor Array for Space Applications
… capacitive sensors based on a porous polymer-ceramic composite structure were evaluated for potential use in future operations within robotic end-effectors, withstanding temperatures ranging from -80 °C to 120 °C and forces up to 350 kPa. A thin-film design is utilized to allow for …
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Manufacturing of advanced continuous fiber reinforced composites for high temperature applications
"New resin systems have enabled composites to be considered as attractive alternatives in structural applications that require material to be stronger, lighter and/or more resilient to environmental effects. The current work is on the development of processes to produce continuous fiber reinforced …
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Fabrication of 316-L stainless steel and composite micro machine components using softlithography and powder metallurgy process
… from stainless steel and stainless steel ceramic composite materials, using Softlithography and powder metallurgy processes. Three different 316-L stainless steel powders, including 5, 10 and 16 μm in size, and two different ceramics powders, including 400 nm alumina and 320 nm titania, …
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Study of Si(Al)CN functionalized carbon nanotube composite as a high temperature thermal absorber coating material
Carbon nanotubes (CNT) and polymer-derived ceramics (PDC) have gained considerable research attention due to their unique structure and physical properties. Carbon nanotubes are known for their exceptional mechanical (Young’s modulus= 1 TPa) and thermal properties (thermal conductivity = 4000 …
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Controlling ceramic porosity using carboxylate-alumoxane nanoparticles
… of carboxylate-alumoxanes, such as ceramic yield, particle size, pore volume, and pore diameter are dependent upon the carboxylate ligand that is substituted on the surface of the boehmite mineral. Of the synthesized alumoxanes, acetic acid-alumoxane (A-alumoxane), has the smallest …
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NITE–Processed SiC/SiC Ceramic Composites in Liquid Sandwich Vacuum Vessel
… proposes to use thin walls of silicon carbide ceramic composite (SiC/SiC) surrounding a layer of liquid lead. Because liquid lead is much more electrically conductive than SiC/SiC, the liquid lead absorbs disruption-induced currents and the resulting forces. This enables the use of a …
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The development of an interpretive methodology for the application of real-time acousto-ultrasonic NDE technique for monitoring damage in ceramic composites under dynamic loads
… (NDE) tool to study the failure mechanisms of ceramic composites. Progression of damage is monitored in real-time by observing the changes in the received AU signal during the actual test. During the real-time AU test, the AU signals are generated and received by the AU transducers attached to …
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Entwicklung und Erprobung eines porösen TiO 2-Glas-Verbundes als Knochenersatz
Prior application of a porous TiO2/glass composite as bone graft processing technology, biocompatibility and biofunctionality need to be evaluated. After preparing the moulding mass by coating of the pore-donating perlite glass granules ceramic shaping is performed by cold pressing. Extrusion and …
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An Investigation of Wear-Resistant Coatings on an A390 Die-Cast Aluminum Substrate
… nickel metal, hard coat anodizing and composite ceramic coating. The primary clutch sheave material is a die-cast A390 aluminum. A wear test stand was developed to duplicate wear found on CVTs currently in use. The wear was evaluated using four methods. First, the change in shift …
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Structural and Thermal Properties of Ignition Resistant Coatings for Reusable Rocket Engines
… has been determined to be a three-phase metal-ceramic composite composed of nickel, cerium borate, and barium alumino-borate glass. These phases have been verified through thermodynamic modeling using FactSage. Thermal properties are similar to IN-718, while mechanical properties such as …
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