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Showing 1 to 12 of 12 for “"MECHANICAL STRENGTHS"”.
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Development of Next-Generation Construction Materials with Graphene Additives
… materials, such as dosages and sizes, on mechanical and durability properties of the composites, and enhancing mechanism of pristine graphene (PRG) in the cement matrix. Moreover, no study has been reported on the influence of graphene oxide (GO) additives on mechanical and durability …
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Breakdown in high voltage, high energy density multilayer ceramic capacitors
"Causes of breakdown, both mechanical and electrical, in high voltage, high energy density, BaTiO₃ multilayer ceramic capacitors were studied. The flexural strength of the capacitors was 96 +/- 13 MPa. Failure was due to surface defects or pores close to the surfaces of the samples. The dielectric …
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Sintering and Characterizations of 3D Printed Bronze Metal Filament
… and characterization of the microstructure and mechanical properties of 3D printed specimens to produce strong specimens. The thesis includes three components: (1) 3D printing and sintering at selected conditions, following a design of experiment (DOE) principle; (2) microstructure and …
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Study of Durability of Epoxy Bonded Joints in Aqueous Environments
… 3.4% NaCl solution for various time periods. The mechanical strengths of the bonded joints were evaluated using a three-point flexure test. The neat epoxy samples were also aged under the same conditions, and three-point flexure test and dynamic mechanical analysis (DMA) were performed to evaluate …
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The Design Modelling of PEEK Composite for Bone Implants
… and rGO significantly boosted the material's mechanical strengths to match those of a hip bone. The elastic modulus, anisotropy, and cell properties were also investigated, resulting in a PEEK-hydroxyapatite (HAp) composite with micropores and nanostructures, promoting bioactivity, controlled …
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The Chemical Durability of Elastomeric Bituminous Geomembranes (BGMS) in Different Geoenvironmental Applications at Elevated Temperatures
… thickness, and incubation media on the mechanical, rheological, and chemical properties of BGMs are examined. Exposure to elevated temperatures resulted in the thermo-oxidative degradation of the bituminous coat that increased its rigidity. Concurrently, the BGM exhibited degradation in …
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Assessment of Injection Behavior of Commercially-available Bone BSMS for Subchondroplasty Procedures
… in the market that can provide both the adequate mechanical support and the right viscosity to reach the affected area in the subchondral bone. In addition, there is also no established parameter for their proper use, based on the defect size and location. PMMA possesses comparable mechanical …
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THE STRUCTURE AND REACTIVITY OF SOME METALLURGICAL CARBONS
… have been estimated by image analysis. Mechanical strengths of the cokes have been measured and correlated with porosity data. Selected metals in the carbons have been determined by flame photometry, atomic absorption spectroscopy and Mossbauer spectroscopy. The composition of residual …
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Geopolymer composites and their applications in stress wave mitigation
… 80% less CO2 than OPC. Therefore, the chemical, mechanical, thermal and electrical properties of geopolymers have been of interest for the past two decades. The processes and microstructures of potassium-based geopolymer (K2O ∙ Al2O3 ∙ 4SiO2 ∙ 11H2O) have been studied by many researchers with …
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Characterisation of Halogen Free Fire Retardant Polypropylene Composites Reinforced by Short Natural Fibres
… and thereby promote adverse effects on the mechanical properties of the composites. Use of intumescent ammonium polyphosphate (APP) in composites has substantially addressed this issue due to its inherent intumescent properties and is an effective way to improve flame retardance of natural …
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Biomechanical and Finite Element Analyses of Alternative Cements for use in Vertebral Kyphoplasty
… PMMA to treat the fractured vertebrae due to its mechanical properties. However, with time the bone erodes around the cement due to osteoporosis and inhibited bone remodeling due to the cyotoxicity of PMMA [1, 2]. Acrylic monomers left over from the polymerization of PMMA are responsible for the …
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ΜΕΛΕΤΗ ΤΗΣ ΠΑΡΑΓΩΓΗΣ ΧΑΡΤΟΜΑΖΑΣ ΜΕ ΧΛΩΡΙΩΣΗ ΠΡΟΥΔΡΟΛΥΜΕΝΟΥ ΑΧΥΡΟΥ: ΠΡΟΒΛΗΜΑΤΑ ΕΦΑΡΜΟΓΗΣ
… STRAW PARTICLE AVERAGE SIZE. FINALLY, THE PULP MECHANICAL STRENGHTS AND BRIGHTNESS WERE DETERMINED AND THE EFFECT OF THE MAIN TREATMENT PARAMETERS ON THE PULP PROPERTIES WAS EXAMINED.