Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"porous titanium"”.
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Porous titanium felts as alternative metal gas diffusion layers for low temperature PEM fuel cells
… the PEMFC. This experimental study investigates titanium fibre felts as an alternative cathode GDL material, applied and tested in a 25cm2 PEMFC. The study consists of: i) investigation of the felts varying in thickness from 200 µm to 1000 µm, ii) application of a hydrophobic treatment of 5 – 20 …
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Effect of pore size on bone ingrowth into porous titanium implants fabricated by additive manufacturing: An in vivo experiment
Subscription articles: Theses and dissertations which contain embedded PJAs as part of the formal submission can be posted publicly by the awarding institution with DOI links back to the formal publications on ScienceDirect.doi:10.1016/j.msec.2015.10.069
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Formation of Meso-Structured Multi-Scale Porous Titanium Dioxide by Combined Soft-Templating, Freeze-Casting and Hard-Templating Using Cellulose Nanocrystals
… and versatile technique for creating multi-scale porous titania with tunable meso-scale morphology. Three templating approaches were simultaneously utilized in achieving this; namely, soft-templating by template-free self-assembly of an aligned macroporous structure, freeze-casting for the …
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OXIDATION AND REDUCTION SYNTHESIS OF SURFACE ENHANCED TITANIUM-BASED ELECTRODES FOR ELECTROLYTIC CAPACITORS
… power pulses, for example in spot welders. Titanium-based oxides with high dielectric constants are candidate for the dielectric layer in electrolytic capacitors. The research in the thesis focuses on fabrication methods to form surface-enhanced titanium-based electrodes with sub-micrometer …
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Design And Evaluation Of Novel Open-Pore Titanium Foams
Porous titanium (Ti) materials have a variety of applications including hydrogen storage, electrodes, catalysts, catalyst supports, structural sandwich cores, and orthopedic and dental implants. In the present study, novel open-pore titanium foams have been developed using camphene to freeze-cast …
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Bacterial biofilms and biomineralisation on titanium
… study investigated bacterial interactions with titanium, and evaluated the use of Serratia biomineralisation to produce a hydroxyapatite (HA) coating on titanium. Adherence of Gram-positive Staphylococcus epidermidis and Streptococcus sanguinis and Gram-negative Serratia sp. NCIMB 40259 and …
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Development of Precision 3D-Printed Medical Implants
… bacteria S. aureus adhesion on a newly developed titanium alloy Ti-12Nb-12Zr-12Sn alloy (Ti12), Ti-6Al-4V alloy (Ti64), and commercially pure titanium (CPT) were investigated. Materials exhibited biocompatibility and demonstrated distinct cell morphological differences with osteoblast and …
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Thermomechanical Modeling of Oxidation Effects in Porous Ultra-High Temperature Ceramics
… of oxidation in the thermomechanical response of porous titanium diboride have been investigated. An in-house quasi-static material point method tool was used to perform two -dimensional plane strain simulations on unoxidized hexagonal representative volume elements (RVEs) with macroporosity …
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Reverse Microemulsion System In Compressed Co2: Phase Behavior and Applications For Cleaning Biomaterials
… the removal of E. coli endotoxin from smooth and porous titanium (Ti) surfaces and stainless steel (SS) lumens using compressed CO2 and CO2-based mixtures. Surfactant Ls-54 (a non-ionic and non-fluorinated surfactant) was incorporated to form water-in-CO2 microemulsions. It was found that the …
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Development of a biodegradable biopolymer from renewable natural resources suitable for additive manufacturing and bone tissue engineering
… biopolymer blend as an antibacterial coating for titanium implants was investigated. In the present study chitosan was prepared using ascorbic acid blended with poly(vinyl acetate), a biocompatible synthetic polymer, to aid the printing process. Formulation optimisation was performed to establish …
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Synthesis, Microstructure and Mechanical Properties of Titanium with Controlled Levels of Porosity
Porous titanium (Ti) products have many applications due to their excellent corrosion resistance, high strength-to-weight ratio, high specific surface area, etc. However, the major limitation is the expensive cost of porous Ti products because of the high raw materials costs and the difficulty of …
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Influence of Biomaterials in Alveolar Bone Regeneration and Preservation
… the mechanical and non-resorbable properties of titanium, known to be highly compatible in vivo and highly resistant to body fluid corrosion, are potential advantages for bone augmentation prior to dental implantation. Nevertheless, the use of titanium particles as space fillers in bone …