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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 20 of 32 for “"Electroless Plating"”.
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Tin Sensitization For Electroless Plating
<p>The tin sensitization process has been used in electroless plating since 1940s Brenner and Riddell developed the electroless plating for surface metallization method. It was found to be an interesting topic to study tin sensitization for chemically controlling metal deposition on different …
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Metal seed deposition from organic solutions for subsequent electroless plating
… substrates from organic solutions for subsequent electroless Cu plating is being developed. The mechanism is based on spontaneous electrochemical displacement reactions. The more noble metal is reduced and deposited on the substrate surface; simultaneously the less noble metal is oxidized and …
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Development and testing of thin composite palladium membrane for membrane fuel cell processors.
… Pd metal as a thin layer by using advanced electroless plating coupled with partial suction method onto a 30nm -Al2O3 support. The suction pressure creates a pressure difference between the bore and tube side of the support and this will eventually encourage the transfer of more Pd metal …
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Development and testing of inorganic membranes for hydrogen separation and purification in a catalytic membrane reactor.
… support using both conventional and modified electroless plating methods. The hydrogen separation and purification behaviour of the membranes were investigated, including the effect of annealing at higher temperatures. Gas permeation through silica and alumina membranes was investigated for …
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Electroless deposition of group eight metals
Electroless plating is the controlled chemical reduction of metals without the use of an applied external potential. The use of electroless plating has a number of advantages over electroplating including the ability to deposit coatings onto complex-shaped objects which can be metallic or …
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Fabrication and Characterization of a Disk Ring Shaped Dual Nanometer-Sized Electrode and Its Application to Generation-Collection.
… well as formation mechanism of the gold film by electroless plating are discussed.</p>
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Selective growth of magnetic nanoparticles in domains of block copolymer films, and in polyelectrolyte multilayers
… nucleating sites followed by the use of an electroless plating bath. Control of particle size and spatial distribution has been demonstrated. The effect of electroless bath chemistry on particle composition has been examined.
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Development of the gel plating process for selective gold metallization
A Gel Plating Process for selective gold metallization was developed in this thesis. The Gel Plating Process selectively plates metal on catalytic features without exposing sensitive area, of the substrate surface to a corrosive plating bath. This process utilizes an electroless plating bath and …
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Effects of Electrode Surface Morphology on the Transduction of Ionic Polymer-Metal Composites
… of the mentioned electrodes through the electroless plating process. Using these techniques, IPMCs with different electrode surface structures are fabricated. The changes in the electrode surface morphology and the resulting effects on the material's electromechanical, mechanoelectrical, …
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Selection and optimization of the seeding procedure prior to the synthesis of Pd-based membranes
… to produce defect free Pd-based films, using electroless plating. The first step in the preparation technique involves “seeding” of the support structure. Even though these seeds, if well distributed and anchored to the support, are crucial in order to obtain the defect free Pd layer, they …
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Protein crystals as templates for materials chemistry
… can be grown in HEWL crystals using an electroless plating technique in which palladium ions bound to amino acids are subsequently reduced and form a catalytic surface for the deposition of platinum metal. If these nanoparticles are grown in a macromolecular crystal with larger pores, …
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SYNTHESIS, CHARACTERIZATION, DECORATION AND FILLING OF CARBON NANOTUBES
… were also observed. The second method involved electroless plating on activated, oxidized carbon nanotubes. We studied two methods of activation - the two step sensitization/activation procedure and the single step activation procedure. Cu-decorated and Ni-decorated tubes were obtained employing …
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Design and Fabrication of Electrostatically Actuated Serpentine-Hinged Nickel-Phosphorous Micromirror Devices
… their straight-beamed counterparts. An aqueous electroless plating solution composed of nickel acetate, sodium hypophosphite, citric acid, ammonium acetate, and Triton X-100 in was developed for use with the process, and bath operating parameters of 85°C and 4.5 pH were determined. However, this …
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Creating Complex Hollow Metal Geometries Using Additive Manufacturing and Metal Plating
… metal geometries. The developed process uses electroless nickel plating on laser sintered parts that then undergo a flash burnout procedure to remove the polymer, leaving a complex, hollow, metal part. The resulting geometries cannot be produced directly with other additive manufacturing …
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Materials with engineered mesoporosity for programmed mass transport
… then shift of exploration of cation exchange and electroless plating of metals to alter the mesoporous hollow sphere (MHS) materials and properties. The focus of discussion will then shift to the transport of ions into and out of a hierarchically structured gold electrode. Finally, a model …
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Nikelio ir jo lydinių katalizatorių charakterizavimas ir pritaikymas vandens skaldymo reakcijoje /
… Ni80Fe8P12, Ni75Fe12P12—synthesized via electroless plating, this research employs scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDS) for structural and compositional characterization. The electrocatalytic activity was assessed through linear sweep …
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UBM Formation on Single Die/Dice for Flip Chip Applications
… the whole wafers by sputtering, evaporation, or electroless plating. These deposition techniques are not practical for UBM formation on single die/dice, thus preventing Flip Chip technology to be applied in applications where the whole wafers are not available. The process presented in this …
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DNA-Templated Nanomaterials
… metal deposition (a pervasive problem) during electroless plating of DNA with silver or copper. I have designed and constructed discrete three branched DNA junctions as scaffolding for self assembling three terminal, individually gateable nanotransistors. I have labeled these DNA structures …
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Electrochemical energy conversion using metal hydrides hydrogen storage materials
… this, the materials were micro-encapsulated by electroless deposition with immersion in Pd and Pt baths. PGMs were found to increase activation, electrochemical activity and H2 sorption kinetics of the MH alloys. Between the two catalysts the one which displayed better performance was chosen. …
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Development and Evaluation of NI-P-PTFE Based Nano-Composite Coatings for Medical Devices
… and Ni-P-PTFE-ZrO2-TiO2 were developed by electroless plating technique. The assays of bacterial adhesion and removal were conducted on nano-composite Ni-P-PTFE-ZrO2 and Ni-P-PTFE-ZrO2-TiO2 coatings to see whether or not they have the capability of effectively resisting bacterial adhesion …
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