Index Catalog // ScholarsArchive@OSU

Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications

Creator:: Tiwari, Santosh K.
Abstract:: Transient liquid-phase diffusion brazing is used in precision, hermetic joining applications as a replacement for diffusion bonding to reduce cycle times, reduce bonding pressure and improve yields. Studies showed that the interlayer used in diffusion brazing can be detrimental due to the use of melting point depressants (MPDs). The goal...
Resource Type:: Dissertation
Full Text:: titanium to 304 stainless steel,” Journal Nuclear Materials, vol. 322, pp. 152-158. [8] S. Kundu, and

Development of a process for fabricating high-aspect-ratio, meso-scale geometries in stainless steel

Creator:: Walker, Benjamin A.
Abstract:: Miniature energy and chemical systems (MECS) are miniature thermal, fluid, and chemical devices in the mesoscale size range between a sugar cube and a human fist. MECS take advantage of improved rates of mass and heat transfer that have been observed at the microscale. There are many potential applications for...
Resource Type:: Masters Thesis
Full Text:: , meso-scale geometries in stainless steel AN ABSTRACT OF THE THESIS OF Benjamin A. Walker for the

Comparison of two microvalve designs fabricated in mild steel using microprojection welding and capacitive dissociation

Creator:: Terhaar, Tyson J.
Abstract:: Since the dawn of the computer age, there has been a push to create miniature devices. These devices were initially integrated circuit (IC) devices to perform calculations for computers. As the technology progressed, the scope of the devices diverged to included microelectromechanical (MEMS) devices, meaning that the devices perform mechanical...
Resource Type:: Masters Thesis
Full Text:: Comparison of Two Microvalve Designs Fabricated in Mild Steel

Nanoparticle-assisted diffusion brazing of metal microchannel arrays : nanoparticle synthesis, deposition, and characterization

Creator:: Eluri, Ravindranadh T.
Abstract:: Microchannel process technology (MPT) offers several advantages to the field of nanomanufacturing: 1) improved process control over very short time intervals owing to shorter diffusional distances; and 2) reduced reactor size due to high surface area to volume ratios and enhanced heat and mass transfer. The objective of this thesis...
Resource Type:: Dissertation
Full Text:: nanoparticle suspensions for use in the transient liquid-phase brazing of aluminum and stainless steel

Establishing Thermally-Enhanced Edge Registration (TEER) as a feasible alignment technique for metallic microlaminated devices

Creator:: Thomas, Joseph S.
Abstract:: The paper describes a Thermally-Enhanced Edge Registration (TEER) technique for precision aligning large numbers of laminae in diffusion bonding processes. This technique is particularly relevant for the formation of micro heat exchangers and microreactors requiring highly paralleled microchannel arrays but is also being used to register other laminated devices with...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF s Joseph S. Thomas for the degree

Manufacturing Process Design and Electrically-Assisted Embossing of a Microchannel Solar Receiver

Creator:: McNeff, Patrick S.
Abstract:: Manufacturing process design (MPD) represents a design-oriented approach to manufacturing engineering. In this dissertation, Haynes 230 (H230), a solid solution-strengthened Ni-based superalloy, was chosen to meet the material requirements of a microchannel solar receiver (MSR) needed to increase the efficiency and reduce the cost of solar thermal power generation. An...
Resource Type:: Dissertation
Full Text:: ., McNeff, P.S, Brannon, S., O’Halloran, M., The Role of Manufacturing Process Design in Technology

Fabrication of precipitation-hardened aluminum microchannel cooling plates for adsorption-based hydrogen storage systems

Creator:: Pawar, Supriya V.
Abstract:: The need for clean and renewable fuel such as hydrogen is driven by a growing worldwide population and increasing air pollution from fossil fuels. One of the major barriers for the use of hydrogen in automotive industry is the storage of hydrogen. Physisorption is the most promising storage technique due...
Resource Type:: Masters Thesis
Full Text:: ] successfully demonstrated a sub-scale stainless steel MATI showing the ability to remove heat at a rate

Laser keyhole welding for microlaminating a high-temperature microchannel array

Creator:: Lajevardi, Babak
Abstract:: Microchannel process technology (MPT) components are chemical unit operations which exploit highly-parallel arrays of microchannels to process large fluid volumes for portable and distributed applications. Microchannel heat exchangers (MCHXs) have demonstrated 3 to 5 times higher heat fluxes when compared to conventional heat exchangers resulting in proportionate reductions in size...
Resource Type:: Masters Thesis
Full Text:: ....................................... 31 Figure 21: Cross section of a sample processed at 1000W and 800mm/s

Force Prediction in the Compression Sealing of an Ultra-thin Elastoviscoplastic Membrane

Creator:: McNeff, Patrick Scot
Abstract:: The objective of this paper is to demonstrate a method for mechanically characterizing a 25 μm thick elastoviscoplastic hemodialysis membrane and for quantifying the force required to use that membrane in compression sealing. First, methods are developed for mechanically characterizing the thin elastoviscoplastic membrane. Then, a finite element model is...
Resource Type:: Masters Thesis
Full Text:: photochemically- machined in stainless steel. O-rings were used around the periphery of the device for

Development of self-registration features for the assembly of a microchannel hemodialyser

Creator:: Porter, Spencer D.
Abstract:: More than 1.2 million people worldwide require regular hemodialysis therapy to treat end stage renal failure. In the United States alone, there are 300,000 patients and the National Kidney Foundation predicts that this number will double in the next 10 years. Currently most dialysis patients receive treatment at a dialysis...
Resource Type:: Masters Thesis
Full Text:: in the self- registration of stainless steel diffusion-bonded laminae [42]. Both researchers were

ScholarsArchive@OSU

Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications

Development of a process for fabricating high-aspect-ratio, meso-scale geometries in stainless steel

Comparison of two microvalve designs fabricated in mild steel using microprojection welding and capacitive dissociation

Nanoparticle-assisted diffusion brazing of metal microchannel arrays : nanoparticle synthesis, deposition, and characterization

Establishing Thermally-Enhanced Edge Registration (TEER) as a feasible alignment technique for metallic microlaminated devices

Manufacturing Process Design and Electrically-Assisted Embossing of a Microchannel Solar Receiver

Fabrication of precipitation-hardened aluminum microchannel cooling plates for adsorption-based hydrogen storage systems

Laser keyhole welding for microlaminating a high-temperature microchannel array

Force Prediction in the Compression Sealing of an Ultra-thin Elastoviscoplastic Membrane

Development of self-registration features for the assembly of a microchannel hemodialyser

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