Materials Science and Engineering Commons^™

Suitability Of Geoscan-M Elemental Analyser For Phosphate Rock, H. Kurth, Derek Griffiths

Beneficiation of Phosphates VII

No abstract provided.

Smart, Sustainable Development Of Phosphate Resources: The Prospects For Phosphogypsum Utilization And Uranium Recovery, Julian Hilton

Beneficiation of Phosphates VII

No abstract provided.

Environmental Considerations For Treatment Of Effluent Waste Solutions And Solid Waste Products, Larry G. Twidwell

Metallurgy

No abstract provided.

Noise Control By Structure And Material, Brian Tarling

Thinking Matters Symposium Archive

An acoustic impedance testing tube is designed and constructed to test noise absorption properties of selected materials. The structure will be made to be convenient for demonstration purposes and real testing procedures while following ASTM E1050 standards as closely as possible. An engineering drawing as well as a 3D-­‐CAD model of the structure is developed. Testing is conducted on selected materials; mainly ones that will allow obtained results to be compared to results found by other parties. Various sounds will be generated using Mathematical programming; the types of sound will include single frequency, wide band and narrow band noises. Microphones …

New Development In Dihydrate -Hemihydrate Processes: The New Prayon Da-Hf Process, Tibaut Theys

Beneficiation of Phosphates VII

No abstract provided.

An Alternative Flotation Process For Apatite Concentration Of The Itataia Carbonaceous Uranium-Phosphate Ore, Elves Matiolo, Ligia Gonzaga, Ana Luiza Guedes

Beneficiation of Phosphates VII

No abstract provided.

Column Flotation Of Phosphate Ore, Ewan Wingate, Michael Kelahan

Beneficiation of Phosphates VII

No abstract provided.

Who Did What In Solvent Extraction A Demonstrated & Proven Technology For Uranium Recovery From Phosphoric Acid, Vaughn A, Regis Stana

Beneficiation of Phosphates VII

No abstract provided.

Improving Dolomite Collector Forflorida High-Mg Pebble, Chunhui Feng, Wenyi Song

Beneficiation of Phosphates VII

No abstract provided.

Phosphate In Australia, Ewan Wingate, John Dunster

Beneficiation of Phosphates VII

No abstract provided.

Application Of Classification And Fluidized Bed Flotation At Pcs Aurora, George Piegols, David Deplato, Jaisen Kohmuench, Eric Yan

Beneficiation of Phosphates VII

No abstract provided.

Rare Earths And The Recovery Of Administratium From Phosphates, Vaughn Astley

Beneficiation of Phosphates VII

No abstract provided.

Phosphate Beneficiation With Novel Collectors For Direct And Reverse Flotation: Beyond Low Cost Fatty Acids, Pablo Dopico

Beneficiation of Phosphates VII

No abstract provided.

Recovery Of Rare Earths From Florida Phosphogypsum, Patrick Zhang

Beneficiation of Phosphates VII

No abstract provided.

The Use Of A Advanced Process Controls In A Phosphoric Acid Reactor, Vaughn Astley

Beneficiation of Phosphates VII

No abstract provided.

Understanding The Comminution Mechanism Of High-Pressure Grinding Rolls: Lower Cost, Higher Efficiency And Selectivity, Francisco Sotillo

Beneficiation of Phosphates VII

No abstract provided.

Near-Congruent Solidification Of Castings, Kevin J Chaput

Open Access Dissertations

A study on the microstructure development of as-cast Cu-Mn alloys based around the congruent minimum at 34.6 wt % Mn and 873 °C was performed. Initially, this was to evaluate the alloy as an alternative to wide freezing range Pb and Sn bronzes that are plagued with porosity. The shallow minimum and associated narrow freezing ranges around the congruent point result in a completely cellular (non-dendritic) solidification morphology for a composition range ~3 wt % Mn about the congruent composition (C _c). The degree of cellular solidification was found to depend on the mold material. Increased mold conductivity lead …

Investigations Of Carbon Nanotube Catalyst Morphology And Behavior With Transmission Electron Microscopy, Sammy M. Saber

Open Access Dissertations

Carbon nanotubes (CNTs) are materials with significant potential applications due to their desirable mechanical and electronic properties, which can both vary based on their structure. Electronic applications for CNTs are still few and not widely available, mainly due to the difficulty in the control of fabrication. Carbon nanotubes are grown in batches, but despite many years of research from their first discovery in 1991, there are still many unanswered questions regarding how to control the structure of CNTs. This work attempts to bridge some of the gap between question and answer by focusing on the catalyst particle used in common …

Delamination Of C/Pekk I-Beam Using Virtual Crack Closure Technique And Cohesive Zone Method, Greeshma Ramakrishna

Open Access Theses

A damage study is conducted on a carbon epoxy/PEKK (poly-ether-ketone-ketone) thermoplastic composite I-Beam, with a pre crack of 100 mm modeled between the top flange and the filler (butt joint between filler and web). This project is in collaboration with Fokker Aerostructures, Netherlands and is part of the Thermoplastic Primary Aircraft Structure innovation program (TAPAS). The C/PEKK I-Beam is modeled after a section of the Gulfstream G650 aircraft's centre beam, which was previously a carbon fiber/epoxy hat-stiffened skin construction. The objective of the thesis is to identify if the crack propagates in the I-Beam within the load range that act …

Thermodynamic Considerations In Molten Salt Electrolysis For Rare Earth Metals, Arwin Gunawan

Graduate Theses & Non-Theses

Many applications utilize rare earths as a part of their essential composition, such as: Ni-MH batteries, glass screen, magnets, fluorescent lightning, etc. These reactive elements are normally found as an oxide compound due to their affinity with oxygen. Their oxide formation exhibits a high standard free energy, which make them really stable. Consequently, extracting rare earths cannot be easily done with a simple acid-base reaction.

It has been known that there are two reduction ways to extract rare earth, metallothermic reduction and molten salt electrolysis process. Metallothermic method is determined by standard free energy formation, melting point, boiling point, vapor …