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Investigation Of The Effects Of As-Cast Microstructure And Temperature On The Response Of Aluminum Alloy 3004 Ingots To Homogenization
By P. N. Anyalebechi
Keywords: Aluminum alloy 3004, Solidification rate, Homogenization, Second phase particles The effects of the fineness of as-solidified cast microstructure and temperature on the response of alumin
Jan 1, 2005
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Depth through Breadth: Addressing the Grand Challenges of Teaching Sustainability
By Svetlana Nikitina
While many question "sustainability" as an intellectual field on the grounds that it is too broad and "undisciplined," we are able to achieve a good balance between breadth of coverage and depth of in
Jan 1, 2010
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Preparation Of MgO With Low CaO Content And High Specific Surface Area From Low-Grade Dolomite
By Xiang-yang Zhou
Keywords: Low-Grade Dolomite, Low CaO Content, High Specific Surface Area, MgO. A low energy consumption preparation technology of magnesium oxide with low calcium oxide content and high specific s
Jan 1, 2005
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Sustainability Study in Selective Laser Sintering ? An Energy Perspective
By Rameshwar Sreenivasan
This paper presents a sustainability analysis of Selective Laser Sintering (SLS) from an energy standpoint. Data of electrical power consumed by the system over an entire build were acquired using a L
Jan 1, 2010
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Characterization of Nanocrystalline CdS:In Thin Films Prepared by the Spray-Pyrolysis Technique
By Shadia J. Ikhmayies
Nanocrystalline CdS:In thin films with particle size in the range (3-36 nm) were produced by the spray pyrolysis technique on glass substrates. The films were characterized by investigating their X-ra
Jan 1, 2010
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Elimination of Crystallinity in Fractured Surface of Medium Carbon Low Alloy Steel Plates Through Process Improvement
By Ram Avtar
High tensile thick plates (>80mm, weight ~3000 Kg) of medium carbon low alloy steel, when heat treated, manifested higher percentage of crystalline area (>20%) in fractured surface. Such problem was n
Jan 1, 2009
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Engagement is an Essential Skill in the 21st Century
By Dirk van Zyl
As part of the North American regional activities during the Mining, Minerals and Sustainable Development Project (MMSD) one project focused on the development of sustainability evaluations at the ope
Jan 1, 2010
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Preparation of Building Material Using Elemental Sulfur and Heavy-metal Containing Slag
By Yanjie Liang
Elemental sulfur and volatilization kiln slag(VKS)containing heavy-metal produced by smelter factories were used to produce sulfured building material. The effects of heating mode, material proportion
Jan 1, 2010
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Toxicity and Resource Depletion Potentials of Light-Emitting Diodes (LEDs)
By Seong- Rin Lim
Light-emitting diodes (LEDs) are regarded as environmentally friendly light sources due to their high energy efficiency and lack of mercury content. LEDs are used for a variety of domestic and commerc
Jan 1, 2010
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Recycling Of Al-MMC In Ionic Liquids At Low Temperature
By V. Kamavaram
Keywords: Recycling, Aluminum Metal Matrix Composite, Ionic Liquids, BMIC Recycling of aluminum metal matrix composites (MMC) via electrolysis in ionic liquids at near room temperature was investig
Jan 1, 2005
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Isotherm and Kinetics Studies of the Biosorption of Cobalt from Aqueous Solutions by Waste Materials
By Yunnen Chen
In the present study, waste materials like pine sawdust and spent grains were investigated to assess their potential for removal of cobalt ion from water by the process of biosorption. The effects of
Jan 1, 2010
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Surface Characterization of Single and Mixed Mineral Systems using Sedimentation Potential
By S. Uddin
An integrated device has been developed to measure sedimentation potential, conductivity and pH simultaneously of particulate systems. Maxwell?s model was used to calculate volume fraction of solid fr
Jan 1, 2010
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Secondary Cooling Technology for Casting of Hypo-Peritectic Steels
By Jian Zhang
From the standpoint of quality, surface cracks normally pose more of a problem than internal cracks. Hypo-peritectic (HP) steel grades are well known for their proneness to surface longitudinal cracki
Jan 1, 2010
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Developments In Peirce-Smith Converting At Inco?s Copper Cliff Smelter During The Last 35 Years
By A. E. M. Warner
At the Copper Cliff Smelter, Inco Limited has extensive experience in converting primary smelting mattes over a broad range of nickel/copper ratios and compositions. In the past 35 years, technology
Jan 1, 2005
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Multi-scale Solidification Model for Laser Engineered Net Shaping (LENS) Process
By Hebi Yin
A two-dimensional multi-scale solidification model was developed to study the heat transfer, fluid flow, and grain growth occurring in the molten pool during the laser engineered net shaping (LENS) pr
Jan 1, 2010
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Using Transmittance Measurements to Investigate the Interdiffusion through the SnO2/CdS and CdS/CdTe interfaces in SnO2/CdS/CdTe Solar Cells
By Shadia J. Ikhmayies
The SnO2/CdS/CdTe thin film solar cells were fabricated on glass substrates by using the spray pyrolysis (SP) technique for the deposition of the SnO2 and CdS layers and vacuum evaporation for the CdT
Jan 1, 2010
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Constant and Pulse Voltage Applications in CaWO4 Reduction
By Orhan Gokce Goksu
It has been shown that metallic tungsten powder can be obtained by electrochemical reduction of solid CaWO4 in molten CaCl2-NaCl eutectic mixture at 600oC. In this study, constant and pulse voltage el
Jan 1, 2010
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Reuse of Fired Red Ceramic Brick Waste
By C. M. F. Vieira
In the county of Campos dos Goytacazes, north of the State of Rio de Janeiro, Brazil, there is a large production of red ceramic, mainly perforated bricks. A percentage of these bricks are damaged dur
Jan 1, 2010
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Preliminary Water Modeling Study Of Fluid Mixing In An AOD Bath Under Conditions Of Side And Top Combined Blowing
By Ji-He Wei
Keywords: stainless steel, AOD refining, side and top combined blowing, mixing characteristics, water modeling The fluid mixing characteristics in the bath during the side and top combined blowing
Jan 1, 2005
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Effect of Normality, Temperature and Time on the Tungsten Losses in the ResidueSeparated from Diluted Scheelite-Slurry-in-NaOH after Digestion
By Raj P. Singh Gaur
Due to high concentration of NaOH in the digested slurry after scheelite digestion, it is diluted to about 4N before filtration to separate sodium tungstate solution from the sludge (residue). Howeve
Jan 1, 2006