Materials engineering topic list of research papers
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Improved confinement of reinforced concrete columns
Abstract Traditional steel ties reinforcement cannot provide superior confinement for reinforced concrete (RC) columns due to the constraints on tie spacing and disturbance of concrete continuity. This paper presents a practical confinement...
2015 / Ahmed M. El-Kholy, Hany A. Dahish -
Surface Roughness of Poly-crystalline Cubic Boron Nitride after Rotary Ultrasonic Machining
Abstract Rotary ultrasonic machining (RUM) is suitable particularly for machining hard and brittle materials, such as glass and ceramics. This contribution investigates the machining of poly-crystalline cubic boron nitride (PCBN) by using this...
2015 / M. Kuruc, T. Vopát, J. Peterka -
Efficient Voronoi volume estimation for DEM simulations of granular materials under confined conditions
Abstract When the discrete element method (DEM) is used to simulate confined compression of granular materials, the need arises to estimate the void space surrounding each particle with Voronoi polyhedra. This entails recurring Voronoi tessellation...
2015 / Göran Frenning -
Metallic Phase Change Material Thermal Storage for Dish Stirling
Abstract Dish-Stirling systems provide high-efficiency solar-only electrical generation and currently hold the world record at 31.25%. This high efficiency results in a system with a high possibility of meeting the DOE SunShot goal of $0.06/kWh....
2015 / C.E. Andraka, A.M. Kruizenga, B.A. Hernandez-Sanchez, E.N. Coker -
Particle-type Burnable Poisons for Thorium-based Fuel in HTGR
Abstract Thorium-based fuels have been proposed for use as alternative nuclear fuels in a 100-MWt prismatic high temperature gas-cooled reactor (HTGR) to overcome the limitation of natural uranium resources. Safety design features have been...
2015 / Piyatida Trinuruk, Toru Obara -
Shock Wave Structure in Particulate Composites
Abstract An experimental study of shock wave profiles in particulate composites of various compositions is undertaken to determine how shock width and rise times depend on the mean particulate size. The composites under examination serve as a model...
2015 / Michael B. Rauls, Guruswami Ravichandran -
Theoretical energy saving analysis of air conditioning system using heat pipe heat exchanger for Indian climatic zones
Abstract Heat pipe heat exchanger (HPHX) is an excellent device used for heat recovery in air conditioning systems. The Energy Conservation Building Code (ECBC) – Bureau of Energy Efficiency (BEE) India classifies Indian climatic zones into five...
2015 / T.S. Jadhav, M.M. Lele -
Static Recrystallization Kinetics of a Twin-roll Cast AZ31 alloy
Abstract The static recrystallization (SRX) behaviour of twin-roll cast and annealed magnesium AZ31 strip during hot deformation was determined under deformation conditions corresponding to the hot strip rolling process used in the production of...
2015 / M. Ullmann, M. Graf, R. Kawalla -
Flow characteristics and intrinsic workability of IN718 superalloy
Abstract This study focuses on deformation characteristics of superalloy IN718 by formulation of a new flow stress model and detailed evaluation of intrinsic workability through the generation of three-dimensional (3D) processing maps with the...
2015 / Fei Chen, Juan Liu, Hengan Ou, Bin Lu, Zhenshan Cui, et al. -
Paradox of peroxy defects and positive holes in rocks. Part I: Effect of temperature
Abstract Most non-seismic, non-geodesic pre-earthquake phenomena are believed to be controlled by the stress-activation of peroxy defects in rocks, which release highly mobile electric charges. Though ubiquitous in minerals of igneous and high-grade ...
2015 / Friedemann T. Freund, Minoru M. Freund -
Surface Parameters, Tribological Tests and Cutting Performance of Coated HSS Taps
Abstract The paper deals with a study of 2D surface parameters, Coulomb's coefficient of friction and cutting/forming performance of selected PVD coated HSS taps when machining of carbon steel C45 and forming of hardened steel 42CrMo4V. The main...
2015 / Miroslav Piska, Petra Sliwkova -
Asymmetric Material Impact: Achieving Free Surfaces Velocities Nearly Double that of the Projectile
Abstract Hypervelocity impact speeds are often limited by practical considerations in guns and explosive driven systems. In particular, for gas guns (both powder driven and light gas guns), there is the general trend that higher projectile speeds...
2015 / Tariq Aslam, Dana Dattelbaum, Richard Gustavsen, Robert Scharff, Mark Byers -
Neural Cell Response to Nanostructured Biosensor Surfaces
Abstract In our work we investigate the interaction of cells and nanotextured surfaces as a model of implanted device surface and living tissue interaction. We developed a maskless nanostructuring method, which can be integrated into our neural...
2014 / Zs. Bérces, Á. Horváth, A. Jády, A. Pongrácz, E. Madarász, et al. -
Analysis of Dynamic Characteristics for Face Gas Dynamic Seal
Abstract Increasing of aircraft gas turbine engines and power plants efficiency is one of important design problems. One of possible ways of this problem solution is decreasing of leakage through the support seals. Some kinds of seals applied in...
2015 / S.V. Falaleev, A.S. Vinogradov -
Marginal accuracy in casting titanium fixed partial dentures
Abstract Purpose This study evaluated marginal accuracy of cast titanium using three-unit fixed partial denture (FPD). Materials & methods A two-abutment...
2015 / W. Elshahawy -
Microstructure Evolution of K6509 Cobalt-base Superalloy for Over-temperature
Abstract In this study, the K6509 cobalt-base superalloy were heat treated at different temperatures and the microstructure was detected by scanning electrical microscopy and electrical probe micro-analyzer. In as-cast K6509, the MC carbides are...
2015 / Wei Zhen-wei, Zhao Wen-xia, Zhou Jing-yi, Liu Chang-kui, Zheng Zhen, et al. -
First-principle investigations of structural and electronic properties of TMAl (TM = Fe, Co, and Ni) transition metal aluminides2015 / Bendouma Doumi, Allel Mokaddem, Mustapha Ishak-Boushaki, Miloud Boutaleb, Abdelkader Tadjer
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Matrix Biologists in Action2015 /
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Reducing the switching current with a Gilbert damping constant in nanomagnets with perpendicular anisotropy2015 / Keisuke Yamada, Kiyoaki Oomaru, Satoshi Nakamura, Tomonori Sato, Yoshinobu Nakatani
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Dynamic tensile behavior of AZ31B magnesium alloy at ultra-high strain rates
Abstract The samples having {0001} parallel to extruding direction (ED) present a typical true stress–true strain curve with concave-down shape under tension at low strain rate. Ultra-rapid tensile tests were conducted at room temperature on a...
2015 / Changjian Geng, Baolin Wu, Fang Liu, Wenwei Tong, Zhenyu Han