Results 141 to 150 of about 142,570 (304)
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
Mechano-chemical effects on synthesis of ceramic materials and its compositions
, 2005 This paper reviews recent developments on mechano-chemical synthesis of various ceramic materials and compositions (such as oxide ceramics, biomaterial ceramics, electronic and electric intermetallics, microwave dielectric composite, battery compounds ...
Yanmin, Wang, Pan, Z.,
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
CMC MATERIALS AND BIOMORPHIC SiSiC FOR ENERGY APPLICATIONS
, 2008 Ceramic materials offer a high thermal and chemical stability and are therefore potential candidates for high temperature applications in severe environments, where metals can not longer be used. In future energy applications, high process temperatures >
Göring, Jürgen +6 more
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Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
The failure of a tungsten carbide-cobalt cored projectile penetrating a hard target [PDF]
, 2010 Experimental results are presented from an investigation of the parameters of a ceramic-faced armour system that are required to induce damage in a tungsten carbide - cobalt (WC-Co) penetrator.
Woolmore, Nicola J.
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The Effect of Sliding Speed on the Tribological Properties of Ceramic Materials. [PDF]
Materials (Basel), 2023 Alparone GP +4 more
europepmc +1 more source
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion
Advanced Engineering Materials, EarlyView.This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer +4 more
wiley +1 more source
Corrosion resistance of selected ceramic materials to sulfuric acid [PDF]
"The Bureau of Mines is investigating the acid resistance of ceramic materials to identify construction materials for emerging technology in chemical and metallurgical processes.
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