Results 51 to 60 of about 54,360 (311)

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Wetting and energetics in nanoparticle etching of graphene

, 2010
Molten metallic nanoparticles have recently been used to construct graphene nanostructures with crystallographic edges. The mechanism by which this happens, however, remains unclear.
Eustathopoulos N., Lide D. R., Naidich Y. V., Parker E. R., Sujit S. Datta, Sutherland W., Thomas J. M., Tinklepaugh J. R.   +7 more
core   +1 more source

Argentinean copper concentrates: structural aspects and thermal behaviour [PDF]

, 2013
In Argentina, there are many sources of copper concentrates. Some of them are currently in operation, while others are in the exploration stage. All copper concentrates produced are exported to other countries for copper refinement and to create various ...
Bazan Brizuela, Vanesa Lucia, Brandaleze, Elena, Santini, Leandro Matias, Sarquis, Pedro Edgardo   +3 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Reactivity of Carbon Based Materials for Powder Metallurgy Parts and Hard Metal Powders Manufacturing

Journal of the Japan Society of Powder and Powder Metallurgy, 2016
Carbon is a key element for powder metallurgy. For example, carbon is the basic alloying element in PM sintered steel, and carbon powders are used as a carbon source for the production of hard metals. However, there are only a few studies about the mechanisms of carbon dissolution and reactivity in dependence on the carbon sources with solid metals ...
Raffaele GILARDI, Luigi ALZATI, Raquel ORO, Eduard HRYHA, Lars NYBORG, Sigurd BERG, Luigi RADICCHI   +6 more
openaire   +2 more sources

Porous Titanium for Biomedical Applications: Evaluation of the Conventional Powder Metallurgy Frontier and Space-Holder Technique [PDF]

, 2019
Titanium and its alloys are reference materials in biomedical applications because of their desirable properties. However, one of the most important concerns in long-term prostheses is bone resorption as a result of the stress-shielding phenomena ...
Arévalo Mora, Cristina María, Lascano, Sheila, Montealegre-Meléndez, Isabel, Muñoz Moreno, Sergio, Rodríguez-Ortiz, José Antonio, Torres Hernández, Yadir, Torres Hernández, Yadir (Coordinador), Trueba Muñoz, Paloma   +7 more
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Dislocation-twin-precipitate synergy imparts 2.3 GPa yield strength and 18.2% ductility in MPEA at 77 K

Materials Research Letters
Achieving an exceptional strength-ductility synergy is essential for cryogenic structural materials. However, ultrahigh-strength alloys frequently suffer from limited ductility, which restricts ductility.
Guidong Chen, Fei Liu, Yuanbiao Tan, Hao Fu, Wei Shi, Siyuan Wei, Upadrasta Ramamurty, Song Xiang   +7 more
doaj   +1 more source

The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites

Metals, 2023
The aim of this work was to propose a simple method for synthesizing differently shaped AgNPs and to find a suitable stabilizing/capping agent to ensure the non-toxicity of AgNPs. Using a chemical method, by simply changing the volume of reducing agents,
Oksana Velgosova, Lívia Mačák, Vladimír Mára, Erika Múdra, Marek Vojtko, Maksym Lisnichuk, Elena Čižmárová   +6 more
doaj   +1 more source

Niobium based intermetallics as a source of high-current/high-magnetic field superconductors

, 2001
The article is focused on low temperature intermetallic A15 superconducting wires development for Nuclear Magnetic Resonance, NMR, and Nuclear Magnetic Imaging, MRI, magnets and also on cryogen-free magnets.
B.A. Glowacki, Chen, D. Fray, Dukhovnii, Evetts, G. Chen, Glowacki, Glowacki, Hillman, Itoh, Kikuchi, Kosuge, Kosuge, M. Majoros, Matsumoto, Matthias, Osborne, Pickus, Pippard, Scanlan, Takeuchi, Takeuchi, Takeuchi, Tchikawa, Thieme, Togano, Togano, Wilson, Wordenweber, X.-Y. Yan, Y. Shi, Yamada   +31 more
core   +1 more source