Results 31 to 40 of about 11,117 (260)

ELECTRICAL CONDUCTIVITY OF BORATE-BARIUM GLASS C78-5 IN THE EDUCATION AND GROWTH OF NANOCRYSTALS [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
The temperature dependence and kinetics of changes in the electrical conductivity at a constant temperature annealing of borate-barium glass C78-5 is investigated experimentally. The values of the activation energy of electrical conductivity in different
A.M. Karmokov, Z.V. Shomakhov, O.A. Molokanov   +2 more
doaj  

Rapid isothermal annealing of As-, P-, and B-implanted silicon [PDF]

Journal of Applied Physics, 1984
Single-crystal silicon wafers have been implanted with As, P, and B to doses of 1×1013–1×1016/cm2 and given a transient anneal using a Varian IA-200 Rapid Isothermal Annealer. The system uses infrared radiation to heat the wafers to temperatures in excess of 1000 °C for times on the order of 10 sec. Sheet resistance and Hall measurements have been used
S. R. Wilson, W. M. Paulson, R. B. Gregory, A. H. Hamdi, F. D. McDaniel   +4 more
openaire   +1 more source

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, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

The effect of some heat treatments on the properties of medium carbon steel

Tikrit Journal of Engineering Sciences, 2005
The present study is aimed to compare between the effect of the modified isothermal annealing with conventional full annealing and normalizing on the properties of medium carbon steel by full annealing and normalizing tensile test and otherdisclike shape
Jawdat Ali Yaqub, Ihsan Fadhel Abas, Najat Najmaldeen Hamed   +2 more
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Effect of stress-relief annealing on isothermal fatigue life of a new hot stamping die steel 4Cr2Mo2V

Materials Research Express, 2022
For 4Cr2Mo2V hot stamping die steel, the isothermal fatigue test was suspended at different cycles, and the stress-relief annealing was carried out in situ . After annealing, the fatigue tests were continued.
Bin Jiang, Xiaocheng Li, Pengpeng Zuo, Xiaochun Wu   +3 more
doaj   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Modeling static recrystallization during non-isothermal heating in biomedical Mg-1Zn-0.2Ca magnesium alloy based on isothermal kinetic data

Results in Engineering
A novel analytical model is proposed to predict the kinetics of static recrystallization (SRX) during non-isothermal annealing, based on isothermal experimental data.
Seyed Amir Razavi, Negar Mirabdolazimi, Ramin Ebrahimi   +2 more
doaj   +1 more source

The Effect of Stepped Austempering on Phase Composition and Mechanical Properties of Nanostructured X37CrMoV5-1 Steel

Archives of Metallurgy and Materials, 2015
This paper presents the results of studies of X37CrMoV5-1 steel subjected to quenching processes with a one-step and a two-step isothermal annealing. The TEM observation revealed that steel after one-step treatment led is composed of carbide-free bainite
Marciniak S., Skołek E., Świątnicki W.   +2 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source