Results 71 to 80 of about 2,753,720 (285)

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Effect of ausforming on microstructure and hardness characteristics of bainitic steel

Journal of Materials Research and Technology, 2020
Effects of process parameters of the ausforming such as temperature, strain and strain rate on the martensitic start temperature, kinetics of isothermal bainitic transformation and microstructure refinement of a low carbon carbide-free bainitic steel ...
Theerawat Kumnorkaew, Junhe Lian, Vitoon Uthaisangsuk, Wolfgang Bleck   +3 more
doaj   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +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

On the correlation among isothermal transformation, interphase precipitation behaviour and elements partitioning in Ti–Mo microalloyed steel

Journal of Materials Research and Technology
The correlation among isothermal transformation, interphase precipitation behaviour, and elements partitioning during isothermal heat treatment in a Ti–Mo microalloyed steel were investigated.
Ping He, Haijiang Hu, Wei Wang, Lifan Wang, Guang Xu   +4 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Study on Transformation Mechanism and Kinetics of α’ Martensite in TC4 Alloy Isothermal Aging Process

Crystals, 2020
The law of microstructure evolution and transformation mechanism of the α′ martensite decomposition during 400−600 °C were studied by the isothermal dilatometry.
Hui Yu, Wei Li, Songsong Li, Haibei Zou, Tongguang Zhai, Ligang Liu   +5 more
doaj   +1 more source

Dynamic Evolution of a Quasi-Spherical General Polytropic Magnetofluid with Self-Gravity

, 2008
In various astrophysical contexts, we analyze self-similar behaviours of magnetohydrodynamic (MHD) evolution of a quasi-spherical polytropic magnetized gas under self-gravity with the specific entropy conserved along streamlines.
A. Ori, A. Whitworth, A. Yahil, A.F. Cheng, B. Semelin, C. Hunter, C. Thompson, C. Yu, C. Yu, C.M. Boily, D.A. Small, D.E. McLaughlin, E. Bertschinger, E.N. Parker, F.-Y. Bian, F.H. Shu, F.H. Shu, F.H. Shu, G.I. Barenblatt, H. Bondi, H.-T. Janka, H.A. Bethe, J. Hu, J.C. Tsai, J.E. Gunn, J.F. Hennawi, J.M. Fillmore, J.M. Fillmore, J.M. Lattimer, J.N. Bahcall, K.A. Riper Van, L. Spitzer, L.D. Landau, L.I. Sedov, M. Fatuzzo, M.J. Cai, M.V. Penston, M.V. Penston, P. Bodenheimer, P. Goldreich, R. Courant, R.A. Chevalier, R.B. Larson, R.B. Larson, S. Chandrasekhar, S. Inagaki, S. Terebey, S.A. Balbus, S.A. Balbus, S.D. Zhou, T. Chiueh, T. Hanawa, T. Hanawa, T. Hanawa, W.-G. Wang, W.H. Press, Wei-Gang Wang, Y. Shen, Y. Suto, Y.-Q. Lou, Y.-Q. Lou, Y.-Q. Lou, Y.-Q. Lou, Y.-Q. Lou, Y.-Q. Lou, Y.-Q. Lou, Ya.B. Zel’dovich, Ya.B. Zel’dovich, Ya.B. Zel’dovich, Yu-Qing Lou, Z.H. Fan   +70 more
core   +1 more source

A Lysozyme Concentration, pH, and Time-Dependent Isothermal Transformation Diagram Reveals Fibrous Amyloid and Non-Fibrous, Amorphous Aggregate Species

, 2014
Deposition of aggregated protein is associated with many human diseases. The mechanism by which protein aggregate species cause cellular death remains unclear.
Lisa C. Burnett, Benjamin J. Burnett, Bin Li, S. Durrance, Shaohua Xu   +4 more
semanticscholar   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source