Results 91 to 100 of about 2,996,627 (339)

W‐Based Thin Film Metallic Glasses Doped with Ni, Zr, and B for Industrial Applications

Advanced Engineering Materials, EarlyView.
This work is the first to deal with a comprehensive comparison of two metallic glass systems, W–Zr–B and W–Ni–B, in terms of their suitability for specific industrial applications. Their mechanical and tribological properties are compared and discussed in combination with structural homogeneity on different types of technically relevant substrates and ...
Zbynek Studeny, Antonin Kubicek, Vjaceslav Sochora, Zdenek Pokorny, Stanislava Debnárová, Pavel Soucek   +5 more
wiley   +1 more source

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych, Chongchong Tang, Carsten Schroer, Björn Schäfer, Judith Jung, Michael Dürrschnabel, Ute Jäntsch, Bronislava Gorr   +7 more
wiley   +1 more source

Sequential decarboxylative azide–alkyne cycloaddition and dehydrogenative coupling reactions: one-pot synthesis of polycyclic fused triazoles

Beilstein Journal of Organic Chemistry, 2014
Herein, we describe a one-pot protocol for the synthesis of a novel series of polycyclic triazole derivatives. Transition metal-catalyzed decarboxylative CuAAC and dehydrogenative cross coupling reactions are combined in a single flask and achieved good ...
Kuppusamy Bharathimohan, Thanasekaran Ponpandian, A. Jafar Ahamed, Nattamai Bhuvanesh   +3 more
doaj   +1 more source

Ray tracing program with options for diffraction gratings [PDF]

, 1971
Diffraction theory, developed in vectorial form and coded into ray tracing routines, permits tracing rays of any wavelength through surfaces that are plane, spherical, conical, or aspheric polynomial.
Howell, B. J.
core   +1 more source

Characterization of high-quality MgB2(0001) epitaxial films on Mg(0001)

, 2005
High-grade MgB2(0001) films were grown on Mg(0001) by means of ultra-high-vacuum molecular beam epitaxy. Low energy electron diffraction and x-ray diffraction data indicate that thick films are formed by epitaxially oriented grains with MgB2 bulk ...
, Andrea Goldoni, Antropov V P, Cinzia Cepek, Golubov A A, Hellsing B, Lee S, Luca Petaccia, Macovez R, Massimo Sancrotti, Mattevi C, Roberto Macovez, Rosanna Larciprete, Silvano Lizzit   +13 more
core   +1 more source

CeO2 Nanostructures Prepared by Selective Water‐Soluble Sr3Al2O6(SAO)‐CeO2 Vertically Aligned Nanocomposite

Advanced Engineering Materials, EarlyView.
Highly textured CeO2 nanowires and nanoporous thin films are successfully synthesized by water dissolution of Sr3Al2O6 (SAO) from the SAO:CeO2 vertically aligned nanocomposites (VANs). The morphology of CeO2 can be varied by VAN composition. It demonstrates a new method for synthesizing nanostructured CeO2 without chemical etching or complex micro ...
Benson Kunhung Tsai, Jialong Huang, Jianan Shen, Yizhi Zhang, James P. Barnard, Claire A. Mihalko, Abhijeet Choudhury, Shiyu Zhou, Haiyan Wang   +8 more
wiley   +1 more source

Unexpected Tellurohalogenation of Terminal N‐Alkynyl (Alkenyl) Derivatives of 4‐Functionalized Pyrazoles

ChemistryOpen
The efficient synthesis of terminal N‐alkenyl and N‐alkynyl derivatives of pyrazole‐4‐carboxylic acids and their methyl esters as substrates for studying electrophilic heterocyclization has been reported.
Marianna V. Povidaichyk, Svitlana V. Shishkina, Eugeniy M. Ostapchuk, Prof. Mykhaylo Yu. Onysko   +3 more
doaj   +1 more source

High-Temperature X–ray Diffraction Studies of Al–Ni–Hf Ternary Alloys

Фізика і хімія твердого тіла, 2018
Phase content and temperature dependences of cell parameters for intermetallics HfNi2Al5, Hf6Ni8Al15 and Ni2Al3, existed in Al-Ni-Hf ternary system have been studied by means of X-ray diffraction method.
O. V. Shved, S. I. Mudry, Yu. O. Kulyk
doaj   +1 more source

Optimized Strategy for Fabricating High‐Aspect‐Ratio Periodic Structures Over Large Areas Using ps‐Direct Laser Interference Patterning

Advanced Engineering Materials, EarlyView.
Picosecond direct laser interference patterning (DLIP) enables precise microstructure fabrication on stainless steel. Using a multiscan approach, high‐aspect‐ratio patterns are achieved. Fluence influences structure growth and homogeneity, with smaller periods yielding better uniformity.
Fabian Ränke, Marcelo Sallese, Marcos Soldera, Ignacio Tabares, Flavio Soldera, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source