Results 61 to 70 of about 11,922,923 (269)

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji, Natasha Sacks, Johannes Pötschke, Björn Matthey   +3 more
wiley   +1 more source

Rubidium tetrafluoridobromate(III): redetermination of the crystal structure from single-crystal X-ray diffraction data

IUCrData, 2019
Single crystals of rubidium tetrafluoridobromate(III), RbBrF4, were grown by melting and recrystallizing RbBrF4 from its melt. This is the first determination of the crystal structure of RbBrF4 using single-crystal X-ray diffraction data.
Artem V. Malin, Sergei I. Ivlev, Roman V. Ostvald, Florian Kraus   +3 more
doaj   +1 more source

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

Advanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

Combined experimental powder X-ray diffraction and DFT data to obtain the lowest energy molecular conformation of friedelin

Química Nova, 2012
Friedelin molecular conformers were obtained by Density Functional Theory (DFT) and by ab initio structure determination from powder X-ray diffraction. Their conformers with the five rings in chair-chair-chair-boat-boat, and with all rings in chair, are ...
Djalma Menezes de Oliveira, Wagner da Nova Mussel, Lucienir Pains Duarte, Grácia Divina de Fátima Silva, Hélio Anderson Duarte, Elionai Cassiana de Lima Gomes, Luciana Guimarães, Sidney A. Vieira Filho   +7 more
doaj   +1 more source

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

Advanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk, Elisabeth Keck, Alberto López‐Grande, Delia S. Brauer, Tobias Fey   +4 more
wiley   +1 more source

ON THE X-RAY DIFFRACTION ON PARATELLURITE SINGLE CRYSTAL SURFACES

Scientific Herald of Uzhhorod University.Series Physics, 2007
Проведено рентгенодифрактометричні дослідження поверхонь монокристалів парателуриту при різних величинах порушеного приповерхневого шару, спри­чинених технологічними етапами механічної обробки. Отримано залежності дифракційного відбивання при скануванні Θ/2Θ методом і методом гойдання. Виявлено, що запропонованими методами можна проводити оцінку якості
openaire   +3 more sources

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

Advanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner, Anna Sophie Jelinek, Velislava Terziyska, Peter Wagatha, Wolfram Knabl, Christian Mitterer, Helmut Clemens, David Holec   +7 more
wiley   +1 more source

Mechanochemical Synthesis, Spectroscopic Characterization and Molecular Structure of Piperidine–Phenytoin Salt

Organics
Phenytoin is an anticonvulsant drug that suffers from low aqueous solubility. The formation of phenytoin salts is a strategy employed to address this issue.
María Isabel Amil-Miranda, Armando Pineda-Contreras, Francisco Javier Martínez-Martínez, Marcos Flores-Álamo, Hector García-Ortega, Juan Saulo González-González   +5 more
doaj   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Efficient methods of X-ray diffraction pattern inversion

Results in Physics, 2019
An innovative, computational approach to the problem of X-ray diffraction pattern inversion is presented. The technique approximates the electron density of the trial structures encountered during the structure-fitting part of the inversion process with ...
Ian Gregory Shuttleworth
doaj   +1 more source