Results 81 to 90 of about 1,433 (305)

Boron beats nitrogen: strained boron–boron bonds as (molecular) proton sponges

Physical Chemistry Chemical Physics
The basicity and the hydrogen bond (HB) acceptor capability of diborane derivatives of dipyrazole 1 with a B–B bond have been studied theoretically using M06-2x and CCSD(T) methods. The proton affinities of 1b reach 1096 kJ mol−1.
Ibon Alkorta, José Elguero, M. Merced Montero-Campillo, Otilia Mó, Manuel Yáñez   +4 more
openaire   +2 more sources

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

Advanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse, Yudai Kaneko, Ryohei Fujita, Tatsuhiro Horii, Daishi Shiojiri, Yuta Ozawa, Kyohei Nagatake, Tamami Takano, Yutaka Isoda, Aoi Koishikawa, Takashi Goto, Ai Ueno, Shoji Maruo, Kazuhide Ueno, Toshinori Fujie, Hosei Nagano, Hiroki Ota   +16 more
wiley   +1 more source

Effect of Post-Aging on Laser-Boronized Surface of 18Ni-300 Maraging Steel with Hypoeutectic Structure

Lubricants
Laser-boronized parts manufactured by a selective laser melting process from 18Ni to 300 maraging steel are investigated in this study. Two main issues are addressed, namely (i) the possibility to restore the hardness of the heat-affected zone (HAZ ...
Jelena Škamat, Olegas Černašėjus, Kęstutis Bučelis, Oleksandr Kapustynskyi   +3 more
doaj   +1 more source

Surface treatments for nickel and nickel-base alloys [PDF]

Surface treatments of nickel and nickel alloys by diffusion coating, electroplating, explosive hardening, peening, and other ...
Hall, A. M., Jackson, C. M.
core   +1 more source

Corrosion behavior of boride diffusion layer on CoCrMo alloy surface [PDF]

, 2020
87-95In the present study, the corrosion behaviour of CoCrMo ASTM F75 alloy with boride diffusion layer and under simulated physiological conditions has been investigated using electrochemical methods.
Arguelles-Ojeda, José Luis, Corona-Rivera, Miguel Angel, Moreno-Palmerin, Joel, Márquez-Herrera, Alfredo, Saldaña-Robles, Alberto, Zapata-Torres, Martin   +5 more
core  

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

Advanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee, Sofía Cruces, Xiaohua Liu, Yang Chen, Vasilis A. Maroufidis, Janghyun Jo, Lukas Völkel, Dennis Braun, Michael Möller, Leon Brackmann, Holger Kalisch, Michael Heuken, Andrei Vescan, Rafal E. Dunin‐Borkowski, Joachim Mayer, Stefan Wiefels, Max C. Lemme   +16 more
wiley   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Preparation and properties of Mo2NiB2 based cermets

工程科学学报, 2015
Mo2NiB2 based cermets were prepared using element powders of boride, nickel and molybdenum. The phase transformation and dimensional change in the sintering stage as well as the effects of sintering temperature and holding time on the mechanical ...
YI Shan-jie, YIN Hai-qing, YIN Xiao-long, QU Xuan-hui, ZHENG Qingjun   +4 more
doaj   +1 more source

Harnessing the Orientation of Columnar Discotic Liquid Crystals for Narrowband Blue Emission with Enhanced Out‐Coupling Efficiency Toward Improvement of SP‐OLEDs Performance

Advanced Functional Materials, EarlyView.
Solution‐processed OLEDs containing discotic liquid‐crystalline MR‐TADF emitters are reported. Supramolecular self‐assembly induces homeotropic columnar alignment, enforcing preferential horizontal orientation of the emitter transition dipole moment in spin‐coated films, which leads to an enhancement in the device light outcoupling efficiency while ...
Joydip De, Abhishek Kumar Gupta, Džiugas Litvinas, Francisco Tenopala‐Carmona, Matthias Lehmann, Malte C. Gather, Eli Zysman‐Colman   +6 more
wiley   +1 more source

SURFACE HARDENING OF TUNGSTEN-BASED HEAVY ALLOY VIA PACK BORONIZING

Iranian Journal of Materials Science and Engineering, 2017
The boronizing of a tungsten heavy alloy containing Ni and Fe as the major alloying elements were performed in the present study to increase its surface hardening.
A. Ataei, M. Jalaly, M. Tamizifar
doaj