Results 81 to 90 of about 12,185,430 (320)

Influence of cryogenic treatment on mechanical properties of cemented carbides [PDF]

, 2016
Cemented carbides, often referred to as hardmetals, are materials composed by two major phases: a carbide ceramic phase and a binder metallic one. The metallic binder maintains the ceramic grains together in an interpenetrated network structure.
Senah, Chloe
core   +1 more source

Chiral Nanohoops as an Efficient Spin Polarization System

Advanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta, Philipp Seitz, Mathias Hermann, Birgit Esser, Ron Naaman   +4 more
wiley   +1 more source

Cryogenic Treatment of Carbide-free Bainite Steel After Carburizing

Cailiao gongcheng, 2017
The cryogenic treatment (CT) process of carbide-free bainite steel after carburizing was optimized by the method combining thermal magnetic analysis, microhardness analysis and direct reading spectrometric analysis.
SUN Shi-qing
doaj   +1 more source

An Ionic Gelation Powder for Ultrafast Hemostasis and Accelerated Wound Healing

Advanced Functional Materials, EarlyView.
An ultrafast ionic gelation‐activated hemostatic powder (AGCL) forms a hydrogel within ≈1 s upon contact with blood‐derived calcium ions. The AGCL powder enables rapid hemorrhage control, strong tissue adhesion, and enhanced healing. The powder's pre‐crosslinked polymer network ensures high blood uptake and stability, offering effective treatment for ...
Youngju Son, Kyusoon Pak, Taehoon Lee, Monica Celine Prayogo, Jinyoung Choi, Sukkyung Kang, Minjoo Kang, Byungkook Oh, Sang Yu Sun, Sanha Kim, Sung Gap Im, Sangyong Jon, Steve Park   +12 more
wiley   +1 more source

Optimization and analysis of cutting parameters using cryogenic media in machining of high strength alloy steel [PDF]

, 2013
In this research, liquid Argon is used as a cryogenic media to optimize the cutting parameters for evaluation of tool flank wear width of Tungsten Carbide Insert (CNMG 120404-WF 4215) while turning high strength alloy steel.
Ali, Liaqat, Butt, Shahid, Jaffery, Husain, Jaffery, Mehdi, Khan, Mushtaq, Tahir, Waseem   +5 more
core  

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

Advanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang, Zhenbin Wang, Mirjana Dimitrievska, Miloš Baljozović, Yongping Gan, Pardis Adams, Sanghyun Bae, Thomas Moehl, Wenzhe Niu, Xiang jiu Guan, S. David Tilley   +10 more
wiley   +1 more source

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source

Effect of Deep Cryogenic Activated Treatment on Hemp Stem-Derived Carbon Used as Anode for Lithium-Ion Batteries

Nanoscale Research Letters, 2020
The cryogenic process has been widely applied in various fields, but it has rarely been reported in the preparation of anode materials for lithium-ion battery.
Zhigang Li, Zhongxiang Guan, Zhiping Guan, Ce Liang, Kaifeng Yu   +4 more
doaj   +1 more source

Deterministic hBN Bubbles as a Versatile Platform for Studies on Single‐Photon Emitters

Advanced Functional Materials, EarlyView.
Single‐photon emitters (SPEs) in hBN are promising for quantum technologies; however, in exfoliated samples their activation is required, limiting reproducibility of previous studies. This work introduces a large‐area MOVPE‐grown hBN platform that hosts SPEs without prior activation.
Piotr Tatarczak, Tomasz Fąs, Jan Pawłowski, Aleksandra Krystyna Dąbrowska, Jan Suffczyński, Mateusz Tokarczyk, Piotr Wróbel, Andrzej Wysmołek, Johannes Binder   +8 more
wiley   +1 more source

Effects of deep cryogenic treatment on WC-Co cutter performances in milling of superalloy GH536

Advances in Mechanical Engineering, 2020
GH536 has been widely employed as one kind of high-performance materials; however, the poor machinability of GH536 especially substantial tool wear can still be considered as a problem.
Dong Liu, Li Gao, Peng Zhou
doaj   +1 more source