Results 211 to 220 of about 2,532 (257)

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

MOCVD‐Grown MoS2 Wafers as a Transfer‐Free Platform for Top‐Gate Devices via Dry Interface Engineering

Advanced Materials, EarlyView.
We reveal the electronic origin of hidden interfacial doping in monolayer MoS2 grown by MOCVD, identifying sulfate related and water like species as intrinsic donors. Through dry interface engineering approach, we demonstrate MOCVD‐grown single‐crystal MoS2 wafers as a transfer‐free platform for the reliable evaluation of intrinsic gate stacks and ...
Shuhong Li, Juiteng Chang, Keisuke Atsumi, Kosei Matsumoto, Itsuki Tanaka, Tomonori Nishimura, Kaito Kanahashi, Takahiro Nagata, Jun Nara, Yoshiki Sakuma, Emi Kano, Nobuyuki Ikarashi, Kosuke Nagashio   +12 more
wiley   +1 more source

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Bifunctional nanoprecipitates strengthen and ductilize a medium-entropy alloy

Nature, 2021
Single-phase high- and medium-entropy alloys with face-centred cubic (fcc) structure can exhibit high tensile ductility1,2 and excellent toughness2,3, but their room-temperature strengths are low1-3. Dislocation obstacles such as grain boundaries4, twin boundaries5, solute atoms6 and precipitates7-9 can increase strength.
Ying Yang, Tianyi Chen, Lizhen Tan, Jonathan D. Poplawsky, Ke An, Yanli Wang, German D. Samolyuk, Ken Littrell, Andrew R. Lupini, Albina Borisevich, Easo P. George   +10 more
openaire   +2 more sources

Development of composite high entropy-medium entropy alloy coating

Scripta Materialia, 2023
The viability of adapting HEAs or MEAs with single-phase structures, such as either FCC or BCC phases, for industrial applications is challenging due to the trade-offs in properties between different phases. Therefore, a novel high entropy alloy-medium entropy alloy composite coating based on a hard metal concept was designed using a CALPHAD approach ...
Meghwal, Ashok, Singh, Surinder, Sridar, Soumya, Xiong, Wei, Hall, Colin, Munroe, Paul, Berndt, Christopher C., Ang, Andrew Siao Ming   +7 more
openaire   +2 more sources

Deformation twinning in Ti48.9Zr32.0Nb12.6Ta6.5 medium entropy alloy

Materials Science and Engineering: A, 2021
Abstract The {112} β deformation twinning has never been confirmed in refractory high or medium entropy alloys (HEAs or MEAs) at room temperature. Here a Ti48.9Zr32.0Nb12.6Ta6.5 MEA shows {112} β twins was designed based on the d-electron alloy design method learned from β Ti alloys.
Xianbing Zhang, Weilin Wang, Jialin Wu, Shubin Wang, Jian Sun, Jing Yang Chung, Stephen J. Pennycook   +6 more
openaire   +1 more source

Martensitic Transformation of High-Entropy and Medium-Entropy Shape Memory Alloys

Materials Science Forum, 2021
As new generation of high-temperature shape memory alloys, high-entropy alloys (HEAs) have been attracted for strong solid-solution hardened alloys due to their severe lattice distortion and sluggish diffusion. TiPd is the one potential high-temperature shape memory alloys because of its high martensitic transformation temperature above 500 °C.
Hiromichi Matsuda, Masayuki Shimojo, Hideyuki Murakami, Yoko Yamabe-Mitarai   +3 more
openaire   +1 more source

Microstructural Characterization of Medium Entropy Alloy Thin Films

SSRN Electronic Journal, 2019
This study presents detailed microstructural investigations on single and bilayer thin films of two medium entropy alloys (MEAs) synthesized using magnetron sputter deposition. Single layer thin films of CoCrFeNi and AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of
Chawake, N.Zalesak, J.Gammer, Ch.Franz, R.Cordill, M.Kim, J.Eckert, J.   +7 more
openaire   +1 more source

Kinking in a refractory TiZrHfNb0.7 medium-entropy alloy

Materials Letters, 2020
Abstract As a type of cooperative deformation like twinning, kinking can improve the deformability of materials by stress relaxation and crystal reorientation. In this work, kinking with 〈0 1 1〉 lattice rotation axis was identified in a refractory TiZrHfNb0.7 medium-entropy alloy (MEA).
Shubin Wang, Mingxu Wu, Da Shu, Baode Sun   +3 more
openaire   +1 more source

High-temperature oxidation behaviour of low-entropy alloy to medium- and high-entropy alloys

Journal of Thermal Analysis and Calorimetry, 2018
The high-temperature oxidation behaviour of CoCrNi, CoCrNiMn, and CoCrNiMnFe equimolar alloys was investigated. All three alloys have a single-phase face-centred cubic structure. Thermogravimetric analyses (TGA) were conducted at temperatures ranging from 800 to 1000 °C for 24 h in dry air.
Nana Kwabena Adomako, Jeoung Han Kim, Yong Taek Hyun   +2 more
openaire   +1 more source

Design of high-ductile medium entropy alloys for dental implants

Materials Science and Engineering: C, 2020
Developing new materials with high strength and ductility, low modulus and high biocompatibility is a continuing demand in the field of surgical implants. Inspired by the high-entropy design philosophy, two medium entropy alloys (MEAs), i.e. equiatomic TiZrHf and equi-weight Ti40Zr20Hf10Nb20Ta10 were designed and their mechanical properties and ...
Shubin, Wang, Dongle, Wu, Huan, She, Mingxu, Wu, Da, Shu, Anping, Dong, Hongchang, Lai, Baode, Sun   +7 more
openaire   +2 more sources