Results 1 to 10 of about 2,869,731 (172)

Nanoporous High-Entropy Alloy by Liquid Metal Dealloying [PDF]

Metals, 2020
High-entropy nanomaterials possessing high accessible surface areas have demonstrated outstanding catalytic performance, beating that found for noble metals.
Artem Vladimirovich Okulov, Soo-Hyun Joo, Hyoung Seop Kim, Hidemi Kato, Ilya Vladimirovich Okulov   +4 more
doaj   +8 more sources

Surface Functionalization of Biomedical Ti-6Al-7Nb Alloy by Liquid Metal Dealloying [PDF]

Nanomaterials, 2020
Surface functionalization is an effective approach to change the surface properties of a material to achieve a specific goal such as improving the biocompatibility of the material.
Ilya Vladimirovich Okulov, Soo-Hyun Joo, Artem Vladimirovich Okulov, Alexey Sergeevich Volegov, Bérengère Luthringer, Regine Willumeit-Römer, Laichang Zhang, Lutz Mädler, Jürgen Eckert, Hidemi Kato   +9 more
doaj   +10 more sources

Unusual two-step dealloying mechanism of nanoporous TiVNbMoTa high-entropy alloy during liquid metal dealloying [PDF]

Journal of Materials Research and Technology, 2021
In this study, 3D interconnected nanoporous (3DNP) TiVNbMoTa HEAs were synthesized from the (TiVNbMoTa)25Ni75 as-cast precursor alloy using the liquid metal dealloying (LMD).
Soo-Hyun Joo, I.V. Okulov, H. Kato
doaj   +6 more sources

Development of 3D bicontinuous metal–intermetallic composites through subsequent alloying process after liquid metal dealloying

Journal of Magnesium and Alloys, 2023
This study presents a novel process for the fabrication of metal–intermetallic composites with a 3D bicontinuous structure, achieved through a combination of liquid metal dealloying (LMD) and subsequent alloying.
Jee Eun Jang, Jihye Seong, Soo-Hyun Joo, Sung Hyuk Park   +3 more
doaj   +5 more sources

Ligament morphology and elastic modulus of porous structure formed by liquid metal dealloying

Journal of Materials Research and Technology
We report that the morphology of ligaments also governs the mechanical properties of dealloyed porous materials, in addition to the topology- and size-effects that have been extensively studied previously.
Lijie Zou, Jun-Chao Shao, Hai-Jun Jin
doaj   +5 more sources

Influence of β-Stabilizer Element on Microstructure and Mechanical Behavior of Porous Titanium Alloy Synthesized by Liquid Metal Dealloying. [PDF]

Materials (Basel), 2023
The metallic implant materials for load-bearing applications typically possess a significantly higher stiffness when compared with that of human bone. In some cases, this stiffness mismatch leads to a stress-shielding effect and eventual loosing of the implant. Porous metallic materials are suitable candidates to overcome this problem.
Okulov A, Berger S, Okulov I.
europepmc   +5 more sources

Ultrafine nanoporous intermetallic catalysts by high-temperature liquid metal dealloying for electrochemical hydrogen production [PDF]

Nature Communications, 2022
Nanoscale intermetallic compounds are promising catalysts but the synthesis remains a challenge. The authors develop a dealloying technique to fabricate nanoporous intermetallic electrocatalysts with fine structures for efficient hydrogen production.
Ruirui Song, Jiuhui Han, Masayuki Okugawa, Rodion Belosludov, Takeshi Wada, Jing Jiang, Daixiu Wei, Akira Kudo, Yuan Tian, Mingwei Chen, Hidemi Kato   +10 more
doaj   +5 more sources

Open Porous α + β Titanium Alloy by Liquid Metal Dealloying for Biomedical Applications [PDF]

Metals, 2020
Open porous dendrite-reinforced TiMo alloy was synthesized by liquid metal dealloying of the precursor Ti47.5Mo2.5Cu50 (at.%) alloy in liquid magnesium (Mg).
Stefan Alexander Berger, Ilya Vladimirovich Okulov   +1 more
doaj   +6 more sources

Ti/Mg dissimilar joining by eutectic-melting-induced liquid metal dealloying

Materials & Design
Ti and Mg alloys, which have thermodynamically immiscible main components, have been chemically joined in previous work using a third element with high affinity for both elements.
Yusuke Ohashi, Kota Kurabayashi, Takeshi Wada, Hidemi Kato   +3 more
doaj   +4 more sources

Trace Ru‐Doped PtCuRu@PtRu Core‐Shell Electrocatalyst for CO‐Resilient Methanol Oxidation [PDF]

Advanced Science
To overcome the limited water dissociation capability and transition metal dissolution in Pt‐based binary alloys during methanol oxidation reaction (MOR), a PtCuRu‐0.05@PtRu core‐shell electrocatalyst with trace Ru doping was synthesized via liquid‐phase
Tianrui Xue, Shiyue Xing, Zhongliang Liu, Yiting Song, Jianyi Zhang, Miaomiao Liu, Huihui Li, Chunzhong Li   +7 more
doaj   +2 more sources