Results 141 to 150 of about 11,226 (306)

Formation of NiAl intermetallic compound from powder mixture of nickel and aluminum by laser irradiation [PDF]

Matsumoto R., Komaki S., Homi R., et al. Formation of NiAl intermetallic compound from powder mixture of nickel and aluminum by laser irradiation. Materials Transactions 62, 512 (2021); https://doi.org/10.2320/matertrans.mt-m2020319.NiAl intermetallic ...
Matsumoto, Ryo, Homi, Ryohei, Utsunomiya, Hiroshi, Komaki, Shota   +3 more
core   +1 more source

Electric‐Current‐Induced Phase Transformation in Cu6Sn5 Below Its Equilibrium Transition Temperature

Advanced Science, EarlyView.
Electric current induces a monoclinic‐to‐hexagonal phase transformation in Cu6Sn5 at a measured bulk temperature of ∼120°C, below the equilibrium transition temperature. Ex situ synchrotron x‐ray diffraction, TEM, and matched thermal controls show that current stressing promotes the formation of a retained hexagonal η‐phase post‐stress state not ...
Shih‐kang Lin, Shubhayan Mukherjee, Yu‐chen Liu, Jun Mizuno   +3 more
wiley   +1 more source

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

Advanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li, Minwen Yang, Huangshui Ma, Jie Zheng, Shengqiang Cui, Xiaobo Tan, Xuri Rao, Xiang An, Zongxiang Kan, Siqi Huo, Jing Shuai, Min Hong, Ran Ang   +12 more
wiley   +1 more source

Control of Magnesium Alloy Corrosion through the Use of Engineered Intermetallics [PDF]

, 2014
The low density and high relative strength of Mg alloys means they can offer engineering benefits over steels or Al alloys. However, the susceptibility of Mg alloys to corrosion has limited their exploitation and restricted their use to more benign ...
Pidcock, Andrew
core  

Spike‐Embedded Nanocatalysts via Metal‐Directed Carbonization for Highly Efficient and Robust Semi‐Hydrogenation

Advanced Science, EarlyView.
A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li, Yang Sun, Minghang Li, Wenxuan Zhang, Zhengtao Li, Yihao Ni, Yao Zhang, Yong Wang, Samuel S. Veroneau, Pengfei Ji   +9 more
wiley   +1 more source

Hierarchical Ordering Induced Ultrahigh Cryogenic Strength and Strain Hardening in a Ni2CoFeV Medium‐Entropy Alloy

Advanced Science, EarlyView.
A tri‐phase Ni2CoFeV medium‐entropy alloy with fcc, κ, and L12 phases achieves exceptional cryogenic strength‐ductility synergy at 77 K. It delivers a yield strength of 1.4 GPa, an ultimate tensile strength of 2.07 GPa and a tensile ductility of 28%.
Lei Gu, Wei Jiang, Qingzhong Mao, Xiang Chen, Yonghao Zhao   +4 more
wiley   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

Structurally Complex Precipitates Enhance Strength‐Ductility Synergy in a Duplex Medium Entropy Alloy

Advanced Science, EarlyView.
Strong‐yet‐ductile precipitation‐hardening alloys require novel microstructural complexity of precipitates in particularly at cryogenic condition, to constantly impart strain hardening of hard‐and‐brittle precipitates. The present work creates innovative structurally complex precipitates assembled with dispersed nanocores and a chemical‐heterogeneity ...
Shaohua Gao, Yang Yang, Xiaoxuan Fan, Jinyu Zhang, Shuaiyang Liu, Jiao Li, Hui Wang, Wenli Song, Gang Liu, Jun Sun   +9 more
wiley   +1 more source

Heat Treatment-Induced Microstructure and Property Evolution of Mg/Al Intermetallic Compound Coatings Prepared by Al Electrodeposition on Mg Alloy from Molten Salt Electrolytes. [PDF]

Materials (Basel), 2021
Yao T, Wang K, Yang H, Jiang H, Wei J, Wu W, Liu H, Wang Q, Ding W.   +8 more
europepmc   +1 more source

Dislocation‐Mediated Lattice Distortion and Griffiths Phase Behavior in Melt‐Spun Ni2MnSb Ribbons

Advanced Science, EarlyView.
This figure illustrates how melt‐spinning introduces dislocations into Ni2MnSb Heusler alloys. TEM images reveal local lattice distortions and associated strain fields surrounding dislocations at a representative wheel speed. As wheel speed increases, these distortions promote the formation of ferromagnetic clusters within a paramagnetic matrix ...
Kun Wang, Siying Yu, Qizhong Zhao, Jiale Guo, Minxia Fang, Yichuan Tang, Pengqaing Hu, Yin Zhang, Chao Zhou, Kaiyan Cao, Fanghua Tian, Sen Yang   +11 more
wiley   +1 more source