Results 91 to 100 of about 67,798 (255)

Effects Analysis on the Mechanical Properties of Nanocrystalline Materials

, 2002
Nanocrystalline materials are characterized by a typical grain size from 1 to 100nm. In order to study the nanocrystalline properties of nanocrystalline materials, we chose nanocrystalline coppers as the research object.
Liu YW(刘曰武), Lv SQ(吕守芹), Zhou R(周蓉)   +2 more
core   +2 more sources

Ductile B2 Intermetallics‐Driven Strength‐Ductility Synergy in Heterolaminated Multi‐Principal Element Alloys

Advanced Science, EarlyView.
Intrinsic phase toughening transforms a brittle B2 intermetallic into a plastically deformable, load‐bearing phase, while a heterogeneous laminated architecture suppresses strain localization and interface cracking. The synergy between ductile intermetallics and mesoscale heterogeneity establishes a general design strategy for breaking the long ...
Lu Yang, Feilong Jiang, Qiming Zhuang, Dingshan Liang, Jiasi Luo, Kangjie Chu, Junhua Luan, Zengbao Jiao, Robert O. Ritchie, Fuzeng Ren   +9 more
wiley   +1 more source

Self‐Assembly of Organic–Inorganic Copolymers Toward Bio‐Inspired Cementitious Composites

Advanced Science, EarlyView.
Organic–inorganic copolymerization of calcium silicate hydrate and thioctic acid produces a self‐organized nanocomposite inspired by the disordered collagen–mineral architecture of trabecular bone. The resulting material combines a compressive strength above 300 MPa with intrinsic physical reprocessibility, retaining over 80% of its strength and energy
Zonglin Xie, Suning Li, Fuwen Zhong, Gongkun Xiang, Mustapha Jamaa Garba, Yi Tian, Jun Wu, Zhiwu Yu, Qiang Yuan   +8 more
wiley   +1 more source

Electrocatalytic CO2 Reduction over Sn‐Cu Bimetallic Catalysts Synthesized via an Amalgamated Lithium Metal Method

Advanced Science, EarlyView.
An amalgamated lithium metal method enables systematic control of Sn–Cu active‐site dimensions from isolated atoms to nanocrystallites. Increasing the metal loading shifts CO2 electroreduction selectivity from acetaldehyde on highly dispersed Sn–Cu sites to formate on Sn‐rich crystallites, revealing how bimetallic dispersion and local coordination ...
Minghao Xie, Shichen Guo, Jianxin Wang, Haozhe Zhang, Xun Zhan, Lauren Valentino, Di‐Jia Liu   +6 more
wiley   +1 more source

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

Advanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou, Lingxiang Guo, Bing Liu, Ziyi Yi, Yuyu Zhang, Jia Sun, Qiangang Fu   +6 more
wiley   +1 more source

Internal Friction Of Bend-Deformed Nanocrystalline Nickel By Mechanical Spectroscopy

, 2008
Internal friction of nanocrystalline nickel is investigated by mechanical spectroscopy from 360 K to 120 K. Two relaxation peaks are found when nanocrystalline nickel is bent up to 10% strain at room temperature and fast cooling. However, these two peaks
Li PY, Meng XK, 张喜燕, Huang YN, 武晓雷   +4 more
core   +2 more sources

Simulation Study of the Small-Signal Characteristics of Single-Phase Common-Mode Inductors with Capacitance Cancellation

Applied Sciences
This article proposes a simulation model of single-phase common-mode inductors to evaluate the small-signal characteristic of common-mode inductors when the stray capacitance cancellation method is applied.
Shotaro Takahashi
doaj   +1 more source

Biomimetic nanocrystalline apatites: Emerging perspectives in cancer diagnosis and treatment [PDF]

, 2012
Nanocrystalline calcium phosphate apatites constitute the mineral part of hard tissues, and the synthesis of biomimetic analogs is now wellmastered at the labscale.
Cédric Charvillat, Jeannette Dexpert-Ghys, Girod Fullana, Sophie, Dufour, Pascal, Charvillat, Cédric, Bernard Pipy, Pascal Dufour, José Bernad, Bordère, Julie, Ternet -Fontebasso, Hélène, Santran, Véronique, Drouet, Christophe, Dexpert-Ghys, Jeannette, Bernad, José, Ternet, Hélène, Christophe Drouet, Sophie Girod-Fullana, Hélène Ternet-Fontebasso, Pipy, Bernard, Véronique Santran, Julie Bordère, Al-Kattan, Ahmed, Ahmed Al-Kattan   +22 more
core   +1 more source

Force‐Electric Nanotentacles of Tantalum Implant Accelerate Cellular Energy Metabolism/Crosstalk for Immunomodulation‐Vascularized Bone Integration

Advanced Science, EarlyView.
A biomimetic force‐electric nanotentacle‐enabled tantalum (Ta) implant with surface‐nanostructured LiTaO3 (n‐LiTaO3) was first developed via laser nanofabrication combined with Li+‐induced in situ reaction, enabling the transduction of ultrasound into bioelectrical cues.
Taixing Zhang, Ke Ma, Kangqing Zuo, Pandong Lin, Tailong Zhang, Rongliang Ding, Linbo Zhang, Aonan Li, Yinchuan Wang, Yanling Huang, Jichao Feng, Guiyong Xiao, Yupeng Lu, Bing Han, Zhiqiang Wang, Ningbo Li   +15 more
wiley   +1 more source

Deformation Twinning In Bulk Nanocrystalline Metals: Experimental Observations

, 2008
Deformation twins have been observed in nanocrystalline (nc) fcc metals with medium-to-high stacking fault energies such as aluminum, copper, and nickel.
Zhu, YT (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA., Zhu YT, Liao XZ, 武晓雷   +3 more
core   +1 more source