Results 131 to 140 of about 80,863 (300)

Isothermal and cyclic oxidation of TiAl composites

open access: yes, 1993
Titanium Aluminide and TiAl matrix composites reinforced with alumina fibers (PRD166) were fabricated by powder metallurgy. During isothermal oxidation at 950 and 1070 °C, composites containing PRD166 fibers exhibited larger weight gains than monolithic ...
D.J. Duquette, J.S. Fish
core   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

in Electronic Circuit Sim ulation;

open access: yes, 2008
Differen tial ...
Sto Chastic   +3 more
core  

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

激光冲击强化对TiAl合金的显微硬度的影响

open access: yes, 2014
The effects of laser shock processing (LSP) are studied on Vicker micro-hardness and residual stresses distributions of peened samples (TiAl) before and after treating. The specimen are treated by Nd:YAG laser system with the wavelength of 1064 nm, pulse-
Zhao YX(赵亦翔)   +3 more
core  

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

磁过滤对多弧离子镀(TiAl)N薄膜的影响

open access: yes, 2001
介绍了利用过滤电弧离子镀沉积(TiAl) N 薄膜初步的研究结果。在电弧靶材前沿的磁场作用下, 有效 减小了薄膜的宏观颗粒尺寸, 并极大地降低了颗粒密度。同时, 过滤电弧的作用, 使偏压对膜成分的影响减弱, 薄膜的硬度随膜中铝含量的增加而提高, (TiAl) N ...
薛明伦, 李成明, 张勇, 曹尔妍
core  

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

open access: yesAdvanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang   +20 more
wiley   +1 more source

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

open access: yesAdvanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy