Results 101 to 110 of about 1,706,590 (302)

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Investigating Dopant Effects in ZnO as an Electron Transport Layer for Enhanced Efficiency in Organic Photovoltaics

Advanced Materials Interfaces
The power conversion efficiencies of organic solar cells greatly depend on the device architecture and choice of charge transporting materials. Improved power conversion efficiency (PCE) for inverted organic solar cells is observed when using Sn‐doped ...
Anusha Puliparambil Thilakan, Pei‐Lun Hung, Jin‐Bin Yang, Ding‐Lun Lin, Shien‐Der Tzeng, Yu‐Kuei Hsu, Chih‐Hung Tsai, Yi‐Hao Pai, Atshushi Yabushita, Chih‐Wei Luo, Mei‐Hsin Chen   +10 more
doaj   +1 more source

Wavelength- and Energy-Dependent Nonlinear Absorption and Transient Absorption in Silver Nanoparticles

Photonics
Nonlinear absorption (NLA) in silver nanoparticles (Ag NPs) is strongly affected by plasmonic field enhancement. However, its wavelength- and energy-dependent evolution on the red side of the surface plasmon resonance (SPR) band remains insufficiently ...
Jijuan Jiang, Yachen Gao, Jia Liu, Pengfei Hui, Baocheng Zhang, Wenlong Yang   +5 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Ultrafast Excitonic Transitions in Enantiopure and Racemic Squaraine Thin Films

Aggregate
While chirality is a prevalent character of numerous biological and synthetic organic molecules, its selective absorption of circularly polarized light, known as circular dichroism (CD), is typically small due to intrinsically weak coupling between ...
Robin Bernhardt, Lukas Rieland, Tianyi Wang, Marvin F. Schumacher, Arne Lützen, Manuela Schiek, Paul H. M. van Loosdrecht   +6 more
doaj   +1 more source

Transient Absorption Imaging of P3HT:PCBM Photovoltaic Blend:Evidence For Interfacial Charge Transfer State

, 2011
Transient Absorption Imaging of P3HT:PCBM Photovoltaic Blend:Evidence For Interfacial Charge Transfer ...
Juan Cabanillas-Gonzalez, LANZANI, GUGLIELMO, Guglielmo Lanzani, Dario Polli, POLLI, DARIO, Giulia Grancini, CERULLO, GIULIO NICOLA, D. Fazzi, J. Cabanillas Gonzalez, Giulio Cerullo, Daniele Fazzi, GRANCINI, GIULIA, Cabanillas González, Juan, Cerullo G, Grancini G, Lanzani G, Grancini G., Polli D, Lanzani G., Fazzi D, Fazzi D., Cerullo G., Cabanillas-Gonzalez J, Polli D.   +23 more
core   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Research Paper: Transient Absorption Spectroscopy of Deionized Water by Ti: sapphire Femtosecond Laser Pulses [PDF]

فیزیک کاربردی ایران
Transient absorption spectroscopy allows the observation of excited state dynamics following optical excitation across a wide range of time scales, from femtoseconds to milliseconds.
Fereshteh Hajiesmaeilbaigi, Hosein Razzaghi, Eftekhar Sadat Bostandoost, Asama Sadat Motamedi   +3 more
doaj   +1 more source