Results 121 to 130 of about 5,307 (307)

Analysis of Banded Texture of Friction Stir Weld Bead Surface by Image Processing Technique [PDF]

open access: yes, 2013
The tool shoulder of friction stir welding is considered to be one of the prime element which controls the material flow and heat input, generating required temperature and hydrostatic pressure along the weld line in ...
Rajashekar, R., Rajaprakash, B.M.
core  

An Assisting Contact Electrification Strategy for Achieving Self‐Recoverable Mechanoluminescence

open access: yesAdvanced Science, EarlyView.
ABSTRACT Self‐recoverable mechanoluminescence (ML) is a unique property of materials that can stably emit light under repeated stress, enabling new applications in smart sensing, displays, and wearable devices. However, self‐recoverable ML is very rare and only observed in a few active phosphors excited by piezoelectricity or contact electrification ...
Jianwen Zhang   +12 more
wiley   +1 more source

Thermoelectric PANI/TeNWs Fiber Based Microsensor for Passive Temperature and Active Chemical Sensing

open access: yesAdvanced Science, EarlyView.
Continuous wet‐spinning of PANI with TeNWs yields a multifunctional microfiber. Oriented TeNWs impose chain alignment and enhance π‐electron delocalization, boosting the Seebeck coefficient to 59.9 µV K−1 for passive temperature sensing (1 K detection limit), while achieving high pH sensitivity (59.25 mV pH−1) and rapid NH3 response (0.96 s).
Dongmei Xie   +10 more
wiley   +1 more source

Stereodivergent C‐(Hetero)Aryl Glycosylation by Nickel‐Catalyzed Redox‐Neutral Cross‐Coupling of Glycosyl Sulfonyl Hydrazides

open access: yesAngewandte Chemie, EarlyView.
A nickel‐catalyzed C–C cross‐coupling protocol employing bench‐stable glycosyl sulfonyl hydrazides as practical glycosyl radical precursors is reported. A variety of (hetero)aryl iodides underwent cross‐coupling under redox‐neutral conditions to afford structurally diverse unprotected C‐(hetero)aryl glycosides.
Cai‐Ming Wang   +3 more
wiley   +2 more sources

Effect of Friction Stir Processing (FSP) to the Mechanical Properties of 7075-T73 Aluminum Alloys Plates Welded by Friction Stir Welding

open access: yesJournal of Engineering and Sustainable Development, 2014
Friction stir processing is a new method of changing the properties of a metal through intense, localized plastic deformation ,this process mixes the material without changing the phase (by melting or otherwise) and creates a microstructure with fine,
Kadhim Kamail Resan   +2 more
doaj  

ROS‐Targeted Nanomotor Therapy in OA: Cartilage Protection and Pain Relief

open access: yesAdvanced Science, EarlyView.
ROS‐responsive NM@MET nanomotors utilize elevated ROS in osteoarthritic joints to promote deep penetration into cartilage and synovium and enable sustained metformin release. By scavenging ROS, regulating NRF2/KEAP1 signaling, protecting chondrocytes, suppressing synovial inflammation, and attenuating nociceptive signaling, NM@MET alleviates pain and ...
Meng Zheng   +19 more
wiley   +1 more source

The use of friction-surface processing as a method of corrosion protection of a friction-stir weld in the AL-LI-CU alloy AA2050-T851 [PDF]

open access: yes, 2011
Friction-surface processing (FSP) was explored as a possible method for mitigating corrosion of a friction-stir weld (FSW) in the Al-Li-Cu alloy AA2050-T851.
Melrose, Ben James
core  

Lightweight, Elastic Ceramic Fabrics for Broadband Electromagnetic Absorption and High Temperature Thermal Insulation

open access: yesAdvanced Science, EarlyView.
This study reports lightweight, elastic ceramic fabrics with broadband electromagnetic absorption (EAB = 9.8 GHz) and high‐temperature thermal insulation, enabled by precise microstructural control during ultrafast high‐temperature sintering (UHS), which induces the precipitation of defect‐rich t‐ZrO2 nanograins and turbostratic C nanoclusters.
Jiahao Yang   +9 more
wiley   +1 more source

Friction Stir Processing Technologies [PDF]

open access: yes, 2003
Friction stir processing is an emerging technique based on the principles of friction stir welding (FSW). It is the only solid state technology that is capable of producing wide-ranging microstructural modifications at localized regions of interest. This
Mishra, Rajiv S.
core  

Ion irradiation and examination of Additive friction stir deposited 316 stainless steel

open access: yesMaterials & Design
This study explored solid-state additive friction stir deposition (AFSD) as a modular manufacturing technology, with the aim of enabling a more rapid and streamlined on-site fabrication process for large meter-scale nuclear structural components with ...
Priyanka Agrawal   +9 more
doaj   +1 more source

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