Results 101 to 110 of about 140,703 (340)

Advances in Micro/Nanofiber‐Based Porous Materials for High‐Performance Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Micro/nanofiber porous materials have engendered great interest in the thermal insulation field. Herein, the structural designs, fabrication techniques, and applications of the micro/nanofiber thermal insulation materials are systematically summarized.
Xiaobao Gong   +5 more
wiley   +1 more source

Comparative study of AA5083/SiC and AA5083/coal composites fabricated by friction stir processing

open access: yesNext Materials
This study investigates and compares the fabrication and characterization of AA5083/SiC and AA5083/Coal composite joints using Friction Stir Processing. Both composites demonstrated significant grain refinement, with average mean grain sizes of 31.148 µm
Oritonda Muribwathoho   +2 more
doaj   +1 more source

Design of beams and slabs of self-compacting concrete fittings working to flexion [PDF]

open access: yes, 2017
Numerous experimental studies indicate that addition of fibers substantially increases the shear strength of concrete and mortar beams, and that stirrups and reinforcing fibers combination can be really effective.
Cobo Escamilla, Alfonso   +4 more
core  

Cat‐Vibrissa‐Inspired Biomass Fiber Aerogels for Flexible and Highly Sensitive Sensors in Monitoring Human Sport

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by cat vibrissae, biomimetic biomass PHFs/SA aerogels (BFAs) are developed via precursor‐assisted in situ polymerization and freeze‐synergistic assembly. These ultralight, porous pressure sensors exhibit high sensitivity and excellent durability, enabling pulse detection, handwriting recognition, Morse code transmission, and notably real‐time ...
Dandan Xie   +6 more
wiley   +1 more source

Structure and Tensile Properties of Pb–0.3%Sn–0.1%Ca Negative Grid Alloy for Lead-Acid Batteries

open access: yesEast European Journal of Physics
The structure and tensile properties of Pb–0.3%Sn–0.1%Ca alloy for negative grids of lead-acid batteries have been characterised as functions of mould preheating temperature during casting and ageing time during storage under atmospheric conditions ...
Victor O. Dzenzerskiy   +4 more
doaj   +1 more source

Evaluation of axial and tangential ultimate tensile strength of zirconium cladding tubes

open access: yesNuclear Engineering and Technology, 2018
Different methods of axial and tangential testing and various sample geometries were investigated, and new test geometries were designed to determine the ultimate tensile strength of zirconium cladding tubes. The finite element method was used to model the tensile tests, and the results of the simulations were evaluated.
Zoltán Hózer   +3 more
openaire   +3 more sources

Effect of Chemically Modified Banana Fibers on the Mechanical Properties of Poly-Dimethyl-Siloxane-Based Composites [PDF]

open access: yes, 2019
The study presents the mechanical properties of polymer-based composites reinforced with chemically modified banana fibers, by alkalization in different concentrations of sodium hydroxide (NaOH).
ABADE-ABUGRE, Miriam   +9 more
core  

Nanoscale austenite reversion through partitioning, segregation, and kinetic freezing: Example of a ductile 2 GPa Fe-Cr-C steel

open access: yes, 2012
Austenite reversion during tempering of a Fe-13.6Cr-0.44C (wt.%) martensite results in an ultrahigh strength ferritic stainless steel with excellent ductility.
Choi, P.   +5 more
core   +1 more source

LipoGels: Robust Self‐Lubricating Physically Cross‐Linked Alginate Hydrogels Embedded with Liposomes

open access: yesAdvanced Functional Materials, EarlyView.
Physically cross‐linked alginate hydrogels embedded with 1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomes (LipoGels) are prepared under optimized conditions to avoid shrinkage and achieve structural uniformity. LipoGels demonstrate robust mechanical strength (Young's modulus ≈1 MPa), excellent lubrication (friction coefficient ≈0.021), and ...
Tao Ma   +4 more
wiley   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

open access: yesAdvanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung   +11 more
wiley   +1 more source

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