Results 81 to 90 of about 2,043 (215)

Nonwoven rCF/PA6 Thermoplastic Composites: Hybrid Commingled Fibers vs. Powder Impregnation—Effects on Microstructure and Mechanical Properties

Polymer Composites, EarlyView.
Comparison of powder impregnation and hybrid commingled non‐wovens for PA6/rCF nonwoven composites. The two‐step powder route gives lower voids and higher properties, while the single‐step hybrid route is limited by precursor inhomogeneity and high void content.
Gaia Francesca Lupia, Tommaso Pini, Ilaria Rossitti, Sara Taherinezhad Tayebi, Marco Valente   +4 more
wiley   +1 more source

Computational modelling of dynamic recrystallisation of Ni-based superalloy during linear friction welding. [PDF]

Int J Adv Manuf Technol, 2022
Okeke SI, Harrison NM, Tong M.
europepmc   +1 more source

Analysis of the Interfacial Bond Strength in Overmoulded Thermoplastic Composites

Polymer Composites, EarlyView.
Two‐step injection overmoulding process investigated in this work, showing selective gate injection over a 450 mm demonstrator beam to vary flow length and rib pull‐off mechanical testing with fractographic characterisation of the overmoulded interface.
Casilda S. Villalobos, Samson Gnanadass, Jaipal Gupta, Neill Raath, Neil Reynolds, Ton Peijs   +5 more
wiley   +1 more source

Investigation of microstructural match at friction welded TC17/TA19 interface based on β reconstruction under various frictional linear speeds

Journal of Materials Research and Technology
TC17 (α+β titanium alloy) and TA19 (near-α titanium alloy) are often joined in aerospace compressor rotors by rotary friction welding, but their differing phase transformation behaviors cause a mismatched microstructure at the weld interface.
Feng Jin, Tianqi Wu, Baiming Wang, Kang Zhang, Haodong Rao, Jiatao Liu, Zhonggang Sun, Xianglong Xu, Ting Chen, Jinglong Li   +9 more
doaj   +1 more source

Acrylonitrile Styrene Acrylate (ASA) With Optimized Aluminum Oxide (Al2O3) Nanofiller Content for MEX Additive Manufacturing: Thermomechanical, Rheological, and Quality Metrics

Polymer Composites, EarlyView.
Characterization processes for ASA/Al2O3 nanocomposites in MEX 3D printing. ABSTRACT As additive manufacturing (AM) continues to expand, the demand for durable components for outdoor applications is increasing. Acrylonitrile styrene acrylate (ASA), a weather‐resistant polymer, is widely used in these applications, and improving its performance could ...
Nectarios Vidakis, Markos Petousis, Nikolaos Michailidis, Emmanuel Stratakis, Vassilis M. Papadakis, Maria Spyridaki, Aikaterini Gkagkanatsiou, Apostolos Argyros, Nektarios K. Nasikas   +8 more
wiley   +1 more source

Linear Friction Welding of an AZ91 Magnesium Alloy and the Effect of Ca Additions on the Weld Characteristics. [PDF]

Materials (Basel), 2021
Villegas-Armenta LA, Wanjara P, Gholipour J, Nakatsugawa I, Chino Y, Pekguleryuz M.   +5 more
europepmc   +1 more source

Residual Stress Analysis in Linear Friction Welded Ti17

Materials
Residual stresses with a complex distribution are generated after linear friction welding, which affects the service performance of the weldment. In this work, a numerical model for linear-friction-welded Ti17 (Ti-5Al-2Sn-2Zr-4Mo-4Cr) was developed to investigate the evolution of residual stresses and the effect of welding parameters on residual ...
He, Peng, Wu, Yunxin, Zhang, Tao, Jin, Junlong   +3 more
openaire   +2 more sources

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Design and Development of a Modular Ballistic Pendulum for High‐Impulse Measurement in Contact and Near‐Field Explosive Loading

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Measuring impulse from explosive charges in contact and near‐field configurations presents practical challenges due to wide variation in impulse magnitude. Ballistic pendula are widely used for impulse measurement, but many existing designs are limited to narrow operating envelopes or are poorly suited to repeated contact testing and tamped ...
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source

Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source