Results 141 to 150 of about 16,113 (217)

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 3, Page 1587-1595, May/June 2026.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Multiresponse Tribological Ranking Alternatives of Al–Cu Alloys via an Integrated Taguchi Experimental Design, AHP Weighting, and WASPAS Decision Framework

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
To optimize aluminium–copper alloy compositions and tribological parameters for improved wear performance using an integrated hybrid MCDM approach. The Al–Cu alloy compositions were fabricated through die casting. Their tribological performance was evaluated and optimized using a hybrid Taguchi–AHP–WASPAS methodology under varying loads, sliding speeds,
S. P. Sundar Singh Sivam   +3 more
wiley   +1 more source

Low‐Cost Friction‐Based Force‐Limiting Connection With Reduced Sensitivity to Machining Tolerances and Accelerated Repairability

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 6, Page 1270-1291, May 2026.
ABSTRACT This paper presents a novel yet practical friction‐based structural component design for low‐damage earthquake‐resistant structures. The proposed connection design is based on a conventional slotted‐bolted configuration with the novelty being the use of loose steel washer plates to establish the friction‐sliding interface.
Kaixin Chen   +7 more
wiley   +1 more source

Tribological applications of surface analysis [PDF]

open access: yes
For some years, surface analysis was used in fundamental studies of solid-solid contacts existing in tribological systems. Analysis was used to detect material transfer in sliding contacts.
Wheeler, D. R.
core   +1 more source

Optimized Protocol for the Isolation of UHMWPE Wear Debris by Lyophilization and Chemometric Identification (EDS/PCA)

open access: yesJournal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 114, Issue 5, May 2026.
An optimized protocol combining serum lyophilization, solid‐state alkaline digestion, and PCA‐assisted EDS analysis was validated for the analysis of UHMWPE wear debris. The method increased recovery yield by 20‐fold compared to liquid digestion and preserved particle morphology.
Luis Antonio da Costa Bento   +5 more
wiley   +1 more source

Plasma deposition and surface modification techniques for wear resistance [PDF]

open access: yes
The ion-assisted or plasma coating technology is discussed as it applies to the deposition of hard, wear resistant refractory compound films. Of the many sputtering and ion plating modes and configurations the reactive magnetron sputtering and the ...
Spalvins, T.
core   +1 more source

Experimental and ANN Modeling of Mechanical Properties and Surface Quality in Multi‐Material FDM Printing: Effects of Retraction Parameters

open access: yesPolymers for Advanced Technologies, Volume 37, Issue 5, May 2026.
ABSTRACT In fused deposition modeling (FDM), retraction related parameters are usually adjusted to reduce stringing and oozing; however, their combined effects on mechanical performance and surface quality, particularly in multi‐material printing, remain insufficiently quantified.
Yagmur Akin Yildirim   +3 more
wiley   +1 more source

Tribological properties of Ag/Ti films on Al2O3 ceramic substrates [PDF]

open access: yes
Ag solid lubricant films, with a thin Ti interlayer for enhanced adhesion, were sputter deposited on Al2O3 substrate disks to reduce friction and wear. The dual Ag/Ti films were tested at room temperature in a pin-on-disk tribometer sliding against bare,
Dellacorte, Christopher   +2 more
core   +1 more source

Overcoming Challenges in 3D Printing of Polyolefins and Their Composites: A Review on Strategies for Improved Printability and Performance

open access: yesPolymer Engineering &Science, Volume 66, Issue 5, Page 3100-3141, May 2026.
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy