Results 51 to 60 of about 178,865 (298)
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli+5 more
wiley +1 more source
Synthesis and application of polyacrylate reverse demulsifier with high stability
Polyacrylate reverse demulsifier CR-3 was synthesized with methyl methacrylate, ethyl acrylate, and styrene as monomers by aqueous polymerization method. The effects of emulsifier type, emulsifier dosage, and effective content of CR-3 on the stability of
GUO Xiaoyi+5 more
doaj +1 more source
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek+7 more
wiley +1 more source
A Dynamic Model For A Drill In The Drilling Process
{"references": ["D. D. Rosard, \"Natural Frequency of Twisted Cantilever Beams,\" in 1952\nPro. ASME Paper No. 52-A-15,", "G. W. Jarrett and P. C. Warner, \"The Vibration of Rotating Tapered Twisted Beam,\" ASME, Journal of Applied Mechanics, pp. 381-389,1953.", "O. Tekinalp and A. G.
Bo Wun Huang+3 more
openaire +2 more sources
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong+11 more
wiley +1 more source
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram+2 more
wiley +1 more source
A new experimental setup, incorporating digital image correlation and infrared thermography in combination with inductive‐conductive heating for precise temperature control, is used to analyze the mechanical behavior and microstructural changes of sheet metal under complex thermomechanical test conditions that represent quench and partitioning ...
Christian Illgen+4 more
wiley +1 more source
Gerontology has for a long time been described as “data rich, but theory poor”. This is true for the study of spatial exclusion, too: in a recent scoping review on old‑age exclusion, Walsh and his colleagues called for more theoretical work in the field ...
Thibauld Moulaert+2 more
doaj
Traditional water-in-oil drilling fluids are limited by their shear thinning behavior. In this article, we propose the synthesis of a thermal resistant quaternary ammonium salt gemini surfactant DQGE-I. This surfactant was synthesized using monomers such
Liu Yonggui+4 more
doaj +1 more source
Vibration characteristics of casing string under the exciting force of an electric vibrator
Vibration cementing is a new technique that can significantly improve the bond strength of cementing interface. To popularize this technique, it is necessary to solve the key problem of how to make cementing string generate downhole radial vibration in ...
Yiyong Yin, Yinao Su, Zhaohui Wang
doaj +1 more source