Results 71 to 80 of about 88,027 (290)
Chemical and physical aspects of wear processes in polymers
, 1972 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A series of homogeneous halogen containing polymers have been studied whilst sliding against mild steel and oxides present on mild steel.
Richardson, MOW
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Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Turkish Journal of OrthodonticsObjective: The aim of this study was to evaluate the surface hardness, surface roughness, and chemical structure changes of four vacuum-formed retainer (VFR) materials after thermoforming.
Yasemin Tunca +3 more
doaj +1 more source
Environment Conservation Journal, 2018 Malin river originates from the Kotdwara and merges with Ganga at RavalliGhat in Bijnor. It is an important river of city Najibabad Distt- Bijnor (U.P) because it is the main source of irrigation for agriculture in the most areas of city Najibabad.
R. Bhutiani +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Characterization of Chemical Reactions from the Profiles of Energy, Chemical Potential, and Hardness
The Journal of Physical Chemistry A, 1999 A theoretical model relating the kinetic, mechanistic, and thermodynamics aspects of a chemical reaction is presented. The model is based upon the consistency between the principle of maximum hardness and the Hammond postulate, and it is used to obtain insights about the reaction mechanisms and to define rate constants in terms of the chemical ...
openaire +6 more sources
Anion and platinum group metal binding of bis(thioureido) ligands [PDF]
, 2007 A series of bis(thioureido) ligands have been synthesised, which show anion binding in acetone-d(_6). Their structures have been determined by X-ray crystallography and some exhibit hydrogen bonding interactions with the π-electrons of the the ...
Lenthall, Joseph T., Lenthall, Joseph T
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Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Indian Journal of Dental Research, 2018 Context: Maxillofacial prostheses need frequent refabrication due to degradation of color and deterioration of physical properties of the elastomer.
Anna Serene Babu +2 more
doaj +1 more source