Results 91 to 100 of about 88,027 (290)
Crack analysis of crankshaft for diesel engine
Metalurgija, 2021 The cause of crankshaft fracture crack of a certain vehicle has been analyzed through macroscopic inspection, chemical composition analysis, microstructure analysis, hardness test, mechanical properties test and dimension inspection. The analysis results
D. F. Liu
doaj
, 2006 PhDDenture soft lining materials are used as a cushion between the hard denture base and the oral mucosa. Fluid sorption and solubility may contribute to material hardening, roughening, cracking or tearing, loss of adhesion to the hard denture base or
Liao, Wen-Chien
core
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
High temperature indentation of WC/Co hardmetals
, 2013 WC/Co is the material of choice for most high wear applications such as hot forming operations, drilling, cutting, machining and wire drawing due to its superior wear properties.
Zunega, Jonee Christine
core
Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
PLoS ONE, 2019 Schizophrenia and Parkinson's disease can be controlled with dopamine antagonists and agonists. In order to improve the understanding of the reaction mechanism of these drugs, in this investigation we present a quantum chemical study of 20 antagonists ...
Ana Martínez +2 more
doaj +1 more source
Brazilian Oral Research, 2009 This study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thick ceramic (HeraCeram) or composite (Artglass) disc ...
Nelson Tetsu Iriyama +5 more
doaj +1 more source
, 1998 The electronic structure, hardness (η), and chemical potential (μ) for the 1A‘ and 3A‘‘ states of HNO−HON and the 2A‘‘ state of HSO−HOS have been calculated using HF/6-311++G** and B3LYP/6-311++G** methods.
Scheiner, Steve +2 more
core +1 more source
Should negative electron affinities be used for evaluating the chemical hardness? [PDF]
, 2011 Despite recent advances in computing negative electron affinities using density-functional theory, it is an open issue as to whether it is appropriate to use negative electron affinities, instead of zero electron affinity, to compute the chemical ...
Geerlings, Paul +9 more
core +1 more source
Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source