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Porosity… Advantage or Disadvantage?
Microscopy and Microanalysis, 2015Nowadays, due to the increasing demand on portable electronic devices with ultrahigh density data storage and lower power consumption, the miniaturization of ferroelectrics has become an important issue. This progressive development requires the morphology control of the materials and the understanding of the effects of size reduction on the properties
Castro, Alichandra +3 more
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Balancing Mechanical Stability and Ultrahigh Porosity in Crystalline Framework Materials.
Angewandte Chemie, 2018A new mesoporous metal-organic framework (MOF; DUT-60) was conceptually designed in silico using Zn4 O6+ nodes, ditopic and tritopic linkers to explore the stability limits of framework architectures with ultrahigh porosity.
Ines M Hönicke +7 more
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2012
The nature of reservoir rocks containing oil and gas dictates the quantities of fluids trapped within the void space of these rocks, the ability of these fluids to flow through the rocks, and other related physical properties. Undoubtedly, the two most important petrophysical parameters that have dominated the petroleum engineering literature since the
Djebbar Tiab, Erle C. Donaldson
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The nature of reservoir rocks containing oil and gas dictates the quantities of fluids trapped within the void space of these rocks, the ability of these fluids to flow through the rocks, and other related physical properties. Undoubtedly, the two most important petrophysical parameters that have dominated the petroleum engineering literature since the
Djebbar Tiab, Erle C. Donaldson
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Deep learning reservoir porosity prediction based on multilayer long short-term memory network
Geophysics, 2020The cost of obtaining a complete porosity value using traditional coring methods is relatively high, and as the drilling depth increases, the difficulty of obtaining the porosity value also increases. Nowadays, the prediction of fine reservoir parameters
Wei Chen +4 more
semanticscholar +1 more source
ChemInform, 2006 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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Evaluating Porosity Parameters for Porosity–Property Relations
Journal of the American Ceramic Society, 1993Porosity parameters are considered from the standpoint of a map of the volume fraction porosity (P) and the ratio of normalized radii of the pore (rp) and the solid particles, webs, or ligaments (rs) defining the pores. For pore structures derived from uniform stacking of identical spherical particles or bubbles, this “map” turns out to be a single S ...
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Shrinkage Porosity and Gas Porosity
2008Abstract This article provides a detailed discussion on the causes of formation of shrinkage porosity and gas porosity along with the methods involved in eliminating them. It discusses the process of porosity formation and the factors affecting porosity formation, including alloy composition, external pressure, and cooling conditions.
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Welding International, 1992
Porosity constitutes the main defect in aluminium welds. It is generally assumed that the basic reason for its formation is the presence of hydrogen. Hydrogen can originate from a variety of sources. Major sources of hydrogen are surface contamination of both the parent and deposited metals in the form of hydroxides, hydrocarbons or oxides with ...
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Porosity constitutes the main defect in aluminium welds. It is generally assumed that the basic reason for its formation is the presence of hydrogen. Hydrogen can originate from a variety of sources. Major sources of hydrogen are surface contamination of both the parent and deposited metals in the form of hydroxides, hydrocarbons or oxides with ...
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2019
Porosity in carbonate rocks, most commonly limestones and dolostones, is of great importance to study since around half of world’s hydrocarbon reserves are made up of dolomite and limestone, which formed mostly in a shallow marine environment and usually close to where such sediments originate from the source rocks.
Soumyajit Mukherjee, Troyee Dasgupta
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Porosity in carbonate rocks, most commonly limestones and dolostones, is of great importance to study since around half of world’s hydrocarbon reserves are made up of dolomite and limestone, which formed mostly in a shallow marine environment and usually close to where such sediments originate from the source rocks.
Soumyajit Mukherjee, Troyee Dasgupta
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2011
Porosity in castings seems to be entrained air bubbles, although sometimes it is a more uniform dispersion of bifilms partly or fully inflated with a gas from solution in the melt. At other times what appears to be shrinkage porosity is not shrinkage at all, but rather a mass of oxides generated by the entrainment of the oxide surface in the turbulence
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Porosity in castings seems to be entrained air bubbles, although sometimes it is a more uniform dispersion of bifilms partly or fully inflated with a gas from solution in the melt. At other times what appears to be shrinkage porosity is not shrinkage at all, but rather a mass of oxides generated by the entrainment of the oxide surface in the turbulence
openaire +3 more sources