Results 31 to 40 of about 741,713 (352)

Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloy [PDF]

open access: yes, 2019
This study was aimed at investigating the effect of internal porosity on the fatigue strength of wire + arc additive manufactured titanium alloy (WAAM Ti-6Al-4V).
Awd, Mustafa   +6 more
core   +2 more sources

Quality Assurance Testing for Screening Defective Aluminum Die-cast Rotors of Squirrel Cage Induction Machines [PDF]

open access: yes, 2018
The recent trend in squirrel cage induction motor manufacturing is to replace fabricated copper rotors with aluminum die-cast rotors to reduce manufacturing cost to stay competitive in the global market. Porosity in aluminum die-cast squirrel cage rotors
Gyftakis, Konstantinos N.   +4 more
core   +1 more source

A Novel Nanoporous Adsorbent for Pesticides Obtained from Biogenic Calcium Carbonate Derived from Waste Crab Shells

open access: yesNanomaterials, 2023
A novel nanoporous adsorbent was obtained through the thermal treatment and chemical wash of the wasted crab shells (BC1) and characterized by various techniques.
Fran Nekvapil   +6 more
doaj   +1 more source

Mathematical modeling and simulation of porosity on thermomechanical properties of UHTCs under hypersonic conditions

open access: yesInternational Journal of Ceramic Engineering & Science, 2023
Ultrahigh temperature ceramics (UHTCs) were analyzed for their suitability in hypersonic flight conditions using balanced heat equations, transport equation, and finite element modeling technique. Mathematical model was derived on the assumption that the
Carmine Zuccarini   +4 more
doaj   +1 more source

Instabilities in the dissolution of a porous matrix [PDF]

open access: yes, 2011
A reactive fluid dissolving the surrounding rock matrix can trigger an instability in the dissolution front, leading to spontaneous formation of pronounced channels or wormholes.
A. J. C. Ladd   +18 more
core   +2 more sources

porosity

open access: yes, 2014
Citation: 'porosity' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04762 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
  +5 more sources

The Effect of Different Levels of Superabsorbent A300 in Some Physics and Hydraulic Properties of a Silty Loam Soil [PDF]

open access: yesعلوم و مهندسی آبیاری, 2014
The need for water storage is steadily growing because of increasing water demands due to growing population in arid and semiarid areas such as Iran where droughts occur in succession.
Kobra Kheiri, Saeid Boroomandnasab
doaj  

Concentration Gradient, Diffusion, and Flow Through Open Porous Medium Near Percolation Threshold via Computer Simulations [PDF]

open access: yes, 2001
The interacting lattice gas model is used to simulate fluid flow through an open percolating porous medium with the fluid entering at the source-end and leaving from the opposite end.
Barma   +23 more
core   +4 more sources

Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste

open access: yesFrontiers in Materials, 2019
For the first time, tricalcium silicate (C3S) and an aqueous solution were mixed and allowed to hydrate in the microgravity environment aboard the International Space Station (ISS).
Juliana Moraes Neves   +4 more
doaj   +1 more source

Influence of PA66 fiber content on porosity of porous aluminum based ceramic core

open access: yesCailiao gongcheng, 2020
In order to solve the problem that alumina based ceramic core is not easy to remove core, a certain amount of PA66 fiber was added as pore forming material to prepare porous aluminum based ceramic core by hot pressing. The influence of PA66 fiber content
LU Gang   +4 more
doaj   +1 more source

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