Results 81 to 90 of about 716,517 (294)

Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test [PDF]

open access: yes, 2009
A method is presented for the evaluation of the permeability-porosity relationship in a low-permeability porous material using the results of a single transient test. This method accounts for both elastic and non-elastic deformations of the sample during
Ai   +39 more
core   +5 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Multi-functional variational porosity in bone tissue scaffolds [PDF]

open access: yes, 2012
Commonly used homogeneous scaffolds do not capture the intricate spatial material concentration presented in bone internal architecture. On the other hand gradient in porosity along the internal scaffold architecture might contribute for performing ...
Khoda, AKM Bashirul   +2 more
core  

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

ANALISIS KEKUATAN SAMBUNGAN LAS SMAW ( SHIELDED METAL ARC WELDING ) PADA MARINE PLATE ST 42 AKIBAT FAKTOR CACAT POROSITAS DAN INCOMPLETE PENETRATION

open access: yesKapal, 2012
At this moment, weld engineering is applied widely in tacking on joints at construction of steel building, especially at ship building. All important in weld engineering is when process tacking on weld metal with steel metal to be one unities.
Imam Pujo Mulyatno, Sarjito Jokosisworo
doaj   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

Pervious concrete made with electric furnace slag (FEA): mechanical and hydraulic properties

open access: yesRevista IBRACON de Estruturas e Materiais
The objective of this work is to make feasible the use of FEA slag instead of the conventional bulk aggregate in the pervious concrete (PC) production, reaching the minimum parameters required by NBR16416/2015 and ACI 522R-10.
G. F. B. SANDOVAL   +4 more
doaj   +2 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

The Microstructures of Tetradesmus obliquus Biofilms Formed Under Different Nutrient Supplies

open access: yesApplied Sciences
The microstructures of microalgae biofilms affect biofilms’ growth, which is critical in developing efficient microalgae biofilm-based culture systems. Herein, the microstructures of Tetradesmus obliquus biofilms cultured under different nutrients were ...
Hu Zhang   +5 more
doaj   +1 more source

Emergence and seismological implications of phase transition and universality in a system with interaction between thermal pressurization and dilatancy

open access: yes, 2017
A dynamic earthquake source process is modeled by assuming interaction among frictional heat, fluid pressure, and inelastic porosity. In particular, fluid pressure increase due to frictional heating (thermal pressurization effect) and fluid pressure ...
Suzuki, Takehito
core   +1 more source

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