Results 41 to 50 of about 363,776 (306)

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

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

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, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

The Effect of Multiple Firing on the Bond Strength of Porcelain-fused-to-different Metal Combinations: An In Vitro Study [PDF]

Dental Journal of Advance Studies
Aims and objectives: Compare the effect of multiple firing cycles on the shear bond strength of metal alloys with different dental porcelains. Methodology: Two brands of nickel-chromium alloy (Commend and Unimetal), two brands of cobalt-chromium alloy ...
Sandhya M Raghavan, Rajesh Chankramath, Reba Plackel Balakrishnan, Susan Mathew, Thankappan Pillai Sreelal   +4 more
doaj   +1 more source

The effects of different desensitizer agents on shear bond strength of orthodontic brackets after home bleaching: an in vitro study

European Oral Research, 2018
Purpose The aim of this study was to test the null hypothesis that no difference exists between shear bond strength values of control and bleaching plus desensitizer applied groups.
Nisa Gül Amuk, Aslı Baysal, Yakup Üstün, Gökmen Kurt   +3 more
doaj   +3 more sources

Shear bond strength of self-ligating brackets

The European Journal of Orthodontics, 2010
The aim of this study was to compare the shear bond strength (SBS) and adhesive remnant index (ARI) scores of conventional and self-ligating brackets. Conventional stainless steel brackets (group 1, Step; Leone) and three different passive and interactive self-ligating brackets (group 2, Smart Clip, 3M Unitek; group 3, Quick, Forestadent; and group 4 ...
SFONDRINI, MARIA FRANCESCA, SCRIBANTE, ANDREA, Gatti Sara   +2 more
openaire   +3 more sources

Effect of different surface treatments on the shear bond strength of nanofilled composite repairs

Journal of Dental Research, Dental Clinics, Dental Prospects, 2016
Background. Repairing aged composite resin is a challenging process. Many surface treatment options have been proposed to this end. This study evaluated the effect of different surface treatments on the shear bond strength (SBS) of nano-filled composite ...
Ghazaleh Ahmadizenouz, B. Esmaeili, Arnica Taghvaei, Z. Jamali, Toloo Jafari, Farshid Amiri Daneshvar, S. Khafri   +6 more
semanticscholar   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

The effect of bleaching of teeth on the bond strength of brackets: An in vitro study

Journal of Pharmacy and Bioallied Sciences, 2013
Aim: To determine the reversal effect of 10% sodium ascorbate, on the bond strength of previously bleached teeth with hydrogen peroxide. Materials and Methods: Sixty extracted maxillary premolars were selected and they were divided randomly into three ...
Shiji Kunjappan, Vadivel Kumaar, Prithiviraj, Vasanthan, Syed Altaf Khalid, Joseph Paul   +5 more
doaj   +1 more source

Shear Bond Strength of Three Orthodontic Bonding Systems on Enamel and Restorative Materials

BioMed Research International, 2016
Objective. The aim of this in vitro study was to determine the shear bond strength (SBS) and adhesive remnant index (ARI) score of two self-etching no-mix adhesives (iBond™ and Scotchbond™) on different prosthetic surfaces and enamel, in comparison with ...
Andreas Hellak, Jennifer Ebeling, M. Schauseil, Steffen Stein, M. Roggendorf, H. Korbmacher-Steiner   +5 more
semanticscholar   +1 more source