Results 21 to 30 of about 28,259 (261)

Preparation of visible light sensitive nanophotocatalyst by electrochemical anodizing and chemical bath deposition method [PDF]

open access: yesشیمی کاربردی روز, 2016
The purpose of this research is preparation of titanium dioxide nanotubes modified with nickel nanoparticles as a photocatalyst sensitive to visible light.
محمد محسن مومنی   +1 more
doaj   +1 more source

In vitro study on cyclic fatigue resistance of three types of nickel titanium files in preparation for bending root canals

open access: yes口腔疾病防治
Objective The purpose of this study was to investigate the differences in the anti cyclic fatigue performance of Woride KS (WKS), Proteper Gold (PTG), and Hyflex CM (HCM) nickel titanium instruments with different tip diameters in curved root canal ...
WANG Yuxin   +4 more
doaj   +1 more source

Deformation of Orthodontic Archwires Over Time

open access: yesAustralasian Orthodontic Journal, 1994
Most previous studies of archwire deformation over time (hereafter referred to as “time-dependent deformation of orthodontic wires”) have been conducted at a constant room temperature.
Wong E.K.F., Borland D.W., West V.C.
doaj   +1 more source

Biomechanical Behaviors of the Orthodontic Wires [PDF]

open access: yesAl-Rafidain Dental Journal, 2009
Aims: To evaluate and compare the yield, ultimate and failure stresses of the untreated and the treatedsuper–elastic Nickel titanium and Spring hard stainless steal orthodontic arch wires with artificial salivafor one, two and four weeks.
Hussain A Obaidi , Sarmad S Al–Qassar
doaj   +1 more source

Electrochemical Investigation of Interaction of Candida albicans with Titanium-Nickel Implant in Human Saliva

open access: yesInternational Journal of Electrochemical Science, 2022
Titanium and its alloys have been widely adopted in dental prosthetics due to their excellent biocompatibility, light weight, high resilience and good corrosion resistance. The human oral cavity is the second largest microbial host system after the human
Bin Qiao, Tao Lv
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter   +9 more
wiley   +1 more source

Developing the ductility and thermal fatigue cracking property of laser-deposited Stellite 6 coatings by adding titanium and nickel

open access: yesMaterials & Design, 2019
A design strategy is presented for the development of a laser-deposited Stellite 6 coating with high ductility and low thermal fatigue crack propagation rate.
Ying Wu   +5 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

Frictional resistance of self-ligating versus conventional brackets in different bracket-archwire-angle combinations

open access: yesJournal of Applied Oral Science, 2014
Objective: To compare the influence of archwire material (NiTi, beta-Ti and stainless steel) and brackets design (self-ligating and conventional) on the frictional force resistance.
Maria Regina Guerra MONTEIRO   +3 more
doaj   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

open access: yesAdvanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara   +4 more
wiley   +1 more source

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