Results 41 to 50 of about 234,872 (302)

Differential Scanning Calorimetry (DSC) Analyses Of Superelastic And Nonsuperelastic Nickel-Titanium Orthodontic Wires [PDF]

, 1996
The purpose of this study was to determine the transformation temperatures for the austenitic, martensitic, and rhombohedral (R) structure phases in representative as-received commercial nitinol (NiTi) orthodontic wire alloys, to reconcile discrepancies ...
Bradley, T. Gerard, Brantley, William A., Culbertson, Bill M.   +2 more
core   +3 more sources

In vitro corrosion behaviour of phenolic coated nickel–titanium surfaces

Biosurface and Biotribology, 2019
The biocompatibility of implantable nickel–titanium biomaterials relies on the quality of their surfaces. In this study, nickel–titanium surfaces are coated with phenolic thin films of tannic acid and pyrogallol with the purpose of studying their ...
Simon Longela, Athanasios Chatzitakis
doaj   +1 more source

Initial arch wires for alignment of crooked teeth with fixed orthodontic braces [PDF]

, 2010
Background The initial arch wire is the first arch wire to be inserted into the fixed appliance at the beginning of orthodontic treatment and is used mainly for correcting crowding and rotations of teeth. With a number of orthodontic arch wires available
AlQabandi, Bernhold, Bloom, Burstone, Burstone, Chekay, Cobb, Cobb, Dalstra, Egger, Erdinc, Evans, Evans, Fernandes, Fernandes, Firestone, Fleming, Fleming, Huffman, Jones, Jones, Jones, Kapila, Keim, Kuftinec, Lew, Linge, Linge, Little, Mandall, Manzanera, Marques, Miura, Ng'ang'a, Ngan, O'Brien, O'Brien, O'Brien, Pandis, Pandis, Proffit, Richmond, Riley, Rudolph, Scheurer, Weiland, Weiland, West, West, Whiting-O'Keefe, Wyk   +50 more
core   +3 more sources

Comparative Assessment of Canal Transportation and Centering Ability of Reciproc and One Shape File Systems Using CBCT-An In Vitro Study [PDF]

Journal of Clinical and Diagnostic Research, 2017
Introduction: Root canal preparation leads to deviation of the canal anatomy causing canal transportation which affects the success of the treatment. Cone Beam Computed Tomography (CBCT) is a non invasive imaging technique to analyse the shape of the
Anika Mittal, Shifali Dadu, Neetu Sharma Singh, Sarita Singh, Bhupesh Gupta, Anju Abraham, Bidya Yendrembam, Shilpa Kumari   +7 more
doaj   +1 more source

Energy absorption capacity of NiTi lattice structure (1st report: Evaluation of stiffness and strength of the structure by considering the effective length of the strand)

Nihon Kikai Gakkai ronbunshu
In this study, a method for evaluating the mechanical properties, specifically the initial stiffness and martensitic transformation onset stress, of NiTi lattice structures, Body Centered Cubic (BCC) and Rhombic Dodecahedral (RD) structures, under ...
Yuji ATAGO, Kuniharu USHIJIMA, Koichi TSUCHIYA   +2 more
doaj   +1 more source

Thermodynamic Investigation of Propagating Behavior in SHS for Equiatomic and Non-Equiatomic NiTi Alloys Using Factsage Software [PDF]

Archives of Metallurgy and Materials
In the current work, the thermodynamic properties of equiatomic and non-equiatomic Ni-Ti were estimated using Factsage Software for the “self-propagating high temperature synthesis (SHS) method.
B. Keskin, B. Derin
doaj   +1 more source

The Degree to which Kindergarten Teachers in Jordan Possess Scientific and Engineering Practices in Light of the Next Generation Science Standards (NGSS)

دراسات: العلوم التربوية, 2022
Objectives: This study aims to identify the degree to which kindergarten teachers in Jordan possess scientific and engineering practices in light of the Next Generation Science Standards (NGSS).
Mohammad Khair N. Nawafleh, Amal Fakhari Jaradat   +1 more
doaj   +1 more source

Lattice instabilities of cubic NiTi from first principles [PDF]

, 2001
The phonon dispersion relation of NiTi in the simple cubic B2 structure is computed using first-principles density-functional perturbation theory with pseudopotentials and a plane-wave basis set.
A. DalCorso, A. M. Rappe, Claudia Bungaro, D. Vanderbilt, E. Goo, F. Birch, G. L. Zhao, H. Tietz, J. P. Perdew, J. P. Perdew, K. Otsvka, Karin M. Rabe, M. Methfessel, M. Sanati, N. E. Zein, O. Mercier, P. Blaha, P. Giannozzi, Ph. Ghosez, R. D. James, R. D. King-Smith, R. F. Hehemann, R. Yu, S. Baroni, U. V. Waghmare, Vitaliy Godlevsky, Xiangyang Huang, Y. Kudoh, Y. Y. Ye   +28 more
core   +1 more source

A Review on Additive Manufacturing Methods for NiTi Shape Memory Alloy Production

Materials
The NiTi alloy, known as Nitinol, represents one of the most investigated smart alloys, exhibiting a shape memory effect and superelasticity. These, among many other remarkable attributes, enable its utilization in various applications, encompassing the ...
K. Kubášová, Veronika Drátovská, M. Losertová, P. Salvetr, M. Kopelent, Filip Kořínek, Vojtěch Havlas, J. Džugan, Matej Daniel   +8 more
semanticscholar   +1 more source

Achieving superelasticity in additively manufactured NiTi in compression without post-process heat treatment

Scientific Reports, 2019
Shape memory alloys (SMAs), such as Nitinol (i.e., NiTi), are of great importance in biomedical and engineering applications due to their unique superelasticity and shape memory properties. In recent years, additive manufacturing (AM) processes have been
Narges Shayesteh Moghaddam, S. Saedi, A. Amerinatanzi, Alejandro Hinojos, A. Ramazani, J. Kundin, M. Mills, H. Karaca, M. Elahinia   +8 more
semanticscholar   +1 more source