Results 11 to 20 of about 234,872 (302)

Corrosion and passive film characteristics of 3D-printed NiTi shape memory alloys in artificial saliva

open access: yesRare Metals, 2023
采用电化学测试和表面分析方法, 研究了采用L-PBF技术制备的3种3D打印的NiTi形状记忆合金在37 ℃人工唾液中的腐蚀行为和钝化膜特性。L-PBF NiTi的钝化性受工艺参数及表面形貌和理化性质的影响。结果表明, L-PBF NiTi表面的缺陷在腐蚀初期可以提高钝化膜的形成速率, 但缓慢形成的钝化膜具有最佳的耐蚀性。钝化膜的厚度与其耐蚀性呈正相关。钝化膜的外层主要为Ti的氧化物、内层主要为Ni的氧化物。当线性能量密度为0.2 J·m^−1, 体积能量密度为56 J·mm^−3时制备的L-PBF ...
Ming Liu   +5 more
semanticscholar   +1 more source

Magical NiTi expander [PDF]

open access: yesBMJ Case Reports, 2013
A 24-year-old male patient was referred to our department for expansion of the constricted maxillary arch as a presurgical procedure for the correction of congenital facial disfigurement. On examination, the patient had a convex profile, increased interlabial gap, tongue thrust, limited mouth opening, posterior crossbite, asymmetric ‘V’-shaped ...
Chandrika Girish, Katti   +3 more
openaire   +2 more sources

A review of the latest developments in rotary NiTi technology and root canal preparation.

open access: yesAustralian dental journal, 2023
The introduction of nickel-titanium (NiTi) mechanical instruments dramatically changed clinical endodontics over the last few decades. Before NiTi, it was necessary to use more instruments to create an ideal root canal shape, and many approaches ...
NM Grande   +4 more
semanticscholar   +1 more source

Characterization of pre-alloyed NiTi powders produced by electrode induction-melting inert gas atomization for additive manufacturing [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2022
In this research, the characteristics of nickel-titanium (NiTi) powders produced by electrode induction melting inert gas atomization (EIGA) technique for additive manufacturing (AM) technology are investigated using various powder characterization ...
Wang J.-W.   +6 more
doaj   +1 more source

Additive Manufacturing: An Opportunity for the Fabrication of Near-Net-Shape NiTi Implants

open access: yesJournal of Manufacturing and Materials Processing, 2022
Nickel–titanium (NiTi) is a shape-memory alloy, a type of material whose name is derived from its ability to recover its original shape upon heating to a certain temperature.
M. S. Safavi   +4 more
semanticscholar   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloy for Biomedical Applications: Review of the LPBF Process Ecosystem

open access: yesJOM, 2021
NiTi shape memory alloys (SMAs) are used in a broad range of biomedical applications because of their unique properties including biocompatibility and high corrosion and wear resistance as well as functional properties such as superelasticity and the ...
K. Safaei   +9 more
semanticscholar   +1 more source

A Review on Design and Mechanical Properties of Additively Manufactured NiTi Implants for Orthopedic Applications

open access: yesInternational Journal of Bioprinting, 2021
NiTi alloy has a wide range of applications as a biomaterial due to its high ductility, low corrosion rate, and favorable biocompatibility. Although Young’s modulus of NiTi is relatively low, it still needs to be reduced; one of the promising ways is by ...
Yintao Zhang   +5 more
semanticscholar   +1 more source

Compressive mechanical properties and shape memory effect of NiTi gradient lattice structures fabricated by laser powder bed fusion

open access: yesInternational Journal of Extreme Manufacturing, 2022
Laser additive manufacturing (AM) of lattice structures with light weight, excellent impact resistance, and energy absorption performance is receiving considerable attention in aerospace, transportation, and mechanical equipment application fields.
Wei Chen   +5 more
semanticscholar   +1 more source

Welding and Joining of NiTi Shape Memory Alloys: A Review

open access: yesProgress in Materials Science, 2017
João Pedro Oliveira   +2 more
exaly   +2 more sources

Ajaran Kepemimpinan Niti Sastra dalam Seva Niti

open access: yesSphatika: Jurnal Teologi, 2020
<p>Nitisastra is the teachings of leaders, which also means knowledge that aims to build a state both in terms of governance, governance and community governance. In connection with the development of the state, government and society based on Nitisastra, the teachings of Hinduism can provide moral values from the form of development.
Made Nugi Nugraha   +1 more
openaire   +2 more sources

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