Academic literature on the topic 'Eta Ni3Ti'

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Journal articles on the topic "Eta Ni3Ti"

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Kuga, Milton Carlos, Mário Tanomaru-Filho, Gisele Faria, Marcus Vinicius Reis Só, Tiago Galletti, and José Roberto Sampaio Bavello. "Calcium hydroxide intracanal dressing removal with different rotary instruments and irrigating solutions: a scanning electron microscopy study." Brazilian Dental Journal 21, no. 4 (2010): 310–14. http://dx.doi.org/10.1590/s0103-64402010000400004.

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This study evaluated the efficacy of 2 types of rotary instruments employed in association with sodium hypochlorite (NaOCl) or EDTA in removing calcium hydroxide (CH) residues from root canals dentin walls. Forty-two mandibular human incisors were instrumented with the ProTaper System up to F2 instrument, irrigated with 2.5% NaOCl followed by 17% EDTA and filled with a CH intracanal dressing. After 7 days, the CH dressing was removed using 4 techniques: NiTi rotary instrument size 25, 0.06 taper (K3 Endo) and irrigation with 17% EDTA (Group 1), NiTi rotary F1 instrument (ProTaper) and irrigati
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Jia, Lei, Hui Xie, Zhen Lin Lu, Xiao Wang, and Ya Ling Zhao. "Research on the Optimization of Ni/Si Atomic Ratio for Cu-Ni-Si Alloys with High Strength and High Electrical Conductivity." Materials Science Forum 695 (July 2011): 344–47. http://dx.doi.org/10.4028/www.scientific.net/msf.695.344.

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Two sets of Cu-Ni-Si alloys with different Cu contents and Ni/Si atomic ratios were fabricated under the state of near-equilibrium solidification. The microstructures were observed by SEM and phase compositions were identified by XRD. The electrical conductivity and hardness were tested by Eddy-Conductivity Apparatus (ECA) and Digital Rockwell Hardmeter, respectively. The experimental results show that all the researched Cu-Ni-Si alloys are consisted of three phases, i.e. α-Cu(Ni,Si), Ni3Si and δ-Ni2Si. With the increase of Ni/Si atomic ratio, the amount of Ni3Si decreases persistently but tha
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Phondani, Prakash Chandra, Rakesh Kumar Maikhuri, Lakhpat Singh Rawat, et al. "Ethnobotanical Uses of Plants among the Bhotiya Tribal Communities of Niti Valley in Central Himalaya, India." Ethnobotany Research and Applications 8 (August 9, 2010): 233. http://dx.doi.org/10.17348/era.8.0.233-244.

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Dagna, Alberto, Riccardo Beltrami, Stefano Bianchi, Claudio Poggio, and Giulia Gastaldo. "Scanning Electron Microscopic Evaluation of Root Canal Walls after shaping with Different Single-use Rotary Systems." International Journal of Experimental Dental Science 5, no. 2 (2016): 93–98. http://dx.doi.org/10.5005/jp-journals-10029-1133.

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ABSTRACT The aim of the present study was to investigate the cleaning efficacy of four new single-use rotary nickel–titanium (NiTi) systems. A total of 48 single-rooted freshly extracted teeth were divided into four groups. Root canals were shaped with the single-use NiTi systems (ProTaper Next, F360, OneShape and F6 SkyTaper) using 5.25% NaOCl and 17% ethylenediaminetetraacetic acid (EDTA) solutions. Specimens were fractured longitudinally and prepared for scanning electron microscopic (SEM) analysis at standard magnification of 2,500?. The presence/absence of debris smear layer and smear lay
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Pan, Dong, Yuguang Zhao, Yitong Wang, Xiaofeng Xu, and Xueying Chong. "Development of New Cobalt-Free Maraging Steel with Superior Mechanical Properties via Electro-Pulsing Technology." Metals 9, no. 12 (2019): 1299. http://dx.doi.org/10.3390/met9121299.

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The ductility of cobalt-free maraging steel is unsatisfactory because of the high content of Ti. Traditional heat treatment can not effectively improve the ductility of this kind steel. In this contribution, high-energy electro-pulsing is adopted in a T250 steel to solve this problem efficiently. It is found that the EPS treatment (electro-pulsing treatment under water-cooling condition) can accelerate the formation of retained austenite and nano stacking faults. Meanwhile, the microstructure is also refined by EPS treatment. Then, taking the EPS sample as the initial state, nano-reverted aust
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Poy, Marília Emília Riede, Caroline Solda, and José Roberto Vanni. "Prevalência de fraturas de instrumentos endodônticos de NiTi durante o tratamento endodôntico." Journal of Oral Investigations 7, no. 1 (2018): 3. http://dx.doi.org/10.18256/2238-510x.2018.v7i1.1404.

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A limpeza do sistema de canais radiculares é realizada com instrumentos de aço inoxidável e mais recentemente com instrumentos de níquel-titânio (NiTi), estes possuem maior flexibilidade e resistência. Porém, durante este processo pode ocorrer a separação dos instrumentos no interior dos canais radiculares. O presente trabalho objetivou avaliar por meio das anotações e radiografias periapicais dos prontuários quais elementos dentários, raízes e terços radiculares são mais susceptíveis para ocorrência de fratura de instrumentos rotatórios ou reciprocantes de NiTi. Para tanto, procedeu-se anális
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Rachmawati, Cyntia Ayu, and Anna Muryani. "Perawatan gigi premolar kedua rahang atas dengan saluran akar bengkok menggunakan jarum NiTi rotary." Jurnal Kedokteran Gigi Universitas Padjadjaran 32, no. 2 (2020): 17. http://dx.doi.org/10.24198/jkg.v32i2.27397.

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ABSTRAKPendahuluan: Preparasi saluran akar dapat menjadi tantangan apabila dihadapkan pada morfologi sistem saluran akar yang kompleks. Gigi dengan saluran akar bengkok dapat menimbulkan kesulitan bagi dokter gigi dalam melakukan perawatan saluran akar. Perawatan saluran akar bengkok membutuhkan penggunaan alat, bahan dan teknik yang efektif untuk membersihkan saluran akar dengan baik. Tujuan laporan kasus ini adalah menjelaskan perawatan gigi premolar kedua rahang atas dengan saluran akar bengkok menggunakan jarum NiTi rotary. Laporan kasus: Pasien perempuan usia 16 tahun dengan rujukan dari
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Salobir, Nada. "Za aktivno državljanstvo je potrebna vzgoja: Kjer se stroka in politika srečata z roko v roki." Andragoška spoznanja 5, no. 4 (1999): 80–81. http://dx.doi.org/10.4312/as.5.4.80-81.

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Na kolokviju ne iščemo ene resnice ali pravilnih odgovorov, je misel, ki nam omogoča predstaviti različne poglede, da bi bogatili drug drugega in se razvijali.« Razvijamo se z nenehnim izobraževanjem in vzgajanjem. Če govorimo o aktivnem državljanstvu, je večji poudarek na vzgoji kot na izobraževanju. Vzgoja za aktivno državljanstvo naj bi se začela že v vrtcu, osnovni šoli, za katero lahko rečemo, da čedalje bolj izobražuje kot vzgaja. Konkreten in preverjenem podatek pove, da v 1. in 2. razredu osnovne šole ni bila izrečena niti ena beseda o našem državnem prazniku, »Češ otroci bodo že vedel
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Ahmetoglu, Fuat, Ali Keles, Muhammet Yalcin, and Neslihan Simsek. "Effectiveness of different irrigation systems on smear layer removal: A scanning electron microscopic study." European Journal of Dentistry 08, no. 01 (2014): 053–57. http://dx.doi.org/10.4103/1305-7456.126241.

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ABSTRACT Objectives: To evaluate effectiveness of the apical negative pressure irrigation (EndoVac), passive ultrasonic irrigation (PUI), and conventional needle irrigation (CI) systems on smear layer (SR) removal. Materials and Methods: Sixty single-rooted canines were prepared using NiTi rotary files and subjected to different irrigation regimens: EndoVac with NaOCl (Group 1) or NaOCl/EDTA (Group 2); PUI with NaOCl (Group 3) or NaOCl/EDTA (Group 4); CI with NaOCl (Group 5) or NaOCl/EDTA (Group 6). The roots were split longitudinally. SEM images were taken to evaluate the amount of residual S
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SENICA, Klemen. "Imperialna nostalgija na Japonskem: politična instrumentalizacija šintoističnega svetišča Yasukuni." Asian Studies 3, no. 1 (2015): 241–62. http://dx.doi.org/10.4312/as.2015.3.1.241-262.

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Šintoistično svetišče Yasukuni je ena od nevralgičnih točk v japonskih zunanjepolitičnih odnosih s sosednjimi državami, predvsem Kitajsko in Južno Korejo. V recentnem obdobju je bilo deležno izjemne medijske pozornosti širom sveta predvsem zavoljo dejstva, da ga je v času svojega vodenja vlade redno obiskoval Koizumi Jun’ichirō, čeprav je njegovi praksi počastitve spomina padlim za »japonsko stvar« oponiral širok spekter posameznikov na Japonskem, da kitajskih in južnokorejskih državnikov niti ne omenjam. Sodim, da je potrebno glorificiranje izbranih žrtev velikega Japonskega imperija, ki ga p
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Dissertations / Theses on the topic "Eta Ni3Ti"

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Chaswal, Vibhor. "Thermal Aging Effects on IN718 Plus Nickel-base Superalloy." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1299854439.

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Haider, Waseem. "Enhanced Biocompatibility of NiTi (Nitinol) Via Surface Treatment and Alloying." FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/177.

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It is projected that by 2020, there will be 138 million Americans over 45, the age at which the increased incidence of heart diseases is documented. Many will require stents. This multi-billion dollar industry, with over 2 million patients worldwide, 15% of whom use Nitinol stents have experienced a decline in sales recently, due in part to thrombosis. It is a sudden blood clot that forms inside stents. As a result, the Food and Drug Administration and American Heart Association are calling for a new generation of stents, new designs and different alloys that are more adaptable to the arteries
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Kockar, Benat. "Shape memory behavior of ultrafine grained NiTi and TiNiPd shape memory alloys." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2543.

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Rajagopalan, Sudhir. "INSTRUMENTED NANOINDENTATION STUDIES OF DEFORMATION IN SHAPE MEMORY ALLOYS." Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3283.

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Near equi-atomic nickel titanium (NiTi) shape memory alloys (SMAs) are a class of materials characterized by their unique deformation behavior. In these alloys, deformation mechanisms such as mechanical twinning and stress induced phase transformation between a high symmetry phase (austenite) and a low symmetry phase (martensite) additionally occur and influence mechanical behavior and thus their functionality. Consequently, applications of SMAs usually call for precise phase transformation temperatures, which depend on the thermomechanical history and the composition of the alloy. Instrumente
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Vanterpool, Jessica. "Combustion Synthesis and Characterization of Porous NiTi Intermetallic For Structural Application." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5719.

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This thesis describes experimental investigation of thermal and combustion phenomena as well as structure for self- propagating combustion synthesis of porous Ni - Ti intermetallic aimed for structural biomedical application. The control parameters for the porosity distribution have been investigated experimentally through varying the preheat temperature, initial porosity, initial elemental particle size, and applied pressure during the fabrication process. Ni and Ti elemental powders are mixed using a 1:1 ratio. The mixture is compressed using several different compression forces to produce
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Qiu, Shipeng. "INVESTIGATION OF THERMAL, ELASTIC AND LOAD-BIASED TRANSFORMATION STRAINS IN NITI SHAPE MEMORY ALLOYS." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3338.

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Polycrystalline NiTi shape memory alloys have the ability to recover their original, pre-deformed shape in the presence of external loads when heated through a solid-solid phase transformation from a lower-symmetry B19' martensite phase to a higher-symmetry B2 austenite phase. The strain associated with a shape memory alloy in an actuator application typically has thermal, elastic and inelastic contributions. The objective of this work was to investigate the aforementioned strains by recourse to in situ neutron diffraction experiments during selected combinations of heating, cooling and/or mec
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Benafan, Othmane. "Deformation and Phase Transformation Processes in Polycrystalline NiTi and NiTiHf High Temperature Shape Memory Alloys." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5123.

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The unique ability of shape memory alloys (SMAs) to remember and recover their original shape after large deformation offers vast potential for their integration in advanced engineering applications. SMAs can generate recoverable shape changes of several percent strain even when opposed by large stresses owing to reversible deformation mechanisms such as twinning and stress-induced martensite. For the most part, these alloys have been largely used in the biomedical industry but with limited application in other fields. This limitation arises from the complexities of prevailing microstructural
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Manjeri, Radhakrishnan. "Low Temperature and Reduced Length Scale Behavior of Shape Memory and Superelastic NiTi and NiTiFe Alloys." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6227.

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Shape memory and superelastic applications of NiTi based alloys have typically been limited to near room temperature or to bulk length scales. The objective of this work is two-fold: first, to investigate shape memory behavior at low temperatures in the context of the R-phase transformation in NiTiFe alloys by recourse to arc-melting, differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and mechanical testing at low temperatures; and second, to investigate superelasticity and two-way shape memory behavior at reduced length scales in the context of NiTi by recourse to
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Orgéas, Laurent. "Étude expérimentale et numérique du comportement thermomécanique d'un alliage à mémoire de forme industriel NiTi." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10256.

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Le present document est une contribution a l'etude experimentale, theorique et numerique du comportement thermomecanique d'un alliage a memoire de forme industriel niti. Le travail est constitue principalement de trois parties : validation des hypotheses de base utilisees dans les lois de comportement, realisation d'essais mecaniques pour caracteriser les comportements ferroelastique et superelastique du materiau, et modelisation tridimensionnelle appliquee au calcul de structures. L'objectif d'un tel travail est de fournir a l'ingenieur de bureau d'etudes un outil numerique capable de dimensi
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Ankrum, Matthew Todd. "K3 Endo, Pro Taper, and Pro File Systems: Breakage and Distortion in Severely Curved Roots of Molars." VCU Scholars Compass, 2003. http://scholarscompass.vcu.edu/etd/842.

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K3 ENDO, PRO TAPER, AND PRO FILE SYSTEMS: BREAKAGE AND DISTORTION IN SEVERELY CURVED ROOTS OF MOLARS.By Matthew T. Ankrum, D.D.S.A Thesis submitted in partial fulfillment of the requirements for the degree of Master of Science at Virginia Commonwealth University.Virginia Commonwealth University, 2003Major Director: Gary R. Hartwell, D.D.S., M.S.Chairman and Professor, Department of EndodonticsIt was the aim of this study to investigate the incidence of file breakage and distortion when the Pro Taper, K3 Endo and ProFile systems were used to instrument canals in the severely curved roots of e
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Books on the topic "Eta Ni3Ti"

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Devendra. Jaina nīti śāstra: Eka pariśīlana. Śrī Tāraka Guru Jaina Granthālaya, 1988.

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Guptā, Śaśi. Nārī nīti-sāgara: Nārī-nīti dharma para ādhārita eka grantha. Anurāga Prakāśana, 1992.

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Kiraṇa, Prabhā. Saṃskr̥ta sāhitya meṃ nīti: Eka vimarśa. Vāṇī Mandira, 1989.

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Rāshṭrīya-Jala-Nīti 2002 Rāshṭrīya Kāryaśālā (2003 Bhāratīya Sāmājika Saṃsthāna). Rāshṭrīya jala nīti--2002: Eka samīkshātmaka paricaya. Bhāratīya Sāmājika Saṃsthāna, 2003.

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Jośī, Satyamohana. Sāṃskr̥tika nīti: Eka adhyayana = Cultural policy : a preliminary study. Loka Sāhitya Parishad, 2003.

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Agama evam Baibila ki dharma niti, eka anusilana. Nyu Bharatiya Buka Koraporesana, 2011.

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Conference papers on the topic "Eta Ni3Ti"

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Jain, Ankur, and Kenneth E. Goodson. "Measurement of Thermophysical Properties of Thin Film Shape Memory Alloys Using the 3-Omega Method." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81902.

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The excellent mechanical properties of thin film shape memory alloys like Nickel-Titanium (NiTi) have led to their widespread use in MEMS-based micropumps, microactuators, microgrippers, etc. Shape memory based micropumps and actuators have superior work densities compared to other technologies. Characterization of thermophysical properties of these materials is important for modeling the behavior of NiTi-based microdevices. For example, the frequency response of shape-memory based microactuators depends on the rate of dissipation of thermal energy, which is a strong function of the thermal pr
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Chun, Youngjae, Daniel S. Levi, K. P. Mohanchandra, and Gregory P. Carman. "Fabrication Processes for Creating Micro Features in Thin Film NiTi Endovascular Grafts." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1249.

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Micro features were created in thin film NiTi using a novel lift-off process to create an endovascular biomedical device. This manuscript describes fabrication problems with wet etching and introduces an effective way, named “Lift-off” process to solve undercut and nonuniform pattern issues. Two lift-off processes (i.e., lift-off I and II) are discussed. Lift-off I process has fracture issues and the film peels off the substrate due to high aspect ratio post structures. Lift-off II process use the film on the top of the Si substrate to fabricate various shape patterns (i.e., ellipse, diamond,
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Shi, Huiyu, Katherine Vorvolakos, Maureen Dreher, Donna Walsh, and Nandini Duraiswamy. "In Vitro Evaluation of Coating Performance of Guidewire Surrogates." In 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3516.

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Vascular guidewires are commonly used during interventional surgery to help introduce and position intravascular catheters at the treatment site. Nitinol (NiTi) and stainless steel are the most commonly used alloys in guidewires and a thin layer of polymer coating is usually applied on the guidewire surface to reduce friction within the lumen of blood vessels. Hydrophobic (e.g. PTFE) or hydrophilic (e.g., hyaluronic acid (HA), polyvinylpyrrolidone (PVP), etc.) coatings may be used for this purpose, but coating separation/flaking has been reported from intravascular medical devices [1]. Coating
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Coda, Alberto, Andrea Cadelli, and Francesco Butera. "Recent Advances in Materials Development for Emerging SMA Applications." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7441.

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Shape Memory Alloys (SMAs) are active metallic materials classified as “smart” or “intelligent” materials along with piezoelectric ceramic and polymers, electro-active plastics, electro-rheological and magneto-rheological fluids and others. SMAs show a multitude of different and dependent properties interesting for technological applications. These properties depend on the peculiar deformation mechanisms, accounting for the so-called shape memory effect. SMAs are nowadays used in quite different fields, like thermo-mechanical devices, anti-loosening systems, biomedical applications, mechanical
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