Results 51 to 60 of about 347,684 (229)

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Fracture mechanics of pseudoelastic NiTi alloys: review of the research activities carried out at University of Calabria

Fracture and Structural Integrity, 2012
This paper reports a brief review of the research activities on fracture mechanics of nickel-titanium based shape memory alloys carried out at University of Calabria.
C. Maletta, F. Furgiuele, E. Sgambitterra   +2 more
doaj   +3 more sources

Application and progress of NiTi alloys in vascular interventional medical devices

Journal of Materials Research and Technology
Nowadays there has been a substantial escalation in the consumption of the global annual mortality rate due to cardiovascular and cerebrovascular diseases, and the traditional stainless-steel materials used for interventional treatments are sometimes ...
Minghao Yin, Tianju Chen, Ping Liu, Xun Ma, Shirui Zhou, Li Shen, Shuangyuan Wang, Wei Li   +7 more
doaj   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Insight into the cracking mechanism of super-elastic NiTi alloy fabricated by laser powder bed fusion

Virtual and Physical Prototyping
Laser powder bed fusion is considered to be an effective method for forming high-precision NiTi alloys. NiTi alloys formed from Ti-rich or low-Ni content NiTi powders as raw materials exhibit shape memory or trained to be superelastic at room temperature.
Kun Li, Ruijin Ma, Jianbin Zhan, Jinzhou Wu, Jiahui Fang, Shengqian Wang, Qiuju Yang, Na Gong, Lawrence E. Murr, Huajun Cao   +9 more
doaj   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

MACHINABILITY ENHANCEMENT OF NiTi–Nb SHAPE MEMORY MATERIAL THROUGH Nb MODIFICATION AND TAGUCHI-BASED OPTIMIZATION OF DRILLING PARAMETERS [PDF]

Journal of the Egyptian Society of Tribology
A shape memory performance and pseudo elasticity have been shown by Nickel-Titanium (NiTi) alloy, but it is extremely hard to machine owing to high ductility, severe work hardening, and bad chip-breaking.
Sabreen A. Abdelwahab, Waleed M. Mabrouk, Khaled M. Ibrahim, Ayoub Nassar, El-Tantawy Ahmed   +4 more
doaj   +1 more source

Shape Memory Behavior of Porous NiTi Alloy

Metallurgical and Materials Transactions A, 2016
Shape memory behavior of porous NiTi alloy is dependent on the phases, and mechanical or thermal background. The phases change with solution heat treatment and aging. Fully reversible shape memory behavior was observed during thermal cycling, and recoverable strains increased with the increasing stress from 2 to 50 MPa.
Kaya, Mehmet, Cakmak, Omer
openaire   +2 more sources

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

Study on the Thermal Oxidation Surface Modification and Deformation Behavior of NiTi Alloys [PDF]

Cailiao Baohu
In order to investigate the effects of thermal oxidation surface modification on the properties of NiTi alloys，the effect of preparing oxide films on NiTi alloys by thermal oxidation technique at different temperatures (300～700 ℃) in atmospheric ...
YU Fei, XIE Dong
doaj   +1 more source