Results 61 to 70 of about 18,417 (300)

Effect of heat treatment on the microstructure and superelasticity of NiTi alloy via selective laser melting

open access: yesJournal of Materials Research and Technology
In this study, a Ni50.4Ti49.6 shape memory alloy (SMA) was fabricated by selective laser melting (SLM), and it is found that heat treatments were effective to change the phase transformation behavior, microstructure, and superelasticity under compression
H.Z. Lu   +7 more
doaj   +1 more source

Shape Memory and Superelastic Ceramics at Small Scales [PDF]

open access: yes, 2013
Shape memory materials are a class of smart materials able to convert heat into mechanical strain (or strain into heat) by virtue of a martensitic phase transformation.
Du, Zehui   +3 more
core   +1 more source

Epithelium‐Inspired, Ultrahigh‐Toughness, Ultralow‐Hysteresis, and Highly Compressible Polymer Hydrogels as Self‐Powered, Visual, and Underwater Strain Sensors

open access: yesAdvanced Science, EarlyView.
Inspired by epithelial tissue, epithelium‐like structure hydrogels are synthesized. The as‐prepared hydrogels exhibit ultrahigh toughness, ultralow hysteresis, and ultrahigh compressibility, which can be utilized as self‐powered and visual strain sensors.
Yutang Zhou   +4 more
wiley   +1 more source

NiTi shape-memory transformations: minimum-energy pathways between austenite, martensites, and kinetically-limited intermediate states [PDF]

open access: yes, 2014
NiTi is the most used shape-memory alloy, nonetheless, a lack of understanding remains regarding the associated structures and transitions, including their barriers.
Johnson, Duane   +3 more
core   +4 more sources

Novel Vascularized Human Liver Organoids for Modeling Alcohol‐Induced Liver Injury and Developing Hepatoprotective Therapy

open access: yesAdvanced Science, EarlyView.
This study successfully engineered vascularized liver organoids (3HLOs) by co‐culturing human reprogrammed hepatocyte‐like cells (hrHLs) with human umbilical vein endothelial cells (HUVECs) and human umbilical mesenchymal stem cells (HUMSCs). Upon implantation, the 3HLOs established functional vascular anastomosis with the host circulation and ...
Kangdi Yang   +13 more
wiley   +1 more source

Superelasticity over a wide temperature range in a NiTiCu shape memory alloy via laser powder bed fusion

open access: yesMaterials & Design
Additively manufactured NiTi-based shape memory alloys (SMAs) can achieve good superelasticity at specific temperatures. However, the realization of superelasticity over a wide temperature range in additively manufactured NiTi-based SMAs has rarely been ...
Haizhou Lu   +7 more
doaj   +1 more source

Martensitic transformation and superelasticity of Ni-Mn-Ga-Fe alloy microwires

open access: yesCailiao gongcheng, 2023
Ni-Mn-Ga and Ni-Mn-Ga-Fe microwires were prepared by high vacuum arc melting furnace and melt drawing liquid forming equipment, and the microwires were subjected to step-ordered heat treatment. The microstructure and phase structure of the microwire were
LIU Yanfen, LANG Zirui, LI Shuang
doaj   +1 more source

Effects of hydrostatic pressure on the magnetism and martensitic transition of Ni-Mn-In magnetic superelastic alloys

open access: yes, 2007
We report magnetization and differential thermal analysis measurements as a function of pressure accross the martensitic transition in magnetically superelastic Ni-Mn-In alloys.
Aksoy   +16 more
core   +1 more source

Superelastic High‐Entropy Oxide Ceramic Aerogels for Thermal Superinsulation and Sealing at Extreme Conditions

open access: yesAdvanced Science, EarlyView.
A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang   +9 more
wiley   +1 more source

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