Shape memory alloy (SMA) actuators: The role of material, form, and scaling effects

MS Kim, JK Heo, H Rodrigue, HT Lee… - Advanced …, 2023‏ - Wiley Online Library
Shape memory alloys (SMAs) are smart materials that are widely used to create intelligent
devices because of their high energy density, actuation strain, and biocompatibility …

Materials, physics and systems for multicaloric cooling

H Hou, S Qian, I Takeuchi - Nature Reviews Materials, 2022‏ - nature.com
Calls to minimize greenhouse gas emissions and demands for higher energy efficiency
continue to drive research into alternative cooling and refrigeration technologies. The caloric …

High-performance multimode elastocaloric cooling system

S Qian, D Catalini, J Muehlbauer, B Liu, H Mevada… - Science, 2023‏ - science.org
Develo** zero–global warming potential refrigerants has emerged as one area that helps
address global climate change concerns. Various high-efficiency caloric cooling techniques …

Molecular dynamics simulation of laser assisted grinding of GaN crystals

C Li, Y Hu, F Zhang, Y Geng, B Meng - International Journal of Mechanical …, 2023‏ - Elsevier
Gallium nitride crystal is a typical difficult-to-machine material due to its distinct anisotropy,
high brittleness, and high hardness. The molecular dynamics simulations of traditional …

The synthesis and application of crystalline–amorphous hybrid materials

H Lan, J Wang, L Cheng, D Yu, H Wang… - Chemical Society …, 2024‏ - pubs.rsc.org
Crystalline–amorphous hybrid materials (CA-HMs) possess the merits of both pure
crystalline and amorphous phases. Abundant dangling bonds, unsaturated coordination …

The effects of nano-additives on the mechanical, impact, vibration, and buckling/post-buckling properties of composites: A review

L Shan, CY Tan, X Shen, S Ramesh, MS Zarei… - Journal of Materials …, 2023‏ - Elsevier
This study presents a review of the effect of nano-additives in improving the mechanical
properties of composites. Nano-additives added to composites, also termed …

Grain boundary and dislocation strengthening of nanocrystalline NiTi for stable elastocaloric cooling

H Lin, P Hua, K Huang, Q Li, Q Sun - Scripta Materialia, 2023‏ - Elsevier
We fabricate a nanocrystalline NiTi with an average grain size of 31 nm and high-density
(4.7× 10 15 m− 2) dislocations via cold rolling (38% thickness reduction) and annealing …

Large elastocaloric effect covering a broad temperature window in a composition-graded Ni50Mn31. 5Ti18. 5 alloy prepared by magnetic field-assisted directional …

H Wang, Z Li, L Hou, X Li, H Yan, B Yang, L Zuo - Acta Materialia, 2024‏ - Elsevier
Elastocaloric effect in shape memory alloys relies on the latent heat associated with stress-
induced martensitic transformation, which can be exploited for solid-state cooling …

Enhancing cooling performance of NiTi elastocaloric tube refrigerant via internal grooving

J Zhang, Y Zhu, S Cheng, S Yao, Q Sun - Applied Thermal Engineering, 2022‏ - Elsevier
Develo** novel heat transfer surface structure on NiTi shape memory alloy tubes has big
potential to enhance the elastocaloric cooling performance. In this work, an internally …

Continuous and efficient elastocaloric air cooling by coil-bending

X Li, P Hua, Q Sun - Nature Communications, 2023‏ - nature.com
Elastocaloric cooling has emerged as an eco-friendly technology capable of eliminating
greenhouse-gas refrigerants. However, its development is limited by the large driving force …