Results 31 to 40 of about 3,218 (206)

Design, microstructure, and mechanical property of negative Poisson's ratio porous structure fabricated by LPBF of AlCoCrFeNi2.1 eutectic high-entropy-alloy

Journal of Materials Research and Technology, 2023
Negative Poisson's ratio (NPR) materials are a type of structural materials that show an atypical deformation response. In general, metal-based porous materials with NPR do not have good mechanical properties due to the substrate's limited yield strength
Xiangfei Peng, Xin Cao, Yu Wang, Yong Dong, Zhonghua Li, Hong Xu, Bin Liu, Peikang Bai   +7 more
doaj   +1 more source

A eutectic high-entropy alloy coating of novel hard-surface and soft-core structure with improved tribological properties

Journal of Materials Research and Technology, 2023
Structures with a hard surface and soft core have always been the goal of surface-coating technology. In this study, this goal was achieved in a eutectic high-entropy alloy (EHEA) surface by using aging treatment at elevated temperature. The EHEA surface
Wuxing Ou, Xinjian Yuan, Zhouyu Li, Tao Huang, Le Zhang, Xue Li, Ting Li, Jingfeng Wang   +7 more
doaj   +1 more source

The European Higher Education Area: A road to the future or at way’s end?

Tuning Journal for Higher Education, 2019
The goal of the Bologna Process was to develop a European Higher Education Area within a decade. The goal and the process proved to be attractive, new countries steadily applied for accession, and the Bologna Process has brought about substantial reforms.
Sjur Bergan
doaj   +1 more source

The oxidation mechanisms of Pt and reactive elements modified AlCoCrFeNi2.1 eutectic high-entropy alloy at high temperature

Journal of Materials Research and Technology
AlCoCrFeNi2.1 eutectic high-entropy alloys (EHEAs) show great potential in high-temperature applications due to the dual-phase lamellar structure. In this work, the high-temperature oxidation behavior and scaling mechanisms of three AlCoCrFeNi2.1 EHEAs ...
Qinying Huang, Yuzhuo Li, Peng Zhang, Yingfei Yang, Shengfeng Zhou, Pan Ren, Qiwei Wang, Wei Li, Fuhui Wang   +8 more
doaj   +1 more source

Thermoelectric Properties of CoCrFeNiNb_x Eutectic High Entropy Alloys

Crystals, 2020
Bulk CoCrFeNiNb0.45 eutectic high entropy alloy (EHEA) with ultrafine-lamellar microstructure shows outstanding thermal stability. The EHEA offers opportunities for the development of thermoelectric materials. In this paper, the thermoelectric properties
Kaiming Han, Hui Jiang, Tiandang Huang, Mingyu Wei   +3 more
doaj   +1 more source

ACADEMIC MOBILITY PROVISION: ACHIEVEMENTS AND NEW CHALLENGES FOR THE EUROPEAN HIGHER EDUCATION SPACE

Освітній дискурс, 2019
An analysis of the Bologna Process documents and the legal framework to ensure academic mobility to academic staff and students in Ukraine shows that understanding of the need for further implementation of the below listed: the European Credit Transfer ...
Valentyna Bobrytska, Yevhen Sulima
doaj   +1 more source

Unveiling microstructural origins of the balanced strength–ductility combination in eutectic high-entropy alloys at cryogenic temperatures

Materials Research Letters, 2022
Eutectic high-entropy alloys (EHEAs) feature attractive strength–ductility balance at both ambient and cryogenic temperatures. Nevertheless, microstructural origins underpinning these balanced mechanical properties remain elusive.
Yi Li, Peijian Shi, Mingyang Wang, Yinpan Yang, Yan Wang, Yiqi Li, Yuebo Wen, Weili Ren, Na Min, Yan Chen, Yifeng Guo, Zhe Shen, Tianxiang Zheng, Ningning Liang, Wenjun Lu, Peter K. Liaw, Yunbo Zhong, Yuntian Zhu   +17 more
doaj   +1 more source

Embedding Sustainability Commitments in the Strategic Plans of European Higher Education Institutions

Sustainable Development, EarlyView.
ABSTRACT This study analyses how European universities embed the Sustainable Development Goals (SDGs) into their strategic planning, proposing an integrative and multistakeholder measurement tool—Strategizer Scoring System (SDG‐3S). The research combines the Delphi method, content analysis of 198 strategic plans from universities in 33 European ...
Sandra Barrio Campo, Sara Urionabarrenetxea, Leire San‐Jose   +2 more
wiley   +1 more source

Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation

Materials Research Letters, 2023
A heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However, tailoring the heterostructure is an arduous problem.
Sujung Son, Jungwan Lee, Peyman Asghari-Rad, Rae Eon Kim, Hyojin Park, Jae-il Jang, Wen Chen, Yoon-Uk Heo, Hyoung Seop Kim   +8 more
doaj   +1 more source

Woven Eutectic Lamellar Structures Lead to Ultrahigh Strength and Energy Absorption Capacity in Additively Manufactured Lattice Structures

Small Structures, Volume 6, Issue 5, May 2025.
Herein, AlCoCrFeNi2.1 is selected to produce lattice structures by selective laser melting. The as‐printed lattice structures consist of numerous colonies of nanosized eutectic lamellar structures which are bent and interwind with each other to form a woven microstructure. The unique microstructure leads to unprecedented effective metal strength, yield
Zhiyong Ji, Xingyu Pan, Longlong Wang, Xintian Wang, Xu Chen, Hanwei Fu, Chunlei Qiu   +6 more
wiley   +1 more source