Results 61 to 70 of about 13,314 (263)

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Mass production of two-dimensional oxides by rapid heating of hydrous chlorides

Nature Communications, 2016
Oxide nanosheets are of interest for a range of applications. Here the authors demonstrate a simple route combining gas evolution and exfoliation of hydrated chloride precursors for making large quantities of oxide nanosheets of various compositions.
Chunsong Zhao, Haitian Zhang, Wenjie Si, Hui Wu   +3 more
doaj   +1 more source

Thermally stable polymer–ceramic composites for microwave antenna applications

Journal of Advanced Ceramics, 2016
Polymer–ceramic composites were prepared by twin screw melt extrusion with high-density polyethylene (HDPE) as the matrix and polystyrene-coated BaO–Nd2O3–TiO2 (BNT) ceramics as the filling material.
Li Zhang, Jie Zhang, Zhenxing Yue, Longtu Li   +3 more
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Exceptional figure of merit achieved in boron-dispersed GeTe-based thermoelectric composites

Nature Communications
GeTe is a promising p-type material with increasingly enhanced thermoelectric properties reported in recent years, demonstrating its superiority for mid-temperature applications.
Yilin Jiang, Bin Su, Jincheng Yu, Zhanran Han, Haihua Hu, Hua-Lu Zhuang, Hezhang Li, Jinfeng Dong, Jing-Wei Li, Chao Wang, Zhen-Hua Ge, Jing Feng, Fu-Hua Sun, Jing-Feng Li   +13 more
doaj   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Nest-like multilevel structured graphene oxide-on-polyacrylonitrile membranes for highly efficient filtration of ultrafine particles

Journal of Materiomics, 2019
Developing filtration media for particulate matter (PM) removal has been proven to be extremely challenging. Here, we report a facile and scalable strategy to fabricate a multi-level structured polyacrylonitrile/graphene oxide (PAN/GO) air filtration ...
Jing Li, Danzhen Zhang, Xin Jiang, Xuanliang Zhao, Ruirui Hu, Yujia Zhong, Hongwei Zhu   +6 more
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

High‐performance alumina composite ceramics with brick‐and‐mortar structure derived from microsphere

International Journal of Ceramic Engineering & Science
A series of alumina composite ceramics with a brick‐and‐mortar structure were successfully prepared by coating with different contents of ZrO2 and alumina sol on Al2O3 microspheres and hot pressing.
Yedong Rong, Shihui Zhao, Qifan Zhang, Jianli Qiao, Guolong Sang, Xiaoqing Xi, Jinlong Yang   +6 more
doaj   +1 more source