Results 81 to 90 of about 289,222 (269)

Photon antibunching in a cluster of giant CdSe/CdS nanocrystals

Nature Communications, 2018
Semiconductor nanocrystals have potential applications in optoelectronic devices including single-photon emission sources. Here, Lv et al. demonstrate that nanocrystals within small clusters can electronically couple, thereby increasing their optical ...
Bihu Lv, Huichao Zhang, Lipeng Wang, Chunfeng Zhang, Xiaoyong Wang, Jiayu Zhang, Min Xiao   +6 more
doaj   +1 more source

Fabrication of Surface Micromachined AlN Piezoelectric Microstructures and its Potential Apllication to RF Resonators [PDF]

, 2005
We report on a novel microfabrication method to fabricate aluminum nitride (AlN) piezoelectric microstructures down to 2 microns size by a surface micromachining process.
Berenschot, E., Elwenspoek, M., Krijnen, G., Saravanan, S.   +3 more
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Three dimensional spider-web-like superconducting filamentary paths in $K_xFe_{2-y}Se_2$ single crystals

, 2013
Since the discovery of high temperature superconductivity in F-doped LaFeAsO, many new iron based superconductors with different structures have been fabricated2.
Deng, Qiang, Ding, Xiaxin, Fang, Delong, Hu, Yuhui, Liu, Jianzhong, Ma, Guobin, Meng, Chong, Wang, Zhenyu, Wen, Hai-Hu, Yang, Huan   +9 more
core   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Author Correction: Influence of microstructure on superconductivity in K x Fe2−y Se2 and evidence for a new parent phase K2Fe7Se8

Nature Communications, 2020
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Xiaxin Ding, Delong Fang, Zhenyu Wang, Huan Yang, Jianzhong Liu, Qiang Deng, Guobin Ma, Chong Meng, Yuhui Hu, Hai-Hu Wen   +9 more
doaj   +1 more source

Fracture initiation in multi-phase materials: a systematic three-dimensional approach using a FFT-based solver

, 2016
This paper studies a two-phase material with a microstructure composed of a hard brittle reinforcement phase embedded in a soft ductile matrix. It addresses the full three-dimensional nature of the microstructure and macroscopic deformation.
Appolaire, B., Cottura, M., de Geus, T. W. J., Geers, M. G. D., Peerlings, R. H. J.   +4 more
core   +3 more sources

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

The continuing battle against defects in nickel-base superalloys [PDF]

In the six decades since the identification of age hardenable nickel-base superalloys their compositions and microstructures have changed markedly. Current alloys are tailored for specific applications.
Dreshfield, R. L.
core   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source