Results 71 to 80 of about 9,090 (254)

An Assisting Contact Electrification Strategy for Achieving Self‐Recoverable Mechanoluminescence

Advanced Science, EarlyView.
ABSTRACT Self‐recoverable mechanoluminescence (ML) is a unique property of materials that can stably emit light under repeated stress, enabling new applications in smart sensing, displays, and wearable devices. However, self‐recoverable ML is very rare and only observed in a few active phosphors excited by piezoelectricity or contact electrification ...
Jianwen Zhang, Weiguang Wang, Jinyu Zhou, Jiachi Zhang, Wenxiang Wang, Shanwen Wang, Jing Liu, Haoyang Li, Xianfeng Jin, Chi Zhang, Ziyuan Li, Zhaofeng Wang, Yuhua Wang   +12 more
wiley   +1 more source

Synthesis and crystal structure analysis of the magnetic ternary compound Mn2GeTe4 [PDF]

Avances en Química, 2009
Samples of the ternary phase Mn2GeTe4 were synthesized by direct fusion using the anneal method. X-ray powder diffraction results indicated that this material crystallizes with orthorhombic symmetry, space group Pnma, and unit cell parameters: a = 13.950(
Miguel Quintero, Jines E. Contreras, Pedro Grima- Gallardo, Asiloé J. Mora, Luis Betancourt, Gerzon E. Delgado   +5 more
doaj  

Crystallographic changes in lead zirconate titanate due to neutron irradiation

AIP Advances, 2014
Piezoelectric and ferroelectric materials are useful as the active element in non-destructive monitoring devices for high-radiation areas. Here, crystallographic structural refinement (i.e., the Rietveld method) is used to quantify the type and extent of
Alexandra Henriques, Joseph T. Graham, Sheldon Landsberger, Jon F. Ihlefeld, Geoff L. Brennecka, Donald W. Brown, Jennifer S. Forrester, Jacob L. Jones   +7 more
doaj   +1 more source

Characterization and densification of defect pyrochlore oxide powders ABi2Ta5O16 (A=Na, Tl)

Heliyon, 2019
Defect pyrochlore oxide powders ABi2Ta5O16, in the pseudo-binary systems BiTaO4–ATa3O8 (A = Na, Tl), were prepared by solid state method. The structural study showed that all oxides crystallize in a cubic system with the space group Fd3m, the lattice ...
O. Ait Sidi Ahmed, L. Bourja, A. Chagraoui, A. Tairi, A. Moussaoui, H. Ait Oulahyane, B. Manoun, S. Villain   +7 more
doaj   +1 more source

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

Advanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang, Dingshun Yan, Yong Zhang, Zhiming Li   +3 more
wiley   +1 more source

X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia)

Geologia Croatica, 2011
Potassium feldspars from different granitoids and gneisses of Papuk Mt. (Slavonia, Croatia) have been investigated by X-ray powder diffraction. Diffraction patterns classically observed as well as patterns calculated by Rietveld refinement were compared ...
Marija Horvat, Darko Tibljaš, György Buda, György Lovas   +3 more
doaj   +1 more source

Automating Chemical Reasoning in High‐Throughput Phase Identification With a Probabilistic, LLM‐Guided Framework

Advanced Science, EarlyView.
Autonomous laboratories can now synthesize materials faster than experts can interpret the resulting diffraction data. A probabilistic framework combines refinement‐fit metrics with large language model‐derived chemical reasoning to rank competing phase interpretations and flag those unsuitable for autonomous use.
Olympia Dartsi, Lauren N. Walters, Amalie E. Trewartha, Steven B. Torrisi, Amanda Volk, Liam Joyce, Gerbrand Ceder, Anubhav Jain   +7 more
wiley   +1 more source

Extended Anionic Network in Mixed‐Valent Nitridocobaltates(I/II) LnCo2N2 (Ln = La, Pr, Nd)

Advanced Science, EarlyView.
This study presents the high‐pressure synthesis of LnCo2N2 (Ln = La, Pr, Nd) with Co in mixed valent states of +I/+II. The compounds demonstrate the stabilization of a nitridocobaltate with extended anionic Co–N layers where Co is threefold coordinated.
Nina A. M. Prinz, Jonas M. Albrecht, Dominik Werhahn, Simon Steinberg, Clemens Ritter, Simon D. Kloß   +5 more
wiley   +1 more source

Effect of Al3+ substitution on structural, morphological, magnetic, optical, and functional study of ZnFe2O4 nanoparticles

AIP Advances
ZnFe1−xAlxO4 (x = 0.0, 0.1, 0.3, and 0.5) samples were synthesized by the combustion method. The x-ray diffraction pattern confirms that the ferrite samples have a cubic inverse spinel structure, and Rietveld refinement adds more weight to this ...
M. Sundararajan, Kholod Dahlous, M. Ramesh, R. S. Rimal Isaac, S. Yuvaraj, Jothi Ramalingam Rajabathar, Chandra Sekhar Dash, P. Aji Udhaya   +7 more
doaj   +1 more source

High‐Temperature Persistent Luminescence and Anti‐Thermal Quenching in LiGa5O8 by Trap Engineering

Advanced Science, EarlyView.
Cu/Zn co‐doping creates deep and thermally stable traps in LiGa5O8, enabling enhanced high‐temperature persistent luminescence, anti‐thermal‐quenching emission, and dynamic blue‐to‐red color evolution. ABSTRACT High‐temperature luminescent materials are essential for applications in displays, information storage, anti‐counterfeiting, and extreme ...
Yuchen Wang, Yilong Fan, Jianhua Liu, Jin Zhang, Dingling Xiong, Tengxiang Long, Lina Su, Chao Sun, Hao Song, Pengpeng Dai, Jingui Duan, Ling Huang   +11 more
wiley   +1 more source