Results 101 to 110 of about 17,786 (291)

MAUD Rietveld Refinement Software for Neutron Diffraction Texture Studies of Single‑ and Dual‑Phase Materials. [PDF]

Integr Mater Manuf Innov, 2021
Saville AI, Creuziger A, Mitchell EB, Vogel SC, Benzing JT, Klemm-Toole J, Clarke KD, Clarke AJ.   +7 more
europepmc   +1 more source

Phase‐Resolved Defect Transport Mechanisms Governing Asynchronous Ordering in a Eutectic High‐Entropy Alloy

Advanced Science, EarlyView.
Phase‐resolved experiments and atomistic simulations reveal asynchronous ordering behaviors in a eutectic high‐entropy alloy during isothermal annealing. Distinct defect transport mechanisms are identified in coexisting B2 and BCC phases, showing that vacancy and interstitial mediated diffusion governs phase‐dependent thermal stability.
Huiwen Yao, Qingshuang Ma, Jie Xiong, Jing Bai, Huijun Li, Qiuzhi Gao   +5 more
wiley   +1 more source

Obtaining models suitable for Rietveld refinement: the EXPO2011 techniques

, 2011
Rietveld refinement succeeds if the model is sufficiently close to the target structure. Severe distortions in the structural parameters or relatively high percentage of missed atoms do not allow the refinement to converge.
Angela Altomare, Carmelo Giacovazzo, Anna Grazia Giuseppina Moliterni, Rosanna Rizzi, Corrado Cuocci   +4 more
core   +1 more source

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Rietveld refinement of disordered illite-smectite mixed-layer structures by a recursive algorithm. I : One-dimensional patterns

, 2012
X-ray diffraction patterns of oriented mounts of clay minerals are often used in clay mineralogy for qualitative and quantitative purposes. Fequently occurring stacking defects, in particular, can be characterized by this technique.
Kleeberg, Reinhard, Ufer, Kristian, Dohrmann, Reiner, Bergmann, Jörg   +3 more
core   +1 more source

Outstanding TC Enhancement in 5d–3d Y2NiIrO6 by Compression

Advanced Science, EarlyView.
Double perovskite Y2NiIrO6 with half filed 3d eg–5d t2g configuration, exhibits first experimental example of pressure‐enhanced magnetic interaction in iridate and iridate‐related systems. Its Curie temperature increase from 192 to 243 K at 17 GPa. Herein, the orthogonal eg–t2g pathway remains robust even under compression‐induced lattice distortion ...
Zheng Deng, Yao Zhang, Sijia Zhang, Jing Song, Wanli He, Yuanzhe Li, Meilin Jin, Xiang Li, Guanghua Liu, Zhen Dong, Jingkai Bi, Wenmin Li, Jianfa Zhao, Jun Zhang, Yi Peng, Luchuan Shi, Junling Meng, Xiancheng Wang, Changqing Jin   +18 more
wiley   +1 more source

Wide Temperature Zero Thermal Expansion in Al Matrix Composites with High Thermal Conductivity

Advanced Science, EarlyView.
Strain engineering strategy is implemented on the negative thermal expansion (NTE) phase Zn1.6Mg0.4P2O7 within composites, where Al matrix‐induced compressive strain drives uniform polyhedral and unit cell evolution, thereby enabling broad and consistent thermal compensation efficacy and obtaining good thermal performance.
Jinrui Qian, Feixiang Long, Yiqing Liu, Longlong Fan, Mingqing Liao, Qilong Gao, Hao Lu, Dexiang Gao, Le Kang, Yuzhu Song, Xiuzhu Han, Yue Sun, Naike Shi, Chang Zhou, Jun Chen   +14 more
wiley   +1 more source

Synthesis and Rietveld refinement of MeMOF-74 [PDF]

Acta Crystallographica Section A Foundations and Advances, 2021
Juliana Assunção Pereira de Figueiredo, Gabriel Galvani, João Alves, Laise Amorim, Maximiliano Zapata, Carlos Pinheiro   +5 more
openaire   +1 more source

Multifaceted Roles of Tantalum in Promoting the Thermoelectric Performance of Mg3(Sb,Bi)2 Based Materials

Advanced Science, EarlyView.
A multifunctional tantalum incorporation strategy enables simultaneous tuning of carrier concentration, mitigation of grain‐boundary scattering, and enhanced phonon scattering in Mg3(Sb,Bi)2. These synergistic effects markedly improve carrier mobility and suppress lattice thermal conductivity, yielding both high material zT and high module conversion ...
Guangmeng You, Jingdan Lei, Kai Xu, Yuntian Fu, Xueke Gu, Chengxiao Peng, Zhen Wang, Jing Chen, Kunpeng Zhao, Chao Wang   +9 more
wiley   +1 more source

Rietveld Refinement in the Characterization of Crystalline Materials [PDF]

, 2019
This Special Issue serves as a crystallographic forum covering various aspects of material science that have in common the use of the powerful Rietveld method in the analysis of the powder XRD patterns of investigated compounds.
openaire   +3 more sources