Results 51 to 60 of about 18,381 (288)
Study of the transformation of boehmite into alumina by Rietveld method [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 2011 Peer ...
Fillali, Laila +4 more
openaire +3 more sources
Applications of Rietveld Method in Inorganic Materials [PDF]
, 2007 利用X射线多晶衍射进行全谱拟合的Rietveld方法是材料科学中一种有效的研究方法。本文利用基于该原理设计的计算机程序GSAS和X’pertplus，结合自己的工作探索Rietveld方法在无机材料结构研究领域的一些应用，包括晶体结构精修、相变以及定量相分析。1．晶体结构精修。利用GSAS软件精修了未知结构化合物Li9Ga3(P2O7)3(PO4)2的晶体结构参数。该化合物为三方晶系，空间群为P3c1(158)，晶体学参数为：a=9.72879(13)Å，c=13.5827(3)Å
刘晓轩
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Advanced Functional Materials, EarlyView.Lithium iron phosphate (LFP) accounts for over 50% of the global cathode market, underscoring the need for efficient recycling and regeneration. We propose a dual‐salt carbothermal shock (CTS) strategy using LiI and NaI to in situ repair Li vacancies.
Yanjuan Li +7 more
wiley +1 more source
Evaluation of crystallographic ordering degree of magnetically active ions in Sr 2FeMoO 6-δ by means of the (101) X-ray peak intensity [PDF]
Modern Electronic Materials, 2019 Strontium ferromolybdate double perovskite is a promising candidate for room-temperature spintronic applications. Nevertheless, SFMO has not yet found wide application in spintronics.
Evgenij Artsiukh, Gunnar Suchaneck
doaj +3 more sources
Interplay Between Phase Evolution, Fe Migration, and Oxygen Redox in O3‐Type NaxFeyMn1−yO2 Cathodes
Advanced Functional Materials, EarlyView.Why do Na‐ion battery cathodes, that are compositionally closely related, follow different structural paths during battery operation? This work shows how Fe content controls when iron atoms migrate from their original sites. Early migration locks the layers and blocks key phase transitions, whereas delayed migration permits fuller structural ...
Morten Johansen +4 more
wiley +1 more source
Revista de Investigación de Física, 2021 The Rietveld refinement method has taken high relevance since its creation. Nowadays, it is an useful tool in many fields of industry, materials science, and technology.
Diego Alberto Flores Cano +5 more
doaj
Caracterização estrutural, térmica e óptica da liga semicondutora Ga2Se3 e da liga intermetálica CoxNb1-x amorfa produzidas por mechanical alloyiang: [dissertação] [PDF]
, 2006 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Física.Uma liga nanoestruturada Ga40Se60, foi produzida pela técnica Mechanical Alloying a partir de uma mistura de ...
Souza, Sérgio Michielon de
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Application of Ibuprofen Sodium Dihydrate for Thermochemical Energy Storage
Advanced Functional Materials, EarlyView.Ibuprofen sodium dihydrate is introduced as a durable organic salt hydrate for low‐temperature thermochemical energy storage, operating within 60°C–110°C with high energy density. At the material level, it delivers ∼99.9% cycling efficiency over 150 cycles without deliquescence, enabled by a dual energy‐storage mechanism coupling dehydration and phase ...
Kavin Chakravarthy Thangaraj +10 more
wiley +1 more source
Bulletin of the Mineral Research and ExplorationThe Rietveld method refines a theoretical line profile until it fits the measured profile using a least squares methodology. In Rietveld method, complete qualitative mineral determination, mineralchemistry, appropriate XRD analytical conditions and ...
Arif Talay, Cumhur Özcan Kiliç
doaj +1 more source
Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source