Search results for "Potassium sodium"

showing 6 items of 6 documents

Polarization and acoustic properties of barium-modified lead-free potassium–sodium niobate ceramics

2017

The publication costs of this article were covered by the Estonian Academy of Sciences and the University of Tartu.

010302 applied physicsFerroelectricsCeramicsMaterials science010308 nuclear & particles physicsGeneral EngineeringAnalytical chemistryElastic propertieschemistry.chemical_elementRelaxorsBarium01 natural scienceschemistryPotassium sodiumDielectric permittivityvisual_artPolarization0103 physical sciencesvisual_art.visual_art_medium:NATURAL SCIENCES:Physics [Research Subject Categories]CeramicPolarization (electrochemistry)Solid solutionsProceedings of the Estonian Academy of Sciences
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CCDC 1053437: Experimental Crystal Structure Determination

2016

Related Article: Tamires S. Fernandes, Ramon S. Vilela, Ana K. Valdo, Felipe T. Martins, Enrique García-España, Mario Inclán, Joan Cano, Francesc Lloret, Miguel Julve, Humberto O. Stumpf, and Danielle Cangussu|2016|Inorg.Chem.|55|2390|doi:10.1021/acs.inorgchem.5b02786

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersPotassium sodium bis(tetramethylammonium) bis(mu2-NN'-26-pyridinebis(oxamato))-di-copper hydrateExperimental 3D Coordinates
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CCDC 1996427: Experimental Crystal Structure Determination

2020

Related Article: Júlia Mayans, Constantinos C. Stoumpos, Mercé Font-Bardia, Albert Escuer|2020|Chem.-Eur.J.|26|11158|doi:10.1002/chem.202001900

Space GroupCrystallographyCrystal SystemCrystal Structurebis(triethylammonium) potassium sodium bis(tris(mu-hydroxybis(pyridin-2-yl)methanolato)-tris(mu-pyrazolato)-hexakis(mu-azido)-(mu-carbonato)-hexa-nickel(ii)) unknown solvate dihydrateCell ParametersExperimental 3D Coordinates
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CCDC 1538253: Experimental Crystal Structure Determination

2018

Related Article: Yan Duan, Juan M. Clemente-Juan, Carlos Giménez-Saiz, Eugenio Coronado|2018|Frontiers in Chemistry|6|231|doi:10.3389/fchem.2018.00231

Space GroupCrystallographyCrystal SystemCrystal Structurepotassium sodium hexa-aqua-cobalt(ii) bis(mu-phosphato)-hexakis(mu-hydroxo)-dotetracontakis(mu-oxo)-hexa-aqua-octadecaoxo-cobalt(iii)-hexa-cobalt(ii)-octadeca-tungsten nonadecahydrateCell ParametersExperimental 3D Coordinates
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Crystallization and preliminary X-ray analysis of strictosidine synthase and its complex with the substrate tryptamine

2005

Strictosidine synthase (STR1) is a central enzyme that participates in the biosynthesis of almost all plant monoterpenoid indole alkaloids. After heterologous expression in Escherichia coli, crystals of STR1 and its substrate complex with tryptamine were obtained by the hanging-drop technique at 302–304 K with potassium sodium tartrate tetrahydrate as precipitant. All crystals belong to space group R3. The native STR1 crystals diffract to 2.95 Å and have unit-cell parameters a = b = 150.3, c = 122.4 Å. The tryptamine complex crystals diffract to 2.38 Å, with unit-cell parameters a = b = 147.3, c = 122.3 Å.

TryptamineStrictosidine synthaseTetrahydratebiologyStereochemistryPotassium sodium tartrateSubstrate (chemistry)General MedicineRauwolfiaTryptamineslaw.inventionchemistry.chemical_compoundchemistryBiosynthesisStructural BiologylawCarbon-Nitrogen Lyasesbiology.proteinHeterologous expressionCrystallizationCrystallizationPlant ProteinsActa Crystallographica Section D Biological Crystallography
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The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics

2011

Lead-free potassium sodium niobate (K0.5Na0.5)NbO3 (KNN) has been prepared via conventional ceramic processing method. The influence of 0.5 wt% - 1.5 wt% MnO2 and WO3 addition on the sintering, crystallographic structure, microstructure and dielectric properties of KNN has been investigated. Optimal sintering temperatures of KNN ceramics were observed to be in the narrow interval: 1090 °C - 1110 °C for MnO2 doped KNN; 1150 °C - 1170 °C for pure KNN and doped with WO3. XRD patterns showed that all the samples have single perovskite structure with monoclinic structure. Microstructure of ceramics was changed greatly by using dopants.http://dx.doi.org/10.5755/j01.ms.17.1.251

lead-freelcsh:TN1-997sinteringMaterials scienceDopantDopingAnalytical chemistrySinteringMineralogyDielectricCrystal structureMicrostructurepotassium sodium niobatevisual_artpiezoelectric ceramicsvisual_art.visual_art_mediumoxide additivesGeneral Materials ScienceCeramiclcsh:Mining engineering. MetallurgyMonoclinic crystal systemMedžiagotyra
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