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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 401 to 410 of 1557 (0.087 seconds)Spelling suggestions: "subject:"X yay diffraction"" "subject:"X aay diffraction""
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SYNTHESIS, SINTERING, AND ELECTRONIC CONDUCTIVITY STUDIES OF MEDIUM- AND HIGH-ENTROPY PEROVSKITE OXIDESGajjala, Sai Ram 01 May 2023 (has links) (PDF)
The application of the entropy concept to stabilize oxide systems opens the possibility of discovering new materials with unique structural and functional properties. High-entropy alloys and oxides, which are based on the entropy stabilization concept and composed of multi-principal elements, have the potential to tailor structural and functional properties to meet specific needs. The study of lanthanum-based perovskite materials that benefit from the entropy stabilization approach is a promising area of research.However, the inherent randomness of multi-principal elements presents new challenges, making it difficult to predict their behavior. To understand these difficulties, we have initiated a methodical investigation of La-based medium- and high-entropy perovskite oxides. This study focuses on the synthesis, characterization, sintering mechanism, and electrical conductivity properties of nine La1-xCax(A1/3, B1/3, C1/3)O3 medium-entropy perovskite oxide systems (A, B, and C = three combination of Cr or Co or Fe or Ni or Mn) and one La1-xCax(Cr0.2Co0.2Fe0.2Ni0.2Mn0.2)O3 high-entropy perovskite oxide system (for x = 0.1 to 0.3). This research aims to provide better understanding of: (1) synthesis process, (2) temperature of single-phase formation, (3) the impact of various combinations of multiple B-site transitional elements and Ca doping on crystal structure, and microstructure (4) sintering mechanism and (5) electrical conductivity properties.
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| 402 |
Liquid crystalline behavior of mesogens formed by anomalous hydrogen bondingJEONG, SEUNG YEON 24 June 2011 (has links)
No description available.
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| 403 |
Formation of Precursor Calcium Phosphate Phases During Crystal Growth of Apatite and Their Role on the Sequestration of Heavy Metals and RadionuclidesBorkiewicz, Olaf J. 13 December 2010 (has links)
No description available.
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| 404 |
The Effect of Chloride and Sulfate on the Mineralogy and Morphology of Synthetically Precipitated Copper SolidsMelton, Lisa Nicole January 2013 (has links)
No description available.
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| 405 |
X-ray Scattering Study of the Strain In Annealed SilicaSrour, Mohammed R. 12 June 2014 (has links)
No description available.
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| 406 |
The Lattice Parameter of Gamma Iron and Iron-Chromium AlloysFeng, Zhiyao 03 June 2015 (has links)
No description available.
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| 407 |
AN EXPERIMENTAL STUDY OF MAGNETIC AND STRUCTURAL PHASE TRANSITIONS AND ASSOCIATED PHENOMENA IN SELECTED NI-MN-DERIVATIVE HEUSLER ALLOYSBrock, Jeffrey Adams 31 July 2017 (has links)
No description available.
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| 408 |
SYNTHESIS AND CHARACTERIZATION OF NEODYMIUM SULFIDE BULK SAMPLES AND THIN FILMSTHACHERY, JUGUL RAVINDRAN 11 March 2002 (has links)
No description available.
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| 409 |
Environment and Human Response at Newark's Great CircleCulver, Emily G. 26 September 2011 (has links)
No description available.
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| 410 |
The Synthesis and Characterization of Imidazolium Lithium PhthalocyaninesKelley, John J. 26 September 2008 (has links)
No description available.
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