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Academic literature on the topic 'Crystalline and amorphous phase'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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Journal articles on the topic "Crystalline and amorphous phase"

Gonzáles, Sergio, P. Pérez, G. Garcés, and P. Adeva. "Effect of RE Elements and Ni Contents on the Microstructure and Mechanical Properties of Rapidly Solidified Mg Ribbons." Materials Science Forum 539-543 (March 2007): 1662–68. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1662.

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The effect of the concentration of Ni, Y and La-rich mischmetal on the thermal stability, microstructure and mechanical properties of ribbons tested in the temperature range 25-350°C have been evaluated. The low-alloyed materials were crystalline or partially crystalline while high-alloyed materials were amorphous. The amorphous alloys experienced numerous transformations during heating above 170°C. A transition in the amorphous state was observed in all alloys prior to the crystallization stage. The alloy composition determines the sequence of phase transformations during crystallization. In

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Mazumdar, Sujata. "A standardless method of quantitative ceramic analysis using X-ray powder diffraction." Journal of Applied Crystallography 32, no. 3 (1999): 381–86. http://dx.doi.org/10.1107/s0021889898012898.

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A new procedure using X-ray powder diffraction data for quantitative estimation of the crystalline as well as the amorphous phase in ceramics is described. Classification of the crystalline and amorphous X-ray scattering was achieved by comparison of the slopes at two successive points of the powder pattern at scattering angles at which the crystalline and amorphous phases superimpose. If the second slope exceeds the first by a stipulated value, the intensity is taken as crystalline; otherwise the scattering is considered as amorphous. Crystalline phase analysis is obtained by linear programmi

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Rosenfield, H. D., and R. Barton. "Pair-Density Function of Nano-Scale Morphology in Oriented Polymer Fibers: Application to Nomex Aramid." Advances in X-ray Analysis 39 (1995): 523–33. http://dx.doi.org/10.1154/s0376030800022953.

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We have developed a novel method of determining polymer fiber morphology. Analysis of pair-density functions obtained from synchrotron x-ray diffraction patterns with scattering vectors lying in the meridional direction and equatorial plane allows for the determination of crystallite dimensions, volume fractions of crystalline and amorphous phases, and the probability distribution of crystallite c axis orientation relative to the fiber axis. This method is independent of details regarding the structure of the amorphous phase, and may be successfully applied to both highly crystalline and poorl

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Gotoh, Tamihiro. "Effect of annealing on carrier concentration in Ge2Sb2Te5 films." Canadian Journal of Physics 92, no. 7/8 (2014): 681–83. http://dx.doi.org/10.1139/cjp-2013-0583.

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Carrier concentration of phase change materials is a critical parameter that determines electrical resistivity in amorphous and crystalline states. To obtain insights into carrier concentration of amorphous and face centered cubic (fcc) crystalline Ge2Sb2Te5, the Seebeck coefficients of as-deposited and thermal annealed Ge2Sb2Te5 films were evaluated from thermopower measurements. All the samples show p-type conduction. The Seebeck coefficients of amorphous and fcc crystalline phase were +0.89 and +0.028 mV/K, which correspond to carrier concentrations of ∼1016 and ∼1020 cm−3, respectively. Ca

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Uehara, Hiroki, Masaki Kakiage, Hidekazu Tanaka, and Takeshi Yamanobe. "In Situ SAXS Analysis during Uniaxial Drawing of Polyethylene-block-Polystyrene Copolymer Film." Key Engineering Materials 596 (December 2013): 50–54. http://dx.doi.org/10.4028/www.scientific.net/kem.596.50.

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Structural deformation during uniaxial drawing of polyethylene-block-polystyrene (PE-b-PS) copolymer film was analyzed by in-situ small angle X-ray scattering (SAXS) measurement. The PE-b-PS film was prepared by solution casting, followed by isothermally crystallizing from melt. The obtained film exhibits the characteristic bicontinuous crystalline/amorphous morphology. Initial stage of uniaxial drawing induces the orientation of such crystalline/amorphous phases, but these phase separation is destroyed in the latter stage. In contrast, solvent swelling treatment successfully induces the orien

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Snyders, C. D., E. E. Ferg, and D. Billing. "An investigation into the temperature phase transitions of synthesized materials with Al- and Mg-doped lithium manganese oxide spinels by in situ powder X-ray diffraction." Powder Diffraction 32, no. 1 (2016): 23–30. http://dx.doi.org/10.1017/s088571561600066x.

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Three spinel materials were prepared and characterized by in situ powder X-ray diffraction (PXRD) techniques to track their phase changes that occurred in the typical batch synthesis process from a sol–gel mixture to the final crystalline spinel oxide. The materials were also characterized by thermal gravimetric analysis, whereby the materials decomposition mechanisms that were observed as the precursor, was gradually heated to the final oxide. The results showed that all the materials achieved their total weight loss at about 400 °C. The in situ PXRD analysis showed the progression of the pha

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Christan C, Seraph, Mary Lukose, Karthikeyan Vijayan, Riya Alice B. John, and S. P. Vijayachamundeeswari. "Amorphous vs. crystalline Al₂O₃ nanoparticles: a comparative study in photocatalytic dye degradation." Nanomaterials and Energy 13, no. 4 (2024): 1–19. http://dx.doi.org/10.1680/jnaen.23.00106.

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This study focuses on the synthesis of aluminum oxide (Al2O3) nanoparticles and compares their amorphous and crystalline phases, emphasizing their suitability for photocatalytic dye degradation. The as-prepared Al2O3, synthesized using the sol-gel technique is found to have an amorphous nature which is later annealed at 1200°C to obtain its α phase of crystalline nature. Despite the widespread applications of aluminum oxide in various fields, the differences between its amorphous and crystalline phases are not well understood. This work bridges this gap by evaluating the amorphous and crystall

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An, Ji-Hun, Changjin Lim, Alice Kiyonga, et al. "Co-Amorphous Screening for the Solubility Enhancement of Poorly Water-Soluble Mirabegron and Investigation of Their Intermolecular Interactions and Dissolution Behaviors." Pharmaceutics 10, no. 3 (2018): 149. http://dx.doi.org/10.3390/pharmaceutics10030149.

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In the present study, the screening of Mirabegron (MBR) co-amorphous was performed to produce water-soluble and thermodynamically stable MBR co-amorphous with the purpose of overcoming the water solubility problem of MBR. MBR is Biopharmaceutics Classification System (BCS) class II drug used for the treatment of an overreactive bladder. The co-amorphous screening was carried out by means of the vacuum evaporation crystallization technique in methanol solvent using three water-soluble carboxylic acids, characterized by a pKa difference greater than 3 with MBR such as fumaric acid (FA), l-pyrogl

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Ranganathan, Srinivasa, and C. Suryanarayana. "Amorphous to Crystalline Phase Transformations." Materials Science Forum 3 (January 1985): 173–85. http://dx.doi.org/10.4028/www.scientific.net/msf.3.173.

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Suherman, Phe Man, Arie van Riessen, Brian O’Connor, Deyu Li, Dick Bolton, and Hans Fairhurst. "Determination of amorphous phase levels in Portland cement clinker." Powder Diffraction 17, no. 3 (2002): 178–85. http://dx.doi.org/10.1154/1.1471518.

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The existence of glass or amorphous component in Portland cement clinker has been questioned for a long time. However, besides the crystalline phases, there are reports in the literature of noncrystalline material in cement clinker, which is considered to be the residue of the melt that has failed to crystallize. Absolute phase abundances were determined in this study by Rietveld refinements with laboratory X-ray data, using both internal and external phase composition standards. The results clearly demonstrate the existence of an amorphous component in Portland cement clinker. The presence of

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Dissertations / Theses on the topic "Crystalline and amorphous phase"

Isaeva, Leyla. "Amorphous and crystalline functional materials from first principles." Doctoral thesis, Uppsala universitet, Materialteori, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-260704.

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This thesis deals with various functional materials from first-principles methods and is divided into two major parts according to the underlying atomic structure of the system under study. The first part of the thesis deals with the temperature-induced structural phase transitions in metallic β'-AuZn and perovskite oxide LiOsO3. The former one, i.e. binary AuZn, belongs to a class of shape-memory alloys that regain their initial shape due to a reversible martensitic phase transformation. Here, by means of density functional and density functional perturbation theories, we show that the marte

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Kim, Min Su. "Liquid Crystalline Amorphous Blue Phase: Tangled Topological Defects, Polymer-stabilization, and Device Application." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448894363.

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Schoen, David Taylor. "Hardness variation and cyclic crystalline-amorphous phase transformation in CuZr alloy during ball milling." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32837.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2005. Includes bibliographical references (leaf 41). The hardness and percent crystallinity of Cu33Zr67 powder samples are measured through several cycles of a cyclic phase transformation during ball milling. Each are found to cycle with a period of approximately 320 minutes. Although significant chemical contamination was found in the milled specimens, the results shed some light on mechanical alloying theory and favor interpreting mechanical alloying as a driven alloys process. by David

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Dittrich, Sebastian [Verfasser], and Jürgen [Akademischer Betreuer] Neubauer. "Quantitative Phase Development of crystalline, nano-crystalline and amorphous phases during hydration of OPC blended with siliceous fly ash / Sebastian Dittrich. Gutachter: Jürgen Neubauer." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/1080031014/34.

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Hussein, Naji. "Enhancement of the mechanical performance of semi-crystalline polyamides by tailoring the intermolecular interaction in the amorphous phase." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0140/document.

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L’utilisation du Polyamide 66 dans l’industrie automobile est en forte croissance car il offre à un bon compromis légèreté/propriétés mécaniques pour les applications de structure. A noter que pendant le service d’un véhicule, les pièces en polyamides sont souvent soumises à des sollicitations mécaniques très sévères aboutissant à une dégradation progressive du matériau. Récemment. E. Mourglia-Seignobos (thèse 2009), a montré que l’endommagement du polyamide 66 implique des mécanismes de cavitation et de microcraquelure dans la phase amorphe. Afin d'améliorer la durabilité de ce matériau, nous

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Погребняк, Олександр Дмитрович, Александр Дмитриевич Погребняк, Oleksandr Dmytrovych Pohrebniak, et al. "Structure, Properties and Element Composition of Alumina Coatings, Obtained by Micro-Arc Oxidation Method." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34914.

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Coatings of aluminium oxide Al2O3 were obtained by micro-arc oxidation under different conditions of deposition. They were analysed by such methods as: positron annihilation spectroscopy (PAS), Rutherford backscattering (RBS), X-ray diffraction (XRD) and scanning electron microscopy with microanalysis (SEM with EDS). Investigated samples showed good adhesion to the substrate, low concentration of nanopores in the bulk. Content of amorphous phase in the coating was about 20 vol.%, and metastable -Al2O3 - Al2O3 phases about less than 10 vol.%. It was demonstrated that by varying of paramete

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Tanaka, Masakazu. "Molecular orientation distributions in the crystalline and amorphous phases of polymers determined by polarised raman spectroscopy." Thesis, University of Manchester, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516298.

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Qoku, Elsa [Verfasser], Thomas [Gutachter] Bier, Thomas [Akademischer Betreuer] Bier, and Herbert [Gutachter] Pöllmann. "Characterization and quantification of crystalline and amorphous phase assemblage in ternary binders during hydration / Elsa Qoku ; Gutachter: Thomas Bier, Herbert Pöllmann ; Betreuer: Thomas Bier." Freiberg : Technische Universität Bergakademie Freiberg, 2019. http://d-nb.info/1220636495/34.

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Shanmugam, Janaki. "Correlation of optical anisotropy with structural changes in Ge2Sb2Te5." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:8cee7355-0ff6-4939-a606-a406c7a9823d.

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Ge2Sb2Te5 (GST) is an established phase-change material that undergoes fast reversible transitions between amorphous and crystalline states with a high electro-optical contrast, enabling applications in non-volatile optical and electronic memories and optically-switchable structured metamaterials. This work demonstrates that optical anisotropy can be induced and recorded in pure and doped GST thin films using circularly polarised light (CPL), opening up the possibility of controlled induction of anisotropic phase transition in these and related materials for op

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Muller, Theophillus Frederic George. "Optical modeling of amorphous and metal induced crystallized silicon with an effective medium approximation." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3788_1297758783.

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In this thesis we report on the metal-mediated-thermally induced changes of the structural and optical properties of hydrogenated amorphous silicon deposited by hot-wire CVD, where aluminium and nickel were used to induce crystallization. The metal-coated amorphous silicon was subjected to a thermal annealing regime of between 150 and 520&deg C. The structural measurements, obtained by Raman spectroscopy, show partial crystallization occurring at 350 &deg C. At the higher annealing temperatures of 450&deg C and 520&deg C complete crystallization occurs. Reflection and transmissi

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Books on the topic "Crystalline and amorphous phase"

Šesták, Jaroslav, Jiří J. Mareš, and Pavel Hubík, eds. Glassy, Amorphous and Nano-Crystalline Materials. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-2882-2.

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Rahman, Mahmud M., Cary Y. W. Yang, and Gary L. Harris, eds. Amorphous and Crystalline Silicon Carbide II. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-75048-9.

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Yang, Cary Y., M. Mahmudur Rahman, and Gary L. Harris, eds. Amorphous and Crystalline Silicon Carbide IV. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84804-9.

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Harris, Gary L., Michael G. Spencer, and Cary Y. W. Yang, eds. Amorphous and Crystalline Silicon Carbide III. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84402-7.

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Adachi, Sadao. Optical Properties of Crystalline and Amorphous Semiconductors. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5241-3.

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Adachi, Sadao. Optical Constants of Crystalline and Amorphous Semiconductors. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5247-5.

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Esquinazi, Pablo, ed. Tunneling Systems in Amorphous and Crystalline Solids. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03695-2.

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Fahrner, Wolfgang Rainer, ed. Amorphous Silicon / Crystalline Silicon Heterojunction Solar Cells. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37039-7.

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Harris, Suzanne W. Positive muons in crystalline and amorphous solids. S. Harris, 1991.

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Pablo, Esquinazi, ed. Tunneling systems in amorphous and crystalline solids. Springer, 1998.

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Book chapters on the topic "Crystalline and amorphous phase"

Ielmini, Daniele. "Electrical Transport in Crystalline and Amorphous Chalcogenide." In Phase Change Memory. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-69053-7_2.

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Jackson, K. H., E. W. Jones, and G. L. Harris. "Phase Matched Second Harmonic Conversion in β-SiC." In Amorphous and Crystalline Silicon Carbide and Related Materials. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-93406-3_16.

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Taylor, M. G., and K. Simkiss. "Amorphous and Crystalline Phases in Biominerals." In Mechanisms and Phylogeny of Mineralization in Biological Systems. Springer Japan, 1991. http://dx.doi.org/10.1007/978-4-431-68132-8_65.

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Raty, Jean-Yves, Céline Otjacques, Rengin Peköz, Vincenzo Lordi, and Christophe Bichara. "Amorphous Phase Change Materials: Structure, Stability and Relation with Their Crystalline Phase." In Molecular Dynamics Simulations of Disordered Materials. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15675-0_18.

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Pompe, W., H. J. Scheibe, G. Kessler, A. Richter, and H. J. Weiss. "Laser Induced Phase Transformation and Vapour Deposition of Amorphous and Crystalline Carbon Phases." In Trends in Quantum Electronics. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-662-10624-2_23.

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Baño-Morales, Daysi, Andrea Fernández-Gorgojo, and Antonio Vizán-Idiope. "Influence of Injection Molding Parameters on the Orientation of Polypropylene Lamellar Structures Using Wide-Angle X-ray Scattering (WAXS) Technique." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_45.

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Abstract The optimization of injection molding process variables is important to minimize the number of final parts with defects, the cost and injection time. Among all the defects, shrinkage stands out for its important impact, since it causes the injected part to undergo dimensional changes during the cooling and post-processing stage. One of the factors influencing shrinkage is molecular orientation, as the injection phase imparts a predominant orientation to the polymer chains due to flow. This study presents the influence of polymer flow along the part on molecular orientation by varying

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Dexheimer, S. L., C. P. Zhang, J. Liu, et al. "Phase-Dependent Ultrafast Carrier and Lattice Relaxation: Amorphous, Crystalline, and Nanocrystalline Silicon." In Ultrafast Phenomena XIII. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59319-2_118.

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Rickman, Hans, Claude Froeschlé, and Jürgen Klinger. "Amorphous-Crystalline Phase Transition and the Light Curve of Comet P/Halley." In Ices in the Solar System. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5418-2_28.

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Dietrich, C. H. "Photo Structural Phase Transitions in Amorphous Chalcogenides:Basic Principles and Applications in Holography and Optical Information Processing." In Physics and Applications of Non-Crystalline Semiconductors in Optoelectronics. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5496-3_7.

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Navrotsky, Alexandra. "Thermochemistry of Crystalline and Amorphous Phases Related to Radioactive Waste." In Actinides and the Environment. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-0615-5_17.

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Conference papers on the topic "Crystalline and amorphous phase"

Jindal, Rinkel, VS Raja, MA Gibson, and CR Hutchinson. "The Effect of Crystallization State on the Corrosion Behaviour of Al-Ni-Y Glassy Alloys." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01158.

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Abstract Al-Ni-Y alloys processed through the amorphous state exhibit significant improvements in strength over conventional crystalline Al Alloys. As such, they may offer some promise in high-strength, weight critical applications such as aerospace if their other property combinations are acceptable. However, amorphous metals are highly non-equilibrium and the issues associated with their thermal stability have stimulated considerable interest, especially in terms of the effects of any partial crystallization on their properties. In this work, the influence of controlled states of crystalliza

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Kan, A. T., A. J. Gerbino, J. E. Oddo, and M. B. Tomson. "A Mechanistic Interpretation of the Precipitation and Dissolution of Divalent Metal Phosphonate." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93459.

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Abstract An electrostatic model is developed to model the pH, temperature, and ionic strength dependence of phosphonate ionization and complex formation. Using the approach, two calcium phosphonate precipitates have been studied. The initial calcium phosphonate phase formed is an amorphous material. Using a dialysis process, the amorphous solid gradually transforms into a crystalline solid via removal of phosphonate. The solubility product of the amorphous phase is 10−49.4. The crystalline material is three orders' magnitudes less soluble than the amorphous phase. The pH, temperature, and ioni

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Raman, A., and B. Kuban. "Infrared Spectroscopic Analysis of Phase Transformation Processes in Rust Layers Formed on Weathering Steels in Bridge Spans." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87424.

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Abstract Infrared spectroscopy was used to study the formation and transformation of rust phases and the weathering characteristics of ASTM A588 weathering steels in bridge spans. The technique enables not only clear differentiation between various rust phases, but also detects various forms of amorphous and not well crystallized rust phases with clarity. Starting from the amorphous mix, a mixture of γ-, δ-FeOOH and ferrihydrite in their highly amorphous forms, the rusting proceeds through the formation first of γ-FeOOH or ferrihydrite, depending on atmospheric conditions, evolution of amorpho

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Fowler, Alex J., and Mehmet Toner. "Cryopreservation of Cells Using Ultra-Rapid Freezing." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1332.

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Abstract This paper reports on the development of a new cryopreservation protocol that uses laser warming and liquid nitrogen cooling to establish extreme temperature gradients that lead to cooling rates of greater than 106 K per second. Experiments using short laser pulses demonstrate that these cooling rates lead to the creation of clear ice regions consistent with the creation of amorphous ice. Differential thermal analysis of the clear ice regions proves that they do consist of substantial portions of amorphous ice. It is believed that freezing cells in a non-crystalline ice will lead to s

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Veleva, L. "Phase Transformation of Iron Hydroxide in the Corrosion Products Formed in Humid Tropical Climate." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03602.

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Abstract The results of a study of corrosion products composition and morphology during the initial stages of rust formation on low carbon steel was carried out in a tropical humid climate (marine-coastal and rural-urban test sites, located in the Gulf of Mexico, in Southeastern Mexico) are presented. Data obtained in this study, by means of SEM and X-ray diffraction, show that the specifics of the Temperature – Relative Humidity daily complex have a significant influence on γ-FeOOH (goethite) and α-FeOOH (lepidocrocite) phases formation. The SEM reveals several steps in rust morphological evo

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Singh, P., G. T. Galyon, J. H. Dorler, J. Zahavi, and R. Ronkese. "Potentiodynamic Polarization Measurements for Predicting Pitting of Copper in Cooling Waters." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92212.

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Abstract The usefulness of potentiodynamic polarization measurements for predicting pitting corrosion of copper alloy C12200 was evaluated using water samples from nine cooling systems with known corrosion histories. The shape of the cyclic polarization curve was found to be a reliable indicator of the propensity of cooling waters to pit copper alloy C12200. Non pitting waters resulted in curves with either counter-clockwise loops or clockwise loops with high repassivation potentials. Pitting waters resulted in clockwise loops with low repassivation potentials. Observation of an amorphous to c

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Morávek, Tomáš, Eduardo Serralta, Lukáš Hladík, Narendraraj Chandran, Daniel Němeček, and Robert Stroud. "Advancing Quantitative Failure Analysis and Strain Measurements at the Nanoscale by Using Scanning Electron Diffraction Microscopy Enhanced by Beam Precession." In ISTFA 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.istfa2024p0434.

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Abstract The role of scanning transmission electron microscopy (STEM) in failure analysis has been growing since the introduction of advanced technology nodes (10-nm and beyond), in which transistors (FinFET and nanosheets) have become much smaller and more complex. Four-dimensional scanning transmission electron microscopy (4D-STEM) is a new electron diffraction technique that expands conventional STEM imaging and EDX mapping to enable phase and orientation mapping of crystalline and amorphous phases in deposited thin films at the nanometer resolution. The enhancement of electron diffraction

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Bordun, Ihor, Myroslav Malovanyy, Nazar Nahurskyi, and Anatoliy Borysiuk. "Synthesis, Structure and Magnetic Properties of Carbon Composites Based on Finely Dispersed Powders of Different Valence Iron Oxides." In 8th International Congress "Environment Protection. Energy Saving. Sustainable Environmental Management". Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-09oeek.

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A method for the synthesizing of carbon composites based on hydrolysis lignin powders and iron oxides (FeO and Fe₂O₃) was proposed in this work. The obtained composites were studied by X-ray diffractometry, adsorption/desorption gas porometry and magnetometry. X-ray phase analysis has revealed the presence of an amorphous carbon phase and crystalline phases of FeO, Fe3O4, Fe2O3, and Fe in both types of synthesised composites. The synthesized composites demonstrated significantly higher specific magnetisation values compared to the initial iron oxide powders. For Fe₂O₃ powder, the specific magn

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Oddo, J. E., J. M. Reizer, C. D. Sitz, D. E. A. Setia, C. J. Hinrichsen, and W. Sujana. "A Comprehensive Field and Laboratory Study of Scale Control and Scale Squeezes in Sumatra, Indonesia." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99115.

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Abstract Scale squeezes were performed on thirteen wells in the Duri Field, Sumatra. At the time the squeezes were completed, seven were designed to be ‘Acid Squeezes’ and six were designed to be ‘Neutral Squeezes.’ In the course of preparing for the scale squeezes, produced waters were collected and analyzed. In addition, scale inhibitor evaluations, and inhibitor compatibility studies were completed. Simulated squeezes were done in the laboratory to predict field performance. The methodologies and results of the background work are reported. In addition, the relative effectiveness of the two

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Abraham, D. P., N. L. Dietz, and N. Finnegan. "Characterization of Oxidation Products on a ZrFe2-Type Laves Intermetallic Exposed to 200°C Steam." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01139.

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Abstract The release of radioactive elements from the stainless steel-15 wt% zirconium (SS-15Zr) metal waste form will be governed by the corrosion behavior of ZrFe2-type intermetallics phases present in the alloy. In this article, oxidation products that formed on a ZrFe2-type intermetallic sample exposed to 200°C steam were characterized by Auger Electron Spectroscopy (AES) and Transmission Electron Microscopy (TEM). The data revealed two oxide layers on the sample surface: an outer crystalline iron-oxide layer and an inner amorphous zirconium-rich layer believed to be zirconium oxide. Therm

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Reports on the topic "Crystalline and amorphous phase"

Reed, B., N. Browning, M. Santala, et al. Fundamental Mechanisms Driving the Amorphous to Crystalline Phase Transformation. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1018817.

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Courtney, T. H. Structure, Properties, and Processing of Two-Phase Crystalline-Amorphous W-Based Alloys. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada384294.

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Lee, S. M., and K. Barmak. Amorphous/crystalline structure and phase transformations in metastable semiconducting Ge{sub 1{minus}x}Sn{sub x}. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10124547.

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Lam, N. Q., P. R. Okamoto, R. Devanathan, and M. Meshii. A unified description of crystalline-to-amorphous transitions. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/32513.

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Carter, C. B. Crystalline-amorphous interfaces and their relation to grain boundary films. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5738322.

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Rice, Jane K. Particle Size and Surface Area Analysis of Amorphous and Crystalline Boron. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada333346.

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Dong, W., A. N. Mansour, and B. Dunn. Structural and Electrochemical Properties of Amorphous and Crystalline Molybdenum Oxide Aerogels. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada389738.

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Anagnostopoulos, K. N., M. J. Bowick, and S. M. Catterall. The phase diagram of crystalline surfaces. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/176799.

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Shan, X., H. Ha, and J. Payer. Comparison of Crevice Corrosion of Fe-Based Amorphous Metal and Crystalline Ni-Cr-Mo Alloy. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/945861.

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Jantzen, C. M. Crystalline Phase Separation in Phosphate Containing Waste Glasses: Relevance to INEEL HAW. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/763274.

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