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Rozprawy doktorskie na temat „Physical Properties of Bronze Powder”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Brown, Dawn Gayatri. "Physical characterisation of a commercial magnesium stearate powder." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307588.

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Helmi, Masdar. "Thermo-physical properties and high-temperature durability of reactive powder concrete (RPC)." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33991/.

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The popular use of concrete, particularly in the construction industry, has continually challenged researchers to advance its performance to new levels. Research in this area has led to substantial ideas of reactive powder concrete (RPC) which is developed by controlling three main variables: composition, pressure during setting period, and post-set heat curing. A growing community of research has emerged to define the physical and mechanical properties of RPC, but to date few have focussed on the high temperature behaviour and aging effects after exposure to fireand that influence the durabil

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Lafferty, Ian. "The effect of crystallisation variables on the powder characteristics, mechanical properties and compression behaviour of dextrose." Thesis, De Montfort University, 1998. http://hdl.handle.net/2086/4185.

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Nethavhanani, Takalani. "Synthesis of zinc oxide nanoparticles by a green process and the investigation of their physical properties." University of the Western Cape, 2017. http://hdl.handle.net/11394/6295.

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Magister Scientiae - MSc (Physics)<br>Zinc oxide (ZnO) is a wide and direct semiconductor with a wurtzite crystal structure. Its multifunctionality as the ideal candidate in applications such as blue-UV light emitting diodes, transparent conducting oxide, selective gas sensor and efficient catalyst support among others, has attracted a significant interest worldwide. Nano-scaled ZnO has been synthesized in a plethora of shapes. A rich variety of physical and chemical methodologies have been used in the synthesis of undoped or doped ZnO. However, such methods either necessitate relatively

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Gorley, Michael. "Powder processing of oxide dispersion strengthened steels for nuclear applications." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:6a3f2843-d87d-45b8-8c41-676220412813.

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Ferritic ODS steels show improved high temperature strength and irradiation tolerance compared with conventional ferritic steels, and are one of the key potential materials for fusion blanket structural applications. The processing of ODS steels is critical to their subsequent performance; however knowledge of the optimum processing approaches for these alloys is not complete. The microstructural evolution of ODS steels containing Y<sub>2</sub>O<sub>3</sub> and other additions during manufacture has been investigated and the processing conditions optimised based on microstructural and mechanic

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6

Erasmus, Bettie van der Walt. "Evaluation and comparison of the physical properties and drug release characteristics of directly compressible lactose–based filler/binders / Bettie van der Walt Erasmus (Alta)." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4922.

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Direct compression has gained significant interest since its advent in the late 1950's due to its potential ease compared to wet granulation. The primary prerequisites for powders used in direct compression are (i) good flow properties (ii) good compressibility and (iii) an acceptable dilution potential to accommodate a relative high percentage of active ingredient. Several filler/binders have been manufactured especially for direct compression and co–processing is one of the recent methods used to produce good compressible excipients with acceptable flow properties. In this study, lactose–bas

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COSENTINO, IVANA C. "Preparacao e condutividade eletrica de eletrolitos solidos de toria-itria." reponame:Repositório Institucional do IPEN, 1997. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10492.

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Made available in DSpace on 2014-10-09T12:41:05Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:09:15Z (GMT). No. of bitstreams: 1 04687.pdf: 7600406 bytes, checksum: 7fc9c77439b889fea7b339da3aea0adb (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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COSTA, FRANCINE A. da. "Sintese e sinterizacao de pos compositos do sistema W-Cu." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11176.

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Made available in DSpace on 2014-10-09T12:49:13Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:57:43Z (GMT). No. of bitstreams: 1 09808.pdf: 15249724 bytes, checksum: 28b6b5cf9f351da89e42817bc182390d (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP<br>FAPESP:00/00255-9

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Bright, Andrew G. "Mechanistic Insights into the Stabilisation of Biopharmaceuticals using Glycine Derivatives. The Effect of Glycine Derivatives on the Crystallisation, Physical Properties and Behaviour of Commonly used Excipients to Stabilise Antigens, Adjuvants and Proteins in the Solid State." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/15943.

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This dissertation has focused on studying the effect of four glycine derivatives on the solid state properties of mannitol, glycine, and sucrose when freeze dried into blended mixtures. The primary goal was to assess their value for use in the stabilisation of vaccines in the solid state, by examining key physical and chemical characteristics, which have been documented to be beneficial to the stabilisation of biopharmaceutical formulations. The novel excipients; dimethyl glycine, and trimethyl glycine, were shown to retard the crystallisation and increase the overall glass transition temperat

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Oliveira, Ludmilla de Carvalho 1985. "Antioxidant properties and physical, sensory and nutritional characteristics of extruded corn-based breakfast cereal elaborated with whole grain wheat flour and jabuticaba (Myrciaria cauliflora) peel powder : Propriedades antioxidantes e características físicas, sensoriais e nutricionais de cereal matinal extrusado elaborado com farinha de trigo de grão inteiro e casca de jabuticaba (Myrciaria cauliflora) em." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256006.

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Orientador: Caroline Joy Steel<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-27T18:47:28Z (GMT). No. of bitstreams: 1 Oliveira_LudmilladeCarvalho_D.pdf: 4865375 bytes, checksum: 73dc548b6d536c7264c1a2ae53507e5e (MD5) Previous issue date: 2015<br>Resumo: A extrusão é a principal tecnologia utilizada na obtenção de cereal matinal ready-to-eat (RTE), sendo o amido o principal constituinte estrutural. O processo ocorre sob condições de alta temperatura, alta pressão, baixa umidade e cisalhamento. Atentos à cre

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11

Nadouf, Mohammed. "Synthese et etude de poudres submicroniques de titanate de baryum et de ses solutions solides avec le strontium." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13129.

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On etudie les solutions solides entre titanate de baryum et titanate de strontium. Deux methodes de synthese de ces perovskites sont abordees : la methode ceramique classique, ou l'on fait reagir des solides a haute temperature, et la methode oxalique qui fait intervenir la preparation d'un sel mixte que l'on decompose a basse temperature. Les relations entre la nature des sels des oxydes, le ph de precipitation, la temperature de reaction ou de precipitation et les caracteristiques structurales et proprietes physiques des ceramiques frittees sont etudiees

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12

Rezrazi, El Mustafa. "Obtention par voie électrochimique et étude de quelques propriétés électrochromes de l'oxyde de tungstène WO3." Besançon, 1987. http://www.theses.fr/1987BESA2004.

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Preparation des couches electrochromes de wo::(3) par oxydation anodique sous courant pulse. Caracteristiques electrooptiques. Proprietes thermodynamiques des bronzes h::(x)wo::(3) et li::(x)wo::(3) responsables du phenomene coloration-decoloration

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13

El, Hadigui Saïd. "Etude physico-chimique de ceramiques fines (mgtio : :(3), mgtio::(4), yba::(2)cu::(3)o::(x)) prepares par decomposition de precurseurs organometalliques." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13075.

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Les 3 methodes de synthese exposees permettent d'abaisser les temperatures de formation des materiaux et d'ameliorer leurs qualites microstructurales. Pour les titanates de mg, l'augmentation de la reactivite des poudres a basse temperature a permis de mettre en evidence la formation intermediaire de phases metastables. On a etabli une correlation etroite entre la granularite des poudres et leur bonne densification lors du frittage. Pour le supraconducteur yba::(2)cu::(3)o::(x), la synthese par voie carboxylique permet d'abaisser la temperature de reaction et de conduire a des poudres peu aggl

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14

Masbah, Hacène. "Synthese, structure et proprietes electroniques de quelques bronzes organiques de v : :(2)o::(5) colloidal." Orléans, 1987. http://www.theses.fr/1987ORLE2012.

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15

張建崇. "Research on the preparation and physical properties of metallic glass powder." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/88782987173072355834.

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16

Shao, Yu-Cheng, and 邵禹成. "Effect of Oxygen Content on Physical Properties of Hexagonal Rubidium Tungsten Bronze Rb0.23WOy." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/46434822821919185164.

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碩士<br>淡江大學<br>物理學系碩士班<br>98<br>Superconducting transition temperature Tc and normal-state resistivity as a function of oxygen content for hexagonal tungsten bronze Rb0.23WOy with 2.90 < y < 3.05 were obtained from transport measurements. It is remarkably interesting that Tc enhances about 50% and room-temperature resistivity increases about three orders of magnitude as oxygen content varies from 2.90 to 3.05. The low-temperature specific heat data indicate that the Einstein-like mode associated with Rb vibration has a dimensionality crossover from 3D to quasi-2D as oxygen content increases fro

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17

Chung, Ming-Xuan, and 鍾銘軒. "Mechanical and Physical Properties of Reactive Powder Concrete Using Aluminum Based Materials." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/e6ptxw.

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碩士<br>國立臺灣海洋大學<br>河海工程學系<br>102<br>As time progresses,various field have begun to study nm,civil engineering also join the ranks of research,and the emergence of new materials. Due to advances in technology, in response to the different needs and developed the use of technology to traditional cement ground into particles generally more careful of ultra-fine cement, so that concrete is more dense, so that the project surname qualitative change, and can reduce the development of cement, reducing damage and pollution of the environment and resources of the planet. In this study, micro- fine cemen

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18

Behera, S. "Synthesis, characterization and mechanical properties of (Al, Cu)3Ti powder blend by mechanical alloying." Thesis, 2014. http://ethesis.nitrkl.ac.in/5822/1/E-33.pdf.

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In the present investigation, an attempt has been made to study the formation of intermetallic compound for Al70Cu22Ti8 alloy composition by mechanical alloying. Elemental powder of Al70Cu22Ti8(all in wt. %) composition was milled in a Fritsch pulverisette planetary mill for 50h under toluene. Powder of 1wt. % Y2O3 and 1wt. % TiO2 were added separately to the 50 h milled base alloy powder to study the effect of oxide dispersion. X-Ray diffraction shows the formation of AlCu, AlTi3, and Cu9Al4intermetallics compound formation after 50h of milling. There is a formation of Al2O3 for Y2O3 and TiO2

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蔡鴻錞. "A Study on the Physical Properties of Polypropylene / Negative Ion Powder Composite Materials." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/71703756301051281759.

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碩士<br>國立臺灣科技大學<br>高分子工程系<br>92<br>The study on the PP/Negative ion powder is used chip blending by the injection molding to fabricate PP/Negative composite materials. By different contained amount powder size and kind of negative ion powder. We tested number of negative ion per cube centimeter, impact strength, tension strength and bending strength. Experimental results indicated that number of negative ion per cube centimeter will increase with added negative ion powder increase. Number of negative ion per cube centimeter will increase with micro powder size decrease. The surface t

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20

Lin, Cheng-De, and 林政德. "The Influences of Bead Milling on Physical, Sintering and Dielectric Properties of BaTiO3 Powder." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/6wt9v2.

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碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>98<br>Demands are high in recent years for the thin dielectric layer of multi-layer ceramic capacitor (MLCC) for development of miniaturization. To achieve high capacitance values, the thickness of the dielectric layer in MLCC should the decreased are the number of the MLCC intermediate layer need to increased. In this investigation, influences of the high energy bead milling on physical properties of BaTiO3 powder are studied. The experiment instrument was a new type of bead miller. One of the experimental variables was the milling time, while two different

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Ochoa, Isaias. "Paste extrusion of polytetrafluoroethylene (PTFE) fine powder resin : the effects of processing aid physical properties." Thesis, 2006. http://hdl.handle.net/2429/18457.

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The rheological properties of a number of polytetrafluoroethylene (PTFE) pastes were studied relevant to paste extrusion process. The effects of the physical properties of lubricants and the geometrical characteristics of the extrusion die on the preforming, extrusion pressure and mechanical properties of the final extrudates were studied. A number of lubricants were identified as suitable for the paste extrusion of polytetrafluoroethylene (PTFE). They were characterized in terms of both flow and surface properties. It was found that it is possible to alter the flow and surface properties of t

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Li, Tung-Hsuan, and 李東軒. "The Effects of Ball Milling on the Physical, Sintering and Dielectric Properties of BaTiO3 Powder." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/jswqqm.

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碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>98<br>Mutil-Layer Ceramic Capacitors (MLCCs) are widely used in the electronic products. With the development of miniaturization of electronic products, MLCCs also towards the development of multi and thin dielectric ceramics layer, which result in capacitance increased. In order to produce thin dielectric ceramics layer, we must use the micro-nano barium titanate powders. The micro-nano barium titanate powders are normally prepared by various synthesis methods, which are expensive. Therefore, the mechanical grinding is often used to reduce the micro barium tita

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(9192797), Hector Lozano Perez. "The role of surface properties on the physical attributes and stability of cocoa powder systems." Thesis, 2020.

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<div>Cocoa is widely used by confectionary industries as a powder raw material for chocolate production. The chemical properties such as high- or low-fat content determine the functionality of the cocoa powder and constitute as a major factor in controlling the behavior of the final product. Additionally, the physicochemical properties such as the cohesive characteristics of cocoa powders create undesirable issues in industrial manufacturing settings. Thus, the evaluation of physical and chemical attributes is relevant to differentiate the powder surface structure and define the material behav

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馮培格. "Effects of addition of soybean extract powder on the physical and functional properties of texturized soybean protein." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/30137109992319327403.

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碩士<br>國立屏東科技大學<br>食品科學系所<br>97<br>The objective of this study is to investigate the addition of soybean extract powder (SEP), which possesses 75.8% soy isoflavones (20.7% aglycones) in the manufacturing process of texturized soybean protein (TSP) by the single-screw extrusion, effects of SEP ratio on the physicochemical properties (moisture retention, color difference, water absorption index (WAI), cooking lose, cutting force) and functional properties (isoflavone contents and antioxidative ability (DPPH scavenging ability and reducing power)). In this study, we fixed total protein ratios of t

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Huang, Yu-Ling, and 黃玉鈴. "Development of multiple unit pellet system (MUPS) tablets containing green tea powder and green tea extracts and evaluation of its physical properties." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/20967461404455399601.

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碩士<br>國立中興大學<br>食品暨應用生物科技學系所<br>103<br>In development of health food, the use of dosage forms, formulation and process will influence the bioavailability of the active ingredients. How to combine multifunctional pellets with controlled release properties to enhance the bioavailability of the active ingredients is the target of developing dosage forms. In this study, we provided a physical barrier by microcapsules and tablets, and to improve the stability of catechin during processing also to mask the bitter taste under high dosage levels. Using different combination of starch, sodium alginate

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