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Showing 1 to 20 of 51 for “"Cu-Ag"”.
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Cu(Ag)-Legierungsschichten als Werkstoff für Leiterbahnen höchstintegrierter Schaltkreise
Die vorliegende Arbeit verfolgt das Ziel, Cu(Ag)-Dünnschichten als potentiellen Werkstoff für Leiterbahnen in der Mikroelektronik zu untersuchen. Für die Beurteilung dieses Materialsystems wurden vier Schwerpunkte bezüglich der Schichtcharakterisierung definiert: Herstellung, Gefüge, …
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Technology, science, and environtmental impact of a novel Cu-Ag core-shell solderless interconnect system
… and plays a critical role in electronic packaging and attachment. While manufacturers of consumer electronics have made the transition to the use of lead-free solder, there are still a variety of reliability issues associated with these lead-free alternatives, particularly for high …
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Defect mediated plasticity in Cu/Ag nanoscale multilayered metal composites: deformation twinning and wavy interface formation
Made available in DSpace on 2013-08-22T16:35:38Z (GMT). No. of bitstreams: 4 Ruizhi_Li.pdf: 2616507 bytes, checksum: dff899bcd8bac69b54dbea75d994edac (MD5) 0_Li_Ruizhi.docx: 28848935 bytes, checksum: 4c460173b168128b9fb90f0828607c49 (MD5) Li_Ruizhi.docx: 28848935 bytes, checksum: …
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Estudio de los mecanismos de reacción para la reducción catalítica del NO_2 sobre nanopartículas de Cu, Ag y Au
Los óxidos de nitrógeno se encuentran entre los principales contaminantes de la atmósfera y los mecanismos de su formación son de sostenido interés mundial. Actualmente más de 30 millones de toneladas de NOx se emiten a la atmósfera cada año y esto constituye una situación compleja y crítica a …
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Étude des dimensions moléculaires des polymères {[M(dmb)2]Y}n et préparation et caractérisation de nouveaux polymères organométalliques à base de Cu, Ag et Pd
… partie portera sur l'étude des dimensions moléculaires des polymères {[M(dmb)[indice inférieur 2]]Y}[indice inférieur n] où M = Ag et Cu. Y = BF[indice inférieur 4]¯. NO[indice inféreiur 3]¯ et ClO[indice inférieur 4]¯ et dmb = 1,8-diisocyano-p-menthane alors que la deuxième partie fournira une …
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Ternary Rare-Earth Coinage Metal Arsenides LnTAs2, Sm2Cu3As3; Quaternary Arsenide Oxides Sm2CuAs3O and Selenides KGd2CuSe4, KLn2Cu3Se5, and K2Ln4Cu4Se9 (Ln = Y, La - Nd, Sm, Gd - Lu; T = Cu, Ag, Au): Syntheses, Crystal Structures and Physical Properties
… some new ternary and quaternary rare-earth coinage metal arsenides, selenides and oxides. All ternary compounds LnCu1+[delta]As2 (Ln = Y, La, Ce, Nd, Sm, Gd - Lu), LnAg1+[delta]As2 (Ln = La - Nd, Sm), and LnAuAs2 (Ln = Pr, Sm, Gd, Tb) adopt structures closely related to the HfCuSi2 type …
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Turning InP nanocrystals up to 11: Coinage Metal Cation Exchange in InP Nanocrystals
… via traditional synthetic methods. This thesis focuses on the cation exchange of coinage metal (Cu, Ag, Au) cations in InP nanomaterials. Chapter 1 will provide an introduction to core concepts and background related to quantum dots, clusters, and dopant-dependent properties. In chapter 2, we will …
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Microstructural evolution of sputtered phase segregated metal composite thin films
… metal thin film composites: fully miscible (Au-Ag), slightly immiscible (Cu-Ag) and immiscible (Au-SiO 2). Texture development refers to the distribution of orientations of crystallites in polycrystalline thin films, and is an important part of the microstructure that determines thin film …
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Quantifying the interface deformation mechanisms in nanostructured metals with atomic simulations and continuum field representations
… descriptors for interface structures, it is difficult to quantify the interface-dislocation interaction mechanisms in the nanostructured metals. Targeting to resolve this problem, my research is divided into two steps. In the first step, the interface-dominant plastic deformation mechanisms of …
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Shear induced mixing and self-organization in immiscible alloys during severe plastic deformation
… are desired. This dissertation research focuses on understanding the underlying mechanisms and evolution of the microstructure in Cu-Ag, an immiscible alloy, during SPD. The two key features of SPD processing that will be presented are shear induced chemical mixing of alloying elements at …
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Interstitial-impurity interactions in copper-silver and aluminum-magnesium alloys
… (at 10 MHz) in single crystal sample s of Cu-Ag and AI-Mg. A variety of peaks appeared in both materials in plots of the logarithmic decrement versus temperature. The simultaneous presence of multiple defects was established by the different annealing behavior shown by each peak. It was …
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The feasability of processing silver and copper using 400w laser powder bed fusion additive manufacturing
… capture technologies. However, it is widely agreed that many industries will require advances in materials and manufacturing technologies for effective solutions for future systems and devices. Silver (Ag) and copper (Cu) exhibit exceptional thermal, electrical, and antimicrobial …
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Novel precipitate structures in alloys under irradiation
… the microstructures of driven alloys. First we focus on an irradiation-induced precipitatewithin- precipitate structure, which is referred to as “cherry-pit” structure. We show by computer simulation and analytical modeling that the formation of cherry-pit structure is a special instance of …
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Self-Organization of Dilute Copper Binary Alloys Under Ion Irradiations
… irradiation have on model alloy systems, dilute Cu-Ag, Cu-Nb, Cu-Mo and Cu-Fe alloys, and compares their behaviors with existing models on driven systems. For the first three alloys, the microstructure is characterized using X-ray diffraction, transmission electron microscopy and Rutherford …
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Improving radiation resistance of solid solutions by addition of defect trapping solutes: Atomistic simulations and continuum modeling
Many radiation damage phenomena are driven by the production and fluxes of point defects, particularly in alloys. The addition of defect-trapping solute has been proposed to improve radiation damage tolerance. Selecting effective solute is complicated however, because the trapping is a complex …
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Synthesis and Applications of Copper Nanowires and Nanoplates
… nanocrystals is cost. Precious metals such as Ag and Au exhibit compelling properties in the nano scale, yet the astronomical cost of bulk materials and low throughput of synthetic methods make them impractical for applications that require more than a few milligrams of nanocrystals. This work …
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LOW-DIMENSIONAL CHALCOGENIDE BASED THERMOELECTRIC COMPOSITES
… were designed. On one hand, ternary metal (Bi, Cu, Ag, and Pb) chalcogenide nanowires with high thermoelectric figure of merit and power factors were obtained by using Te1-xSex alloys as templates. On the other hand, Bi2Se3, Bi2Te3, Sb2Te3 nanoplates and their derivatives were also successfully …
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Untersuchung zum Präzisionsgiessen metallischer Mikroteile
… Legierungen, basierend auf den Systemen Cu-Al-Ni-Fe, Ag-Cu, Ag-Pd-Cu und Au-Ag-Cu erweitert, wobei Gussteile mit minimalen Querschnitten von <br>50 µm realisiert wurden. Zur Bestimmung der Mikrogießbarkeit wurden Prüfkörper entwickelt, mittels derer für die verschiedenen Gusslegierungen …
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The Total Synthesis of () 7-HDHA
… catalyst P2-Nickel, and a late-stage semi-hydrogenation with Zn(Cu/Ag) reagent. The completion of this synthesis will now provide large quantities of 7-HDHA quickly, and thus enable extensive studies of PPAR 7-HDHA interaction.
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