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Effect [sic] des paramètres métallurgiques sur le comportement d'usinage des alliages 356 et 319 (étude de forage et de taraudage) /Tash, Mahmoud, January 2005 (has links)
Thèse (D.Ing.) -- Université du Québec à Chicoutimi, 2005. / Bibliogr.: f. 240-252. Document électronique également accessible en format PDF. CaQCU
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Design and simulation of strained-Si/strained SiGe dual channel hetero-structure MOSFETs /Goyal, Puneet. January 2007 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references.
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Phonon-assisted tunneling in silicon/silicon-germanium resonant interband tunnel diodesYu, Ronghua, January 2007 (has links)
Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 167-177).
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Andreev bound states and tunneling characteristics of a noncentrosymmetric superconductorIniotakis, C., Hayashi, N., Sawa, Y., Yokoyama, T., May, U., Tanaka, Y., Sigrist, M. 07 1900 (has links)
No description available.
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Quantum transport in a normal metal/odd-frequency superconductor junctionLinder, Jacob, Yokoyama, Takehito, Tanaka, Yukio, Asano, Yasuhiro, Sudbø, Asle 05 1900 (has links)
No description available.
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Artificial aging treatments of 319-type aluminium alloysTavitas-Medrano, Francisco Javier. January 2007 (has links)
Aluminum-silicon-copper cast alloys of the 319-type have attained a commercially important status because of their widespread use. Artificial aging treatments are routinely applied to these alloys in order to obtain precipitation hardening and improve their mechanical properties. Standard treatments may not always yield the optimum achievable properties, thus Mg and Sr are commonly added to improve the response of the alloy to aging and to modify the eutectic Si morphology from acicular to fibrous, respectively. The present study was carried out to investigate aging behavior of four 319-type alloys in regard to such mechanical properties as their ultimate tensile strength, yield strength, microhardness, percent elongation and impact toughness. Non-conventional aging cycles were applied so as to evaluate the degree of the improvement in strength obtainable. These treatments, labeled in this study as T6- and T7-type multi-temperature and interrupted aging treatments, involve several heating stages at different temperatures, as opposed to the single stage at constant temperature specifications of the standard T6 or T7 heat treatment regimes. Scanning electron microscopy was used to examine the fracture surfaces of selected tensile-tested samples to compare the fracture behavior. Transmission electron microscopy was used to reveal and identify the tiny precipitates which appear in the microstructure as a result of the precipitation-hardening process due to artificial aging. It was found that the main strengthening phase is theta-Al2Cu in the form of needles; other phases were observed as minor constituents in this alloy, including the binary beta-Mg2Si, the ternary S-CuAlMg 2 and the quaternary Q-Al5Cu2Mg7Si 7. The results show that while Mg and Sr additions improve the properties of the alloy, the standard T6 treatment may not be the best available option to produce optimum properties. In fact, when the peak-aged (T6) condition is desired, the optimum treatment consists of a continuous artificial treatment at 170°C for 8 h; when the overaged (T7) condition is desired, a T7-type multi-temperature treatment consisting of underaging at 170°C for 1 h, then at 190°C for 1 h, and finally overaging at 240°C for 2 h is the best option.
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Shock compaction and synthesis of titanium-silicon-carbide (Ti₃SiC₂)Jordan, Jennifer Lynn 08 1900 (has links)
No description available.
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Quantitative characterization of damage evolution in an Al-Si-Mg base cast alloyDighe, Manish D. 08 1900 (has links)
No description available.
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Poly-Si/Poly-Si(1-x)Ge(x) by sputtering techniques for thin film pMOSFET applications /Priyanto, Muh. Wahid. Unknown Date (has links)
Thesis (MEng)--University of South Australia, 1997
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Effets des éléments alliés et des traitements thermiques sur la microstructure et les propriétés de traction des alliages aluminium-silicium 413.0 /Lepage, Carl, January 2003 (has links)
Thèse (M.Eng.) -- Université du Québec à Chicoutimi, 2003. / Bibliogr.: f. 187-194. Document électronique également accessible en format PDF. CaQCU
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