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The Global ETD Search service is a free service for researchers
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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 181 to 190 of 873 (0.022 seconds)Spelling suggestions: "subject:"zirconium"" "subject:"irconium""
| 181 |
The dissolution of niobium and zirconium in liquid steelSismanis, Panagiotis G., 1959- January 1987 (has links)
The dissolution rates of niobium and zirconium cylinders in liquid steel have been measured in a 'dynamic way', with the help of a data acquisition and process control facility. Two distinct periods were identified; the steel shell period and the free dissolution period. / Lower bath superheats allowed a reaction to take place at the steel shell/niobium interface while higher superheats didn't; the intermetallic compounds Fe$ sb 2$Nb and Fe$ sb 2$Nb$ sb 3$ were identified as the reaction products. Niobium dissolved relatively slowly in liquid steel and its dissolution speed was increased under dynamic conditions (i.e., inductively stirred baths). / In the case of zirconium, an exothermic reaction occurred at the steel shell/zirconium interface and the intermetallics Fe$ sb 2$Zr and FeZr$ sb 2$ were identified as the reaction products. This reaction was triggered at 1220 K by the formation of a liquid Fe-Zr (76 at% Zr) eutectic. For the experimental conditions under which this study was performed, the hydrodynamic conditions of the steel baths did not seem to influence the dissolution rates of zirconium. / A simplified mathematical model was used in order to simulate the coupled heat and mass transfer phenomena which take place during the two periods.
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| 182 |
Anisotropic mechanical behaviour of a Zr-Sn-Nb-Mo alloySalinas Rodríguez, Armando January 1984 (has links)
No description available.
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| 183 |
(p. xn) cross sections in Y89.Chang, Ching-chang, M.Sc. January 1970 (has links)
No description available.
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| 184 |
Solidus temperature determination in the high zirconia region of the Ca0-A1[subscript]20[subscript]3-Zr0[subscript]2 systemKim, Baek Hee January 1977 (has links)
No description available.
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| 185 |
Development of a calcia-alumina-zirconia castableSmith, Lindsey Keller January 1978 (has links)
No description available.
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| 186 |
The effect of microstructure on the fatigue crack propagation behavior of an aluminum-zinc-magnesium-zirconium alloyCoyne, Edward James 05 1900 (has links)
No description available.
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| 187 |
Concentration and composition effects in combustion chemical vapor deposited yttria-zirconiaGodfrey, Shelli Heather 05 1900 (has links)
No description available.
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| 188 |
Characteristics of a thermal plasma containing zirconium tetrachloride : a thesisKyriacou, Andreas. January 1982 (has links)
No description available.
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| 189 |
Extension of the master sintering curve for constant heating rate modelingMcCoy, Tammy Michelle. January 2008 (has links)
Thesis (Ph. D.)--Materials Science and Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Dr. Joe K. Cochran; Committee Co-Chair: Dr. Thomas H. Sanders; Committee Member: Dr. John Elton; Committee Member: Dr. Meilin Liu; Committee Member: Dr. Robert F. Speyer.
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| 190 |
Computer simulations of amorphous copper-zirconium /Goldstein, Alexandra Susan, January 1995 (has links)
Thesis (Ph. D.)--University of Washington, 1995. / Vita. Includes bibliographical references (leaves [128]-134).
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