Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/7366
Title: | Effect of Impurities on the Strength of CaF₂ Single Crystals |
Authors: | Cingi, Celal |
Advisor: | Nicholson, P.S. |
Department: | Metallurgy and Materials Science |
Keywords: | Materials Science and Engineering;Metallurgy;Materials Science and Engineering |
Publication Date: | Nov-1974 |
Abstract: | <p>Pure and doped CaF₂ single crystals were grown from melts by Czochralski technique. The doped crystals contained two levels of Na⁺, K⁺, V³⁺ and Y³⁺ impurities. The crystals were subsequently annealed and analysed for impurities. Samples were mechanically tested in compression at 450 and 600°C, and the 0.1% proof stress noted. An attempt was made to explain the observed hardening by Fleischer's theory of solid solution hardening in the case of V³⁺ and Y³⁺ -doped CaF₂ and by precipitation hardening theory in the case of Na⁺ and K⁺ -doped crystals.</p> |
URI: | http://hdl.handle.net/11375/7366 |
Identifier: | opendissertations/2646 3554 1390654 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 2.47 MB | Adobe PDF | View/Open |
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