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Zone Melting
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Details
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Zone melting (or zone refining or floating zone process) is a group of similar methods of purifying crystals, in which a narrow region of a crystal is molten, and this molten zone is moved along the crystal (in practice, the crystal is pulled through the heater). The molten region melts impure solid at its forward edge and leaves a wake of purer material solidified behind it as it moves through the ingot. The impurities concentrate in the melt, and are moved to one end of the ingot. Zone refining was developed by William Gardner Pfann in Bell Labs as a method to prepare high purity materials for manufacturing transistors. Its early use was on germanium for this purpose, but it can be extended to virtually any solute-solvent system having an appreciable concentration difference between solid and liquid phases at equilibrium [1]. This process is also known as the float zone process, particularly in semiconductor materials processing.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130959975
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Technik
- Anzahl Seiten 96
- Größe H220mm x B220mm
- EAN 9786130959975
- Format Fachbuch
- Titel Zone Melting
- Herausgeber Betascript Publishing
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