Czochralski Growth of 12CaO·7Al2O3 Crystals
Single crystals of nanoporous 12CaO·7Al2O3 (C12A7) as large as 27 mm in diameter, 120 mm in length, and 207 g in weight have been successfully grown by the Czochralski method. We found that a 2.0% oxygen-containing nitrogen atmosphere and an iridium crucible are the critical factors for success. The...
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| Veröffentlicht in: | Crystal growth & design 2006-07, Vol.6 (7), p.1602-1605 |
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| container_issue | 7 |
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| container_title | Crystal growth & design |
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| creator | Kurashige, Kazuhisa Toda, Yoshitake Matstuishi, Satoru Hayashi, Katsuro Hirano, Masahiro Hosono, Hideo |
| description | Single crystals of nanoporous 12CaO·7Al2O3 (C12A7) as large as 27 mm in diameter, 120 mm in length, and 207 g in weight have been successfully grown by the Czochralski method. We found that a 2.0% oxygen-containing nitrogen atmosphere and an iridium crucible are the critical factors for success. The crystal ingot exhibited an orange color resulting from the incorporation of Ir4+ ions of ca. 5 × 1017 cm-3, which presumably occupy Ca2+ sites. X-ray diffraction analysis indicated that the ingot obtatined was a single crystal with few domains. |
| doi_str_mv | 10.1021/cg0600290 |
| format | Article |
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We found that a 2.0% oxygen-containing nitrogen atmosphere and an iridium crucible are the critical factors for success. The crystal ingot exhibited an orange color resulting from the incorporation of Ir4+ ions of ca. 5 × 1017 cm-3, which presumably occupy Ca2+ sites. 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Growth Des</addtitle><description>Single crystals of nanoporous 12CaO·7Al2O3 (C12A7) as large as 27 mm in diameter, 120 mm in length, and 207 g in weight have been successfully grown by the Czochralski method. We found that a 2.0% oxygen-containing nitrogen atmosphere and an iridium crucible are the critical factors for success. The crystal ingot exhibited an orange color resulting from the incorporation of Ir4+ ions of ca. 5 × 1017 cm-3, which presumably occupy Ca2+ sites. 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Growth Des</addtitle><date>2006-07-05</date><risdate>2006</risdate><volume>6</volume><issue>7</issue><spage>1602</spage><epage>1605</epage><pages>1602-1605</pages><issn>1528-7483</issn><eissn>1528-7505</eissn><abstract>Single crystals of nanoporous 12CaO·7Al2O3 (C12A7) as large as 27 mm in diameter, 120 mm in length, and 207 g in weight have been successfully grown by the Czochralski method. We found that a 2.0% oxygen-containing nitrogen atmosphere and an iridium crucible are the critical factors for success. The crystal ingot exhibited an orange color resulting from the incorporation of Ir4+ ions of ca. 5 × 1017 cm-3, which presumably occupy Ca2+ sites. X-ray diffraction analysis indicated that the ingot obtatined was a single crystal with few domains.</abstract><cop>Washington,DC</cop><pub>American Chemical Society</pub><doi>10.1021/cg0600290</doi><tpages>4</tpages></addata></record> |
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| source | ACS Publications |
| subjects | Cross-disciplinary physics: materials science rheology Exact sciences and technology Growth from melts zone melting and refining Materials science Methods of crystal growth physics of crystal growth Physics |
| title | Czochralski Growth of 12CaO·7Al2O3 Crystals |
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