Structure of normal and supercooled liquid aluminum oxide
We have made a new determination of the structure of liquid aluminum oxide over a wide temperature range, including the supercooled region, using synchrotron X-ray diffraction. Measurements were performed over a wide scattering vector range, 0.5-16 Å -1. Specimens of aluminum oxide were aerodynamica...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2005
|
| _version_ | 1797076147984400384 |
|---|---|
| author | Krishnan, S Hennet, L Jahn, S Key, T Madden, P Saboungi, M Price, D |
| author_facet | Krishnan, S Hennet, L Jahn, S Key, T Madden, P Saboungi, M Price, D |
| author_sort | Krishnan, S |
| collection | OXFORD |
| description | We have made a new determination of the structure of liquid aluminum oxide over a wide temperature range, including the supercooled region, using synchrotron X-ray diffraction. Measurements were performed over a wide scattering vector range, 0.5-16 Å -1. Specimens of aluminum oxide were aerodynamically levitated and laser-heated to temperatures in excess of the melting temperature of 2327 K. Diffraction measurements were performed in a temperature range of 2000-2600 K, which included the supercooled liquid state. Measurements performed in argon (reducing) and oxygen (oxidizing) atmospheres show little structural difference, in contrast to reported differences in optical properties. The X-ray results are in excellent agreement with those of a molecular dynamics simulation performed with an ab initio interaction potential. © 2005 American Chemical Society. |
| first_indexed | 2024-03-07T00:00:04Z |
| format | Journal article |
| id | oxford-uuid:759fb594-98d5-4124-ae4a-ac2c5029409d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:00:04Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:759fb594-98d5-4124-ae4a-ac2c5029409d2022-03-26T20:10:33ZStructure of normal and supercooled liquid aluminum oxideJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:759fb594-98d5-4124-ae4a-ac2c5029409dEnglishSymplectic Elements at Oxford2005Krishnan, SHennet, LJahn, SKey, TMadden, PSaboungi, MPrice, DWe have made a new determination of the structure of liquid aluminum oxide over a wide temperature range, including the supercooled region, using synchrotron X-ray diffraction. Measurements were performed over a wide scattering vector range, 0.5-16 Å -1. Specimens of aluminum oxide were aerodynamically levitated and laser-heated to temperatures in excess of the melting temperature of 2327 K. Diffraction measurements were performed in a temperature range of 2000-2600 K, which included the supercooled liquid state. Measurements performed in argon (reducing) and oxygen (oxidizing) atmospheres show little structural difference, in contrast to reported differences in optical properties. The X-ray results are in excellent agreement with those of a molecular dynamics simulation performed with an ab initio interaction potential. © 2005 American Chemical Society. |
| spellingShingle | Krishnan, S Hennet, L Jahn, S Key, T Madden, P Saboungi, M Price, D Structure of normal and supercooled liquid aluminum oxide |
| title | Structure of normal and supercooled liquid aluminum oxide |
| title_full | Structure of normal and supercooled liquid aluminum oxide |
| title_fullStr | Structure of normal and supercooled liquid aluminum oxide |
| title_full_unstemmed | Structure of normal and supercooled liquid aluminum oxide |
| title_short | Structure of normal and supercooled liquid aluminum oxide |
| title_sort | structure of normal and supercooled liquid aluminum oxide |
| work_keys_str_mv | AT krishnans structureofnormalandsupercooledliquidaluminumoxide AT hennetl structureofnormalandsupercooledliquidaluminumoxide AT jahns structureofnormalandsupercooledliquidaluminumoxide AT keyt structureofnormalandsupercooledliquidaluminumoxide AT maddenp structureofnormalandsupercooledliquidaluminumoxide AT saboungim structureofnormalandsupercooledliquidaluminumoxide AT priced structureofnormalandsupercooledliquidaluminumoxide |