Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction
In the present study, the morphology and the impurity distribution were investigated in growth sectors formed around the [0001] axis of synthetic quartz crystals. Plates containing cylindrical holes and cylindrical bars parallel to [0001] were prepared by ultrasonic machining and further used as see...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2004-06-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200011 |
| _version_ | 1818932965037572096 |
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| author | Pedro Luiz Guzzo Armando Hideki Shinohara Harlan Allen Dantas Costa Alberto Arnaldo Raslan Carlos Kenichi Suzuki Walter Mendes Azevedo |
| author_facet | Pedro Luiz Guzzo Armando Hideki Shinohara Harlan Allen Dantas Costa Alberto Arnaldo Raslan Carlos Kenichi Suzuki Walter Mendes Azevedo |
| author_sort | Pedro Luiz Guzzo |
| collection | DOAJ |
| description | In the present study, the morphology and the impurity distribution were investigated in growth sectors formed around the [0001] axis of synthetic quartz crystals. Plates containing cylindrical holes and cylindrical bars parallel to [0001] were prepared by ultrasonic machining and further used as seed-crystals. The hydrothermal growth of synthetic quartz was carried out in a commercial autoclave under NaOH solution during 50 days. The morphologies of crystals grown from cylindrical seeds were characterized by X-ray diffraction topography. For both types of crystals, +X- and X- growth sectors were distinctly observed. Infrared spectroscopy and ionizing radiation were adopted to reveal the distribution of point defects related to Si-Al substitution and OH-species. It was found a different distribution of Al-related centers in relation to the crystals grown from conventional Y-bar and Z-plate seeds. |
| first_indexed | 2024-12-20T04:40:52Z |
| format | Article |
| id | doaj.art-9e4e0a1284e44fde8eee76e3c3e77056 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-20T04:40:52Z |
| publishDate | 2004-06-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-9e4e0a1284e44fde8eee76e3c3e770562022-12-21T19:53:08ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392004-06-017228529110.1590/S1516-14392004000200011Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] directionPedro Luiz GuzzoArmando Hideki ShinoharaHarlan Allen Dantas CostaAlberto Arnaldo RaslanCarlos Kenichi SuzukiWalter Mendes AzevedoIn the present study, the morphology and the impurity distribution were investigated in growth sectors formed around the [0001] axis of synthetic quartz crystals. Plates containing cylindrical holes and cylindrical bars parallel to [0001] were prepared by ultrasonic machining and further used as seed-crystals. The hydrothermal growth of synthetic quartz was carried out in a commercial autoclave under NaOH solution during 50 days. The morphologies of crystals grown from cylindrical seeds were characterized by X-ray diffraction topography. For both types of crystals, +X- and X- growth sectors were distinctly observed. Infrared spectroscopy and ionizing radiation were adopted to reveal the distribution of point defects related to Si-Al substitution and OH-species. It was found a different distribution of Al-related centers in relation to the crystals grown from conventional Y-bar and Z-plate seeds.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200011synthetic quartzimpurity segregationinfrared spectroscopyX-ray topography |
| spellingShingle | Pedro Luiz Guzzo Armando Hideki Shinohara Harlan Allen Dantas Costa Alberto Arnaldo Raslan Carlos Kenichi Suzuki Walter Mendes Azevedo Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction Materials Research synthetic quartz impurity segregation infrared spectroscopy X-ray topography |
| title | Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction |
| title_full | Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction |
| title_fullStr | Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction |
| title_full_unstemmed | Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction |
| title_short | Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction |
| title_sort | characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to 0001 direction |
| topic | synthetic quartz impurity segregation infrared spectroscopy X-ray topography |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200011 |
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