Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction

dc.creatorGuzzo, Pedro Luiz
dc.creatorShinohara, Armando Hideki
dc.creatorCosta, Harlan Allen Dantas
dc.creatorRaslan, Alberto Arnaldo
dc.creatorSuzuki, Carlos Kenichi
dc.creatorAzevedo, Walter Mendes
dc.date2004-06-01
dc.date2014-07-18T17:49:30Z
dc.date2015-11-26T11:55:59Z
dc.date2014-07-18T17:49:30Z
dc.date2015-11-26T11:55:59Z
dc.date.accessioned2018-03-28T20:58:59Z
dc.date.available2018-03-28T20:58:59Z
dc.identifierMaterials Research. ABM, ABC, ABPol, v. 7, n. 2, p. 285-291, 2004.
dc.identifier1516-1439
dc.identifierS1516-14392004000200011
dc.identifier10.1590/S1516-14392004000200011
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392004000200011
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200011
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/34594
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/34594
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1238405
dc.descriptionIn 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.
dc.description285
dc.description291
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherABM, ABC, ABPol
dc.relationMaterials Research
dc.rightsaberto
dc.sourceSciELO
dc.subjectsynthetic quartz
dc.subjectimpurity segregation
dc.subjectinfrared spectroscopy
dc.subjectX-ray topography
dc.titleCharacterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución