Estudo cristalográfico de berilos naturais
Ano de defesa: | 2018 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Goiás
|
Programa de Pós-Graduação: |
Programa de Pós-graduação em Fisica (IF)
|
Departamento: |
Instituto de Física - IF (RG)
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.bc.ufg.br/tede/handle/tede/9227 |
Resumo: | The crystallography is for excellence the methodology that presents itself as the most adequate for structural elucidation due to the high resolution with which it can be described the electronic density, besides being a methodology that brings with it an interdisciplinary character, crossing the various cognitive areas, corroborating to the state of the art together with the demand for new technologies that come to enter the development of science. In this job are presented the crystallographic studies of 13 crystalline samples of beryl, being 2 samples of acquamarine and 11 industrial beryl, being 1 octahedral sample, in other words, there is a total or partial replacement of Al by some metal, 1 sample in transition from the octahedral type to normal, 3 samples of the normal type, without any type of atomic substitution, 5 transition samples of the normal type for tetrahedra and 2 tetrahedra samples, that is, with total or partial replacement of the Be for Li. Was performed with data sets obtained by X-ray diffraction of monocrystal and complemented with the method of Sum of the Bond Valence Model and Fingerprints. The results showed that through the analysis of the lattice parameters of the samples it was possible to determine the typology of each one through the c/a ratio. Axis a had changes in the 13 diffracted monocrystals, varying between 9,2054Å and 9,2400Å. The c axis showed a slightly more significant variation, its values remained between 9,1791Å and 9,2200Å. The Bond Valence Model was used to indicate possible ions in the structures and their oxidation states. Fingerprints were used to quantify the contribution of each interatomic contact to the stability of the structures. All samples were similar, diverging in small configurations according to the typology and their respective substitutions and inclusions. |
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Sabino, José Ricardohttp://lattes.cnpq.br/9101677399031185Sabino, Jose RicardoBufaical, Leandro Felix de SousaNapolitano, Hamilton Barbosahttp://lattes.cnpq.br/7395812165363067Paula, Renata Layse Gonçalves de2019-01-15T13:38:59Z2018-12-04PAULA, R. L. G. Estudo cristalográfico de berilos naturais. 2018. 164 f. Dissertação (Mestrado em Fisica) - Universidade Federal de Goiás, Goiânia, 2018.http://repositorio.bc.ufg.br/tede/handle/tede/9227The crystallography is for excellence the methodology that presents itself as the most adequate for structural elucidation due to the high resolution with which it can be described the electronic density, besides being a methodology that brings with it an interdisciplinary character, crossing the various cognitive areas, corroborating to the state of the art together with the demand for new technologies that come to enter the development of science. In this job are presented the crystallographic studies of 13 crystalline samples of beryl, being 2 samples of acquamarine and 11 industrial beryl, being 1 octahedral sample, in other words, there is a total or partial replacement of Al by some metal, 1 sample in transition from the octahedral type to normal, 3 samples of the normal type, without any type of atomic substitution, 5 transition samples of the normal type for tetrahedra and 2 tetrahedra samples, that is, with total or partial replacement of the Be for Li. Was performed with data sets obtained by X-ray diffraction of monocrystal and complemented with the method of Sum of the Bond Valence Model and Fingerprints. The results showed that through the analysis of the lattice parameters of the samples it was possible to determine the typology of each one through the c/a ratio. Axis a had changes in the 13 diffracted monocrystals, varying between 9,2054Å and 9,2400Å. The c axis showed a slightly more significant variation, its values remained between 9,1791Å and 9,2200Å. The Bond Valence Model was used to indicate possible ions in the structures and their oxidation states. Fingerprints were used to quantify the contribution of each interatomic contact to the stability of the structures. All samples were similar, diverging in small configurations according to the typology and their respective substitutions and inclusions.A cristalografia é por excelência a metodologia que se apresenta como a mais adequada para elucidação estrutural devido à alta resolução com que se pode descrever a densidade eletrônica, além de ser uma metodologia que traz consigo caráter interdisciplinar, perpassando as várias áreas cognitivas, corroborando para o estado da arte junto à demanda por novas tecnologias que venham inteirar o desenvolvimento da ciência. Neste trabalho são apresentados os estudos cristalográficos de 13 amostras cristalinas de berilo, sendo 2 amostras de águas-marinhas e 11 de berilo industrial, sendo 1 amostra octaédrica, ou seja, existe uma substituição total ou parcial do Al por algum metal, 1 amostra em transição do tipo octaedral para normal, 3 amostras do tipo normal, sem nenhum tipo de substituiçãoatômica, 5 amostras em transição do tipo normal para tetraedral e 2 amostras tetraedrais, ou seja, com substituição total ou parcial do Be por Li. Todo estudo cristalográfico foi realizado com conjuntos de dados obtidos por difração de raios X de monocristal e complementado com o método das Somas das Ligações de Valência e dos Fingerprints. Os resultados mostraram que através da análise dos parâmetros de rede das amostras foi possível determinar a tipologia de cada uma através da razão c/a. O eixo a teve alterações nos 13 monocristais difratados, variando entre 9,2054Å e 9,2400Å. O eixo c apresentou uma variação um pouco mais significativa, seus valores permaneceram entre 9,1791Å e 9,2200Å. O método das Somas das Ligações de Valência foi utilizado para indicar os possíveis íons existentes nas estruturas e seus estados de oxidação. Os Fingerprints foram utilizados para quantificação da contribuição de cada contato interatômico para estabilidade das estruturas. Todas as amostras se mostraram semelhantes, divergindo em pequenas configurações em acordo com a tipologia e suas respectivas substituições e inclusões.Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2019-01-15T13:24:39Z No. of bitstreams: 2 Dissertação - Renata Layse Gonçalves de Paula - 2018.pdf: 6746436 bytes, checksum: 79cb6f3dddf86dec5eb9d1480b57caf4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2019-01-15T13:38:58Z (GMT) No. of bitstreams: 2 Dissertação - Renata Layse Gonçalves de Paula - 2018.pdf: 6746436 bytes, checksum: 79cb6f3dddf86dec5eb9d1480b57caf4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2019-01-15T13:38:59Z (GMT). No. of bitstreams: 2 Dissertação - Renata Layse Gonçalves de Paula - 2018.pdf: 6746436 bytes, checksum: 79cb6f3dddf86dec5eb9d1480b57caf4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-12-04Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Fisica (IF)UFGBrasilInstituto de Física - IF (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessCristalografiaBeriloDifração de raios XÁgua-marinhaMineraisCrystallographyBerylX-ray diffractionAquamarineMineralsCIENCIAS EXATAS E DA TERRA::FISICAEstudo cristalográfico de berilos naturaisCrystallographic study of natural berylsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis3162138865744262028600600600600-4029658853652049306-8327146296503745929-2555911436985713659reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv |
Estudo cristalográfico de berilos naturais |
dc.title.alternative.eng.fl_str_mv |
Crystallographic study of natural beryls |
title |
Estudo cristalográfico de berilos naturais |
spellingShingle |
Estudo cristalográfico de berilos naturais Paula, Renata Layse Gonçalves de Cristalografia Berilo Difração de raios X Água-marinha Minerais Crystallography Beryl X-ray diffraction Aquamarine Minerals CIENCIAS EXATAS E DA TERRA::FISICA |
title_short |
Estudo cristalográfico de berilos naturais |
title_full |
Estudo cristalográfico de berilos naturais |
title_fullStr |
Estudo cristalográfico de berilos naturais |
title_full_unstemmed |
Estudo cristalográfico de berilos naturais |
title_sort |
Estudo cristalográfico de berilos naturais |
author |
Paula, Renata Layse Gonçalves de |
author_facet |
Paula, Renata Layse Gonçalves de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Sabino, José Ricardo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9101677399031185 |
dc.contributor.referee1.fl_str_mv |
Sabino, Jose Ricardo |
dc.contributor.referee2.fl_str_mv |
Bufaical, Leandro Felix de Sousa |
dc.contributor.referee3.fl_str_mv |
Napolitano, Hamilton Barbosa |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7395812165363067 |
dc.contributor.author.fl_str_mv |
Paula, Renata Layse Gonçalves de |
contributor_str_mv |
Sabino, José Ricardo Sabino, Jose Ricardo Bufaical, Leandro Felix de Sousa Napolitano, Hamilton Barbosa |
dc.subject.por.fl_str_mv |
Cristalografia Berilo Difração de raios X Água-marinha Minerais |
topic |
Cristalografia Berilo Difração de raios X Água-marinha Minerais Crystallography Beryl X-ray diffraction Aquamarine Minerals CIENCIAS EXATAS E DA TERRA::FISICA |
dc.subject.eng.fl_str_mv |
Crystallography Beryl X-ray diffraction Aquamarine Minerals |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::FISICA |
description |
The crystallography is for excellence the methodology that presents itself as the most adequate for structural elucidation due to the high resolution with which it can be described the electronic density, besides being a methodology that brings with it an interdisciplinary character, crossing the various cognitive areas, corroborating to the state of the art together with the demand for new technologies that come to enter the development of science. In this job are presented the crystallographic studies of 13 crystalline samples of beryl, being 2 samples of acquamarine and 11 industrial beryl, being 1 octahedral sample, in other words, there is a total or partial replacement of Al by some metal, 1 sample in transition from the octahedral type to normal, 3 samples of the normal type, without any type of atomic substitution, 5 transition samples of the normal type for tetrahedra and 2 tetrahedra samples, that is, with total or partial replacement of the Be for Li. Was performed with data sets obtained by X-ray diffraction of monocrystal and complemented with the method of Sum of the Bond Valence Model and Fingerprints. The results showed that through the analysis of the lattice parameters of the samples it was possible to determine the typology of each one through the c/a ratio. Axis a had changes in the 13 diffracted monocrystals, varying between 9,2054Å and 9,2400Å. The c axis showed a slightly more significant variation, its values remained between 9,1791Å and 9,2200Å. The Bond Valence Model was used to indicate possible ions in the structures and their oxidation states. Fingerprints were used to quantify the contribution of each interatomic contact to the stability of the structures. All samples were similar, diverging in small configurations according to the typology and their respective substitutions and inclusions. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018-12-04 |
dc.date.accessioned.fl_str_mv |
2019-01-15T13:38:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PAULA, R. L. G. Estudo cristalográfico de berilos naturais. 2018. 164 f. Dissertação (Mestrado em Fisica) - Universidade Federal de Goiás, Goiânia, 2018. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/9227 |
identifier_str_mv |
PAULA, R. L. G. Estudo cristalográfico de berilos naturais. 2018. 164 f. Dissertação (Mestrado em Fisica) - Universidade Federal de Goiás, Goiânia, 2018. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/9227 |
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