| Texto completo | |
| Autor(es): |
Nalin, Marcelo
;
Albino, Leonardo V.
;
Lodi, Thiago A.
;
Orives, Juliane R.
;
Marcondes, Lia M.
;
Habib, Adamu A.
;
Acosta, Maria Helena R.
;
Zanotto, Edgar D.
;
Franco, Douglas F.
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALS HORIZONS; v. N/A, p. 5-pg., 2025-04-17. |
| Resumo | |
This letter reports a novel method for synthesizing RE3Ga5O12, RE3Al5O12, and RE3Fe5O12 single-crystal garnets, where RE refers to rare earth elements, including Sc and Y. The garnets are crystallized upon cooling melts of heavy metal oxide glass-forming compositions containing the desired rare earth element. The novelty of this method lies in its ability to reproducibly obtain cubic single-crystal garnets doped with different rare earth elements using the same chemical route, with variations only in the melting temperature and cooling rate. A supersaturated composition in rare earth elements is melted at similar to 1200 degrees C. During the cooling process, cubic crystals precipitate and grow from the supercooled liquid. A unique feature of this approach is that the resulting micrometric, almost monodispersed crystals are uniformly distributed within a residual glass matrix that can be easily etched away. A series of garnets were synthesized and characterized using several techniques. The main details for each family of garnets are presented herein. (AU) | |
| Processo FAPESP: | 13/07793-6 - CeRTEV - Centro de Pesquisa, Tecnologia e Educação em Materiais Vítreos |
| Beneficiário: | Edgar Dutra Zanotto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 23/09906-4 - Desenvolvimento de novas metodologias para fabricação de fibras ópticas a partir de vidros exóticos |
| Beneficiário: | Thiago Augusto Lodi |
| Modalidade de apoio: | Bolsas no Brasil - Programa Fixação de Jovens Doutores |
| Processo FAPESP: | 23/01625-6 - Desenvolvimento de novas metodologias para fabricação de fibras ópticas a partir de vidros exóticos |
| Beneficiário: | Marcelo Nalin |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |