Blue thermoluminescence emission of annealed lithium rich aluminosilicates
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Física
2010
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| _version_ | 1876470271879151616 |
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| author | V. Correcher |
| author_facet | V. Correcher |
| contents | Blue thermoluminescence emission of annealed lithium rich aluminosilicates V. Correcher Y. Rodriguez- Lazcano J. Garcia- Guinea E. Crespo- Feo Física, Astronomía y Matemáticas Phosphors aluminosilicates thermoluminescence The blue thermoluminescence (TL) emission of different thermally annealed (i) β-eucryptite (LiAlSiO4), (ii) virgilite-petalite (LiAlSi5O12) and (iii) virgilite-petalite-bikitaite (LiAlSi10O22) mixed crystals have been studied. The observed changes in the TL glow curves could be linked to simultaneous processes taking place in the lithium aluminosilicate lattice structure (phase transitions, consecutive breaking linking of bonds, alkali self-diffusion, redox reactions, etc). The stability of the TL signal after four months of storage performed at RT under red light, shows big differences between annealed (12 hours at 1200ºC) and non-annealed samples. The fading process in non-annealed samples can be fitted to a first-order decay mathematical expression; however preheated samples could not be reasonably fitted due to the highly dispersion detected. The changes observed in the X-ray diffractograms are in the intensity of the peaks that denote modifications in the degree of crystallinity and, in addition, there are some differences in the appeareance of new peaks that could suppose new phases (e.g. β-spodumene). 2010 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46415798017 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.40 |
| format | Artículo científico |
| id | redalyc_46415798017 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Blue thermoluminescence emission of annealed lithium rich aluminosilicates V. Correcher Física, Astronomía y Matemáticas Phosphors aluminosilicates thermoluminescence Blue thermoluminescence emission of annealed lithium rich aluminosilicates V. Correcher Y. Rodriguez- Lazcano J. Garcia- Guinea E. Crespo- Feo Física, Astronomía y Matemáticas Phosphors aluminosilicates thermoluminescence The blue thermoluminescence (TL) emission of different thermally annealed (i) β-eucryptite (LiAlSiO4), (ii) virgilite-petalite (LiAlSi5O12) and (iii) virgilite-petalite-bikitaite (LiAlSi10O22) mixed crystals have been studied. The observed changes in the TL glow curves could be linked to simultaneous processes taking place in the lithium aluminosilicate lattice structure (phase transitions, consecutive breaking linking of bonds, alkali self-diffusion, redox reactions, etc). The stability of the TL signal after four months of storage performed at RT under red light, shows big differences between annealed (12 hours at 1200ºC) and non-annealed samples. The fading process in non-annealed samples can be fitted to a first-order decay mathematical expression; however preheated samples could not be reasonably fitted due to the highly dispersion detected. The changes observed in the X-ray diffractograms are in the intensity of the peaks that denote modifications in the degree of crystallinity and, in addition, there are some differences in the appeareance of new peaks that could suppose new phases (e.g. β-spodumene). 2010 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46415798017 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.40 |
| title | Blue thermoluminescence emission of annealed lithium rich aluminosilicates |
| topic | Física, Astronomía y Matemáticas Phosphors aluminosilicates thermoluminescence |
| url | https://www.redalyc.org/articulo.oa?id=46415798017 |