RT Journal Article
T1 Blue thermoluminescence emission of annealed lithium rich aluminosilicates
A1 Correcher, V.
A1 Rodriguez Lazcano, Y.
A1 García Guinea, J.
A1 Crespo Feo, María Elena
AB The blue thermoluminescence (TL) emission of different thermally annealed (i) ß-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 1200°C) 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. ß-spodumene).
PB Springer
SN Issn: 0103-9733 ; Essn: 1678-4448
YR 2010
FD 2010-09
LK https://hdl.handle.net/20.500.14352/43525
UL https://hdl.handle.net/20.500.14352/43525
LA eng
NO Comisión Interministerial de Ciencia y Tecnología
DS Docta Complutense
RD 10 abr 2025