A study of lattice defects in solids belonging to Al2O3−B2O3 and Al2O3−SiO2 systems by thermoluminescence experiments |
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| Authors: | P Brovetto A Delunas V Maxia M Salis G Spano D Mazza M Vallino A Delmastro |
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| Institution: | (1) Gruppo Nazionale Struttura della Materia, Cagliari, Italia;(2) Istituto di Fisica Superiore dell'Università, Cagliari, Italia;(3) Dipartimento di Scienza dei Materiali e Ingegneria Chimica del Politecnico, Torino, Italia |
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| Abstract: | Summary Spectrally resolved thermoluminescent emission has been investigated in solids belonging to Al2O3−B2O3 and Al2O3−SiO2 systems. These solids, which are characterized by a structure like that of alumino-silicate mullite, contain a high density
of oxygen and aluminum or boron lacunae. This fact favours the occurrence of both-sign interstitial ions acting as carrier
traps. The results show a close similarity with those obtained when studying, with the same experimental method, the thermoluminescent
emission of alumina. The overall analysis of data allows for reliable conclusions on the nature of crystal defects in these
materials. |
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| Keywords: | Thermoluminescence |
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