ISSN:
1572-9540
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract 57Fe-Mössbauer and DTA study of several oxide glasses has revealed that there exists a linear relationship between Tg(glass transition temperature) and δ (quadrupole splitting) of Fe3+, which is substituted for individual NWF(network former), e.g., V5+, Ti1+, Te1+, Al3+, Ca3+ and B(III). The linear relationship named “Tg-δ rule” is expressed by Tg=aδ+b, which indicates that Tg of oxide glasses is closely correlated to the asymmetry or local distortion of NWF-oxygen polyhedra. The “Tg-δ rule” also holds for the γ-ray irradiated tellurite glasses and for the glass-ceramics of calcium aluminate.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02401899
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