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On the structural features of iron-phosphate glasses by Raman and EPR: Observation of superparamagnetic behavior differences in HfO2 or CeO2 containing glasses       
Yazarlar
Mevlüt Karabulut
Gebze Teknik Üniversitesi, Türkiye
A Popa
Türkiye
C Berghian Grosan
Türkiye
Doç. Dr. Hüseyin ERTAP Doç. Dr. Hüseyin ERTAP
Kafkas Üniversitesi, Türkiye
Mustafa Yüksek
Kafkas Üniversitesi, Türkiye
Sibel Tokdemir Öztürk
Gebze Teknik Üniversitesi, Türkiye
R Stefan
Türkiye
Özet
Structural features of hafnium or cerium doped iron borophosphate glasses have been studied by Raman and EPR spectroscopies. Hf and Ce are introduced into the composition as surrogates for Pu. Raman spectrum of Hf and Ce free base iron phosphate glass indicate that the glass network consisted mainly of Q1 units with contributions from Q2 units. The general features observed for base glass are maintained in the Raman spectra of Hf/Ce containing glasses with some modifications with increasing Ce/Hf content in the composition. The EPR spectra of Hf and Ce containing glasses show different features. Superparamagnetic domains were highlighted through EPR for all CeO2 containing glasses.
Anahtar Kelimeler
Iron phosphate glasses | Raman | EPR | Waste immobilization
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF MOLECULAR STRUCTURE
Dergi ISSN 0022-2860
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 09-2019
Cilt No 1191
Sayı 1
Sayfalar 59 / 65
Doi Numarası 10.1016/j.molstruc.2019.04.086
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S0022286019304892