2007
DOI: 10.1016/j.jeurceramsoc.2006.04.143
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Thermal properties and crystallization behavior of some TeO2–K2O glasses

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Cited by 14 publications
(7 citation statements)
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“…8 that the amount of the CdTe 2 O 5 crystals formed in the glass also increases with the annealing temperature. The transformation of the metastable ␥-TeO 2 to stable ␣-TeO 2 was also observed in other TeO 2 -based glasses such as 0.95TeO 2 -0.05K 2 O , (1 − x)TeO 2 -xZnO glasses at temperatures above 430 • C and also 0.85TeO 2 -0.15WO 3 glasses at temperatures above 440 • C. 12,15,23 On the other hand almost no structural changes were observed in TeO 2 -BaO glasses heated to different annealing temperatures and the dominant ␥-TeO 2 phase at lower temperatures did not disappear but lost its intensity. 16 …”
Section: Xrd Resultssupporting
confidence: 54%
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“…8 that the amount of the CdTe 2 O 5 crystals formed in the glass also increases with the annealing temperature. The transformation of the metastable ␥-TeO 2 to stable ␣-TeO 2 was also observed in other TeO 2 -based glasses such as 0.95TeO 2 -0.05K 2 O , (1 − x)TeO 2 -xZnO glasses at temperatures above 430 • C and also 0.85TeO 2 -0.15WO 3 glasses at temperatures above 440 • C. 12,15,23 On the other hand almost no structural changes were observed in TeO 2 -BaO glasses heated to different annealing temperatures and the dominant ␥-TeO 2 phase at lower temperatures did not disappear but lost its intensity. 16 …”
Section: Xrd Resultssupporting
confidence: 54%
“…7 On the other hand glasses containing K 2 O content has shown that the T g , shifts to lower values as the K 2 O content increases. 15 As seen in Fig. 1, there are different number of peak crystallization temperatures (T p ) occurred at a range of 376-421 • C following the glass transition temperatures for three compositions.…”
Section: Dta Investigationsmentioning
confidence: 86%
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“…On the basis of these relevant literature and assuming that the spectral peaks between 0 and 200 cm −1 are the Boson peaks, there remains three unidentified peaks for the crystallized 0.95TeO 2 -0.05K 2 O and 0.90TeO 2 -0.10K 2 O glasses: at 226, 285 and 331 cm −1 . Based on the XRD results of these glasses in the heat-treated condition, 17 we believe that these Table 2 Raman band assignments for the (1 − x)TeO 2 -xK 2 O glasses 11,[22][23][24][25]29 Wave number (cm three unidentified spectral peaks might belong to the K 2 Te4O 9 phase.…”
Section: Xrd Resultsmentioning
confidence: 97%
“…In literature a binary TeO 2 -CdF 2 phase diagram does not exist but with the present investigation one of the possible glass forming compositions will be enlightened and studied which was found to be a non glass forming composition in earlier studies. 2,5 The glass formation in the binary TeO 2 + CdF 2 system in literature takes place with CdF 2 contents varying between none to 0.15 mol. 6 After the evaluation of the thermal properties with the help the differential thermal analysis (DTA) scans, the X-ray diffraction (XRD) and optical microscope and scanning electron microscopy/energy dispersive spectroscopy (Optical-SEM/EDS) characterizations of the glass were performed.…”
Section: Introductionmentioning
confidence: 99%