Numerical simulation of the structural relaxation characteristics of K-LCV161 glass

Zhu, Xiuxi; Shu, Chengsong; Zheng, Qiuju; Yin, Shu

doi:10.1016/j.jnoncrysol.2021.121050

Cited by 9 publications

(8 citation statements)

References 19 publications

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“…The R f (10) plotted as a function of σ for chalcogenide glasses (Table 1) is depicted in Figure 4, along with data for some oxide glasses [41][42][43][44][45][46][47][48][49] and organic polymers, such…”

Section: Discussionmentioning

confidence: 99%

“…The logarithmic time interval (LTI) for Δ T = 10 K, calculated by Equation () for ß = 0.9 and 0.5 (blue solid lines). Points correspond to the Tool–Narayanaswamy–Moynihan (TNM) parameters reported for chalcogenide glasses (see Table 1), 11–35 oxide glasses, 41–49 and organic polymers: polystyrene (PS), 50,51 polycarbonate (PC), 52 polyvinyl acetate (PVAc), 53,54 epoxy resin, 55 polymethyl methacrylate (PMMA), 51,53 polyethylene terephthalate (PET), 56 and polyvinyl chloride (PVC) 51 …”

Section: Discussionmentioning

confidence: 99%

“…The R f (10) plotted as a function of σ for chalcogenide glasses (Table 1) is depicted in Figure 4, along with data for some oxide glasses 41–49 and organic polymers, such as polystyrene (PS), 50,51 polycarbonate (PC), 52 polyvinyl acetate (PVAc), 53,54 epoxy resin, 55 polymethyl methacrylate (PMMA), 51,53 polyethylene terephthalate (PET), 56 and polyvinyl chloride (PVC) 51 …”

Section: Discussionmentioning

confidence: 99%

“…The isothermal relaxation rate for ΔT = 10 K, calculated by Equation ( 13) for ß = 0.9 and 0.5 (blue solid lines). Points correspond to the Tool-Narayanaswamy-Moynihan (TNM) parameters reported for chalcogenide glasses (see Table 1), oxide glasses, [41][42][43][44][45][46][47][48][49] and organic polymers: polystyrene (PS), 50,51 polycarbonate (PC), 52 polyvinyl acetate (PVAc), 53,54 epoxy resin, 55 polymethyl methacrylate (PMMA), 51,53 polyethylene terephthalate (PET), 56 and polyvinyl chloride (PVC). 51 as polystyrene (PS), 50,51 polycarbonate (PC), 52 polyvinyl acetate (PVAc), 53,54 epoxy resin, 55 polymethyl methacrylate (PMMA), 51,53 polyethylene terephthalate (PET), 56 and polyvinyl chloride (PVC).…”

Section: F I G U R Ementioning

confidence: 99%

“…Points correspond to the Tool-Narayanaswamy-Moynihan (TNM) parameters reported for chalcogenide glasses (see Table 1), oxide glasses, [41][42][43][44][45][46][47][48][49] and organic polymers: polystyrene (PS), 50,51 polycarbonate (PC), 52 polyvinyl acetate (PVAc), 53,54 epoxy resin, 55 polymethyl methacrylate (PMMA), 51,53 polyethylene terephthalate (PET), 56 and polyvinyl chloride (PVC). 51 overall effects of m, x, and ß on R f (10) seem to be more complex than expected from relatively simple two-parameter correlations.…”

Section: F I G U R Ementioning

confidence: 99%

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Structural relaxation in chalcogenide glasses

Málek

2022

J Am Ceram Soc.

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The structural relaxation of chalcogenide glasses is discussed within Tool-Narayanaswamy-Moynihan (TNM) formalism. The TNM parameters for more than 70 different glassy compositions are compared on the basis of the relaxation rate defined as R f (ΔT) = −(dT f /dlogt) i at the inflection point of the isothermal relaxation curve plotted on a logarithmic timescale. The R f (ΔT) depends on the TNM parameter ß and the parameter σ, combining the nonlinearity parameter x, the effective activation energy h* or the fragility m. It is shown that R f (10) estimated at 10 K below T g is useful for the prediction of structural relaxation kinetics in different amorphous materials. The chalcogenide glasses are, for example, compared with oxide glasses and organic polymers. For all these materials, the R f (10) versus σ plot shows a well-defined pattern that is thoroughly discussed.

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