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El-Mallawany, Raouf, Yousef, Samir A., El-Shaer, Abdelhamid, Elabd, Hanan A.. (1402). Elastic moduli of some rare-earth doped tellurite glasses. , 17(5), -. doi: 10.57647/J.JTAP.2023.1705.47
Raouf El-Mallawany; Samir A. Yousef; Abdelhamid El-Shaer; Hanan A. Elabd. "Elastic moduli of some rare-earth doped tellurite glasses". , 17, 5, 1402, -. doi: 10.57647/J.JTAP.2023.1705.47
El-Mallawany, Raouf, Yousef, Samir A., El-Shaer, Abdelhamid, Elabd, Hanan A.. (1402). 'Elastic moduli of some rare-earth doped tellurite glasses', , 17(5), pp. -. doi: 10.57647/J.JTAP.2023.1705.47
El-Mallawany, Raouf, Yousef, Samir A., El-Shaer, Abdelhamid, Elabd, Hanan A.. Elastic moduli of some rare-earth doped tellurite glasses. , 1402; 17(5): -. doi: 10.57647/J.JTAP.2023.1705.47

Elastic moduli of some rare-earth doped tellurite glasses

Journal of Theoretical and Applied Physics
دوره 17، شماره 5، بهمن و اسفند 2023  XML
نوع مقاله: Scientific Research Manuscript
شناسه دیجیتال (DOI): 10.57647/J.JTAP.2023.1705.47
نویسندگان
Raouf El-Mallawany email orcid 1؛ Samir A. Yousef1؛ Abdelhamid El-Shaer2؛ Hanan A. Elabd1
1Physics Department, Faculty of Science, Menoufia University, Menoufia, Egypt.
2Physics Department, Faculty of Science, Kafreelshikh University, Kafreelshikh, Egypt.
چکیده
Samarium oxide (Sm2O3) and ytterbium oxide (Yb2O3) doped tungsten-tellurite glasses (TWSm), (TWYb) in the forms of 80 (TeO2) - (20-x) (WO3) - x (Sm2O3) and 80 (TeO2) - (20-x) (WO3) - x (Yb2O3) with x = 0, 1.0, 2.0, 3.0, 4.0 and 5.0 mol% were prepared by the melt-quenching technique. The XRD analysis for the two prepared glass systems verified the samples’ amorphous nature. The glass density ( ρ ) was measured by the Archimedes method. Both ( ρ ) and the molar volume (VM) of the two prepared systems showed an increase with increasing the concentrations of dopants  Sm3+ and Yb3+. Longitudinal VL and shear VS wave velocities were measured at  5 MHz frequency using the pulse-echo technique. Longitudinal (L), shear (G), bulk (K), and Young’s moduli ( E ) have been founded. Moreover, Poisson’s  (σ), Debye temperature (θD), softening temperature (TS), micro-hardness (H) have been founded for every glass sample.   Elastic moduli showed an increase with increasing dopants concentration of (Sm2O3) or  (Yb2O3). Moreover, the bulk modulus of (TWSm) glasses was higher than (TWYb) glasses. Mechanical properties of  (TWSm) and (TWYb) are crucial parameter in manufacturing optical fibers.  
کلیدواژه‌ها
Glasses؛ Tellurite؛ Rare Earth؛ Elastic Moduli
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تعداد مشاهده مقاله: 305


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