Mechanical, Structural and Crystallization Properties in Titanate Doped Phosphate Glasses
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Mechanical, Structural and Crystallization Properties in Titanate Doped Phosphate Glasses Kh. S. Shaaban1 · El Sayed Yousef2,3 · Safwat A. Mahmoud4 · E. A. Abdel Wahab5 · E. R. Shaaban5 Received: 28 March 2020 / Accepted: 4 May 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The authors reported the data found by FT-IR spectroscopy, ultrasonic velocities, DTA investigations of 5 Al2O3 – 2 5Li2O – (70 − x) P2O5 – x T iO2, (0 ≤ x ≤ 25 mol%) of the prepared glass samples. From FT-IR spectroscopy has been indicated the titanate doped phosphate glasses increase the produce of non-bridging oxygens. By ultrasonic velocities has been indicated that these velocities are decreased as well as elastic-moduli and density by the concentration of titanate. This behaviour due to decreasing the density, cross-link density, and increase in molar volume. By DTA the values of ( Tg), (Tc) and ( Tp) decrease this is due to a decrease the bond strength. A parent glass–ceramics of these glasses have been prepared, and investigate by XRD and SEM. The parent glass–ceramic of these glasses have been prepared and investigate by XRD. L i2P2O6 (lithium orthophosphate) crystalline phase is showed in glasses-free titanate and transformed into L iPO3 in glasses containing titanate. The surface morphology of glass–ceramic has been checked by scanning electron microscope and showed a nearly unchanging surface in glasses-free titanate and large interstitial pores in glasses containing titanate. Keywords Phosphate glasses · Titanate · FT-IR · XRD · SEM
1 Introduction Recently, many scientists have been studied the importance of preparing, describing the physical, and structural properties of phosphate glass systems [1, 2]. This is because of their unique physical and optical properties. These glasses have a higher feature than silicate, borate, aluminate, germinate, and arsenate glasses, this is because of their low melting temperature, and possess good optical properties [3]. Phosphate glasses doped with alkaline * Kh. S. Shaaban [email protected] 1
Chemistry Department, Faculty of Science, Al-Azhar University, P.O. 71452, Assiut, Egypt
2
Physics Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
3
Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
4
Physics Department, Faculty of Science, Northern Border University, Arar 91431, Saudi Arabia
5
Physics Department, Faculty of Science, Al - Azhar University, P.O. 71452, Assiut, Egypt
oxide as Li2O produce lithium phosphate glasses [4–6]. Properties, and applications of lithium phosphate glasses are used in micro-batteries and in electro devices [4–6]. Phosphate glasses have important features than others, it their ability to doped with most of transition metal oxides [7, 8]. This importance makes the phosphate glasses useful in many applications as laser hosts, nuclear shielding, and biocompatible materials [9]. Phosphate
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