Evaluation of chemical durability, thermal properties and structure characteristics of Nb–Sr-phosphate glasses by Raman and NMR spectroscopy

Hsu, Shih Ming; Wu, Jiahui; Yung, S.W.; Chin, T. S.; Zhang, T.; Lee, Y.M.; Chu, Chin Ming; Ding, Jie

doi:10.1016/j.jnoncrysol.2011.08.006

Cited by 58 publications

(22 citation statements)

References 26 publications

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“…The observed decrease in limit strain can be attributed to the resulted increase in rigidity and the glass network connectivity. Similar results were found by Hsu et al [17] and by Hand and Tadjiev [18] when studying, respectively Nb-Srphosphate glasses and Mg-silicate glasses.…”

Section: Effect Of the Chemical Constituents Of The Glass On The Mechsupporting

confidence: 89%

Study of the mechanical and chemical properties of potassium manganese phosphate glasses

et al. 2018

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Abstract. Homogeneous phosphate glasses having the general formula 20K 2 O-xMnO-(80-x)P 2 O 5 were synthesized using a melt-quenching method. The amorphous nature of the samples was asserted by X-ray diffraction. The glasses are studied in order to evaluate the influence of MnO addition on the chemical and mechanical properties, such as, dissolution rate, average compressive strength (Rc), Young's modulus (E) and limit strain (Ɛ lim ). Some studies show that the addition of MnO significantly reduces the degradation rate (D R ) of soluble phosphate glasses and enhanced chemical stability of both alkali-resistance and acid-resistance. MnO interfere with the chemical structure of the glass, and consequently improve their mechanical properties. Indeed, the mechanical measurements showed that the glass structure was modified by the addition of MnO oxide, becoming more rigid, and as a result, increasing the compressive strength (Rc), Young's modulus (E). These new materials could be an important opportunity for applications in the fields of building, construction, civil engineering, etc…

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Section: Effect Of the Chemical Constituents Of The Glass On The Mechsupporting

confidence: 89%

Study of the mechanical and chemical properties of potassium manganese phosphate glasses

et al. 2018

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“…In addition, because of the function of niobium as a glass network former in the Na 2 O-Al 2 O 3 -TiO 2 -Nb 2 O 5 -P 2 O 5 glass system, niobium more effectively improves the chemical durability than titanium [8]. It has been proposed that the dissolution rate is well controlled in Nb 2 O 5 -SrO-P 2 O 5 glass by adding Nb 2 O 5 [9]. The solubility of CaO-P 2 O 5 -Na 2 O glasses has been suggested to be altered by changing the CaO/Na 2 O ratio [10].…”

Section: Introductionmentioning

confidence: 99%

Structure and physicochemical properties of CaO–P2O5–Nb2O5–Na2O glasses

Maeda

Lee

Miyajima

et al. 2016

Journal of Non-Crystalline Solids

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“…With increase in ZnO content, the intensity of NbO 4 and NbO 6 bands decreased and increased, respectively. This decrease in coordination number from 6 to 4 suggests that niobia structurally changed its role from network former to network modier 28,30) . In addition, the increase in glass forming ability, along with the higher af nity of zinc to coordinate with phosphate groups (higher electronegativity) con rmed that Zn 2+ ion could crosslink phosphate groups together by forming P-O-Zn bonds and therefore acting as a network former 24,25) .…”

Section: Resultsmentioning

confidence: 99%

Preparation of Antibacterial ZnO-CaO-P2O5-Nb2O5 Invert Glasses

et al. 2016

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ZnO-CaO-P 2 O 5 -Nb 2 O 5 invert glasses, with ZnO substituted for CaO, were successfully prepared using a melt-quenching method. Their structures, dissolution behaviors, and antibacterial abilities were evaluated. Niobate switched its role of network former to modi er with increasing ZnO content, as Zn 2+ ions preferentially coordinated with phosphate groups. In parallel, with increasing content of ZnO in the glasses, P-O-Zn bonds were formed, which crosslinked phosphate groups with ZnO acting as a network former. As a result, the glass-forming ability and chemical durability of the glasses were improved. The glasses showed antibacterial ability to gram-positive and -negative bacteria.

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Evaluation of chemical durability, thermal properties and structure characteristics of Nb–Sr-phosphate glasses by Raman and NMR spectroscopy

Cited by 58 publications

References 26 publications

Study of the mechanical and chemical properties of potassium manganese phosphate glasses

Study of the mechanical and chemical properties of potassium manganese phosphate glasses

Structure and physicochemical properties of CaO–P2O5–Nb2O5–Na2O glasses

Preparation of Antibacterial ZnO-CaO-P<sub>2</sub>O<sub>5</sub>-Nb<sub>2</sub>O<sub>5</sub> Invert Glasses

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