Synthesis and physical properties of glasses in the Sb2O3–PbCl2–MoO3 system

Goumeidane, F.; Legouera, M.; Iezid, M.; Poulain, Marcel; Nazabal, Virginie; Lebullenger, Ronan

doi:10.1016/j.jnoncrysol.2011.07.012

Cited by 17 publications

(11 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To avoid the influence of electrode polarization effects and for better understanding of the electrical relaxation, the modular spectroscopy concept is used [22]. The static relative permittivity is determined using both the modular spectroscopy [9,10,22] and Kramers-Kronig relations.…”

Section: Methodsmentioning

confidence: 99%

“…Antimony oxide participates in the glass network with trigonal pyramidal [:SbO 3 ] structural units sharing corners which can be viewed as tetrahedrons with the oxygen at three corners and a lone pair of electrons at the fourth corner [8,9]. Such structural unit can be also considered as pseudo-tetrahedral unit with one vertex occupied by the lone pair of electrons [8].…”

Section: Introductionmentioning

confidence: 99%

“…In the Sb 5+ state, ions participate in the glass network as octahedral [SbO 6 ] units [8] or as singly positive [Sb 5+ O 4 ] + , 4-coordinated structural units [10,11]. The MoO 3 → Sb 2 O 3 substitution brings an excess of anionic oxygen which increases the number of non-bridging oxygen [9,12]. Molybdenum ions exist in two states as Mo 5+ and Mo 6+ [10].…”

Section: Introductionmentioning

confidence: 99%

“…Last years an intensive attention was given to antimonite glasses because of their similar physical properties to widely used tellurite glasses without specific problems related to tellurium toxicity [1][2][3][4][5][6][7][8][9][10][16][17][18]. They have a broad thermal stability range and so they are also suitable for fiber drawing [3].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Electrical, dielectric, and optical properties of Sb 2 O 3 –Li 2 O–MoO 3 glasses

Kubliha

Soltani

Trnovcová

et al. 2015

Journal of Non-Crystalline Solids

Self Cite

View full text Add to dashboard Cite

Temperature and frequency dependencies of DC and AC conductivities, dielectric response, static permittivity, optical absorption edge, infrared absorption spectrum, density, and temperatures of glass transition and crystallization for lithium molybdenum-antimonite glasses, (80 − x)Sb 2 O 3 -20Li 2 O-xMoO 3 , where x = 0-40, are measured and discussed. The DC conductivity increases with increasing concentration of MoO 3 . At 150°C, it ranges from 5 × 10 −11 S/m up to 3 × 10 −8 S/m. Polaron hopping between Mo 5+ and Mo 6+ ions contributes, probably, to the DC conductivity. Ionic conductivity by Li + ions is also present. The conduction activation energy monotonously decreases from 1.15 eV, at x = 5, down to 0.91 eV, at x = 40. In all glasses with x N 0, the conduction activation energy is close to a half of the indirect allowed optical gap. The pre-exponential factor, σ 0 , goes through a sharp maximum close to the composition (x = 20) with both the highest glass transition temperature and the largest thermal stability range. The frequency dependence of the AC conductivity is composed of three components -the DC conductivity and two AC components. For x = 35 and 40, the activation energy of electrical relaxation is equal to 0.954 ± 0.008 eV and the pre-exponential factor of relaxation times is equal to (4 ± 1) 10 −14 s. The static relative permittivity ranges from 17.4 to 23.0. Strong extrinsic absorption bands in infrared region originate from hydroxyl ions, CO 2 impurities, and silicon-oxygen vibrations. The UV-visible indirect allowed absorption edge shifts from 2.6 eV to 2.1 eV with increasing MoO 3 content. With increasing MoO 3 content the glasses darken, from a light yellow color, at x = 0, to a deep brown color, at x = 40.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrical, dielectric, and optical properties of Sb 2 O 3 –Li 2 O–MoO 3 glasses

Kubliha

Soltani

Trnovcová

et al. 2015

Journal of Non-Crystalline Solids

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently, the properties of 70TeO 2 -10Sb 2 O 3 -20PbCl 2 composition are reported [20]. Ternary glasses have been synthesized and studied in the Sb 2 O 3 -PbCl 2 -MoO 3 system [21]. Barium chloride-oxide tellurite glasses, BaCl 2 -BaO-TeO 2 , are studied by Sokolov et al in 2009 [22].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of transparent chloroborosilicate nanoglass-ceramics: Crystallization and growth mechanism of BaCl₂ nanocrystals

Shasmal

Karmakar

2015

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

a b s t r a c tOxyfluoride glass-ceramics are extensively being investigated for their excellent optical properties and widespread use in photonic applications. But oxychloride systems are scarcely studied although they are potential candidates for those fields. Here we report chloroborosilicate glass system SiO 2 -B 2 O 3 -BaO-K 2 O-Al 2 O 3 -BaCl 2 (mol%) within which BaCl 2 nanocrystals have been generated by melt-quench technique followed by heat treatment. Samples were characterized by differential scanning calorimetry, X-ray diffraction, infrared and UV-vis spectroscopy, elastic constants measurement, etc. Micro-and nanostructures were analyzed by using FESEM, TEM and SAED. Formation and growth mechanism of BaCl 2 nanocrystals have been demonstrated with the help of schematic representations. Size (7-47 nm) and morphology of the nanocrystals were found to be controlled by temperature and heat-treatment time. Activation energy for crystallization was determined by non-isothermal method using DSC and found to be 510 kJ/mol. Chloroborosilicate glasses containing BaCl 2 nanocrystals having low-phonon energy (∼350 cm −1 ) are promising for different photonic applications.

show abstract

Anomalous properties of chloroborosilicate glasses in the K2O–BaO–Al2O3–B2O3–SiO2–BaCl2 system

2015

View full text Add to dashboard Cite

A series of chloroborosilicate glass having composition (in mol%) (100−x)(42SiO 2-30B 2 O 3-20BaO-4K 2 O-4Al 2 O 3)-xBaCl 2 (where x = 0−30) has been prepared by the melt quench technique yielding transparent monolithic glasses up to x = 22.5. Structural investigation by infrared reflection and UV-vis-NIR absorption revealed the bridging action of Cl atom and decrease in non-bridging oxygens with the increase in BaCl 2 content. Thermal properties (T g , T d and T s) were measured by the dilatometry and softening point measurement. Viscosity was calculated using the Vogel-Fulcher-Tammann equation. Elastic constants were measured by the ultrasonic method. Other mechanical properties like hardness, fracture toughness were also measured. All of the thermal and mechanical properties exhibited a similar trend of anomalous variation as a function of the BaCl 2 content, showing maxima at 10 mol% and a sharp increase at 25 mol% BaCl 2 content. The anomaly has been explained by the structural point of view with the help of the aforementioned spectroscopic data.

show abstract

Synthesis and physical properties of glasses in the Sb2O3–PbCl2–MoO3 system

Cited by 17 publications

References 22 publications

Electrical, dielectric, and optical properties of Sb 2 O 3 –Li 2 O–MoO 3 glasses

Electrical, dielectric, and optical properties of Sb 2 O 3 –Li 2 O–MoO 3 glasses

Synthesis of transparent chloroborosilicate nanoglass-ceramics: Crystallization and growth mechanism of BaCl₂ nanocrystals

Anomalous properties of chloroborosilicate glasses in the K2O–BaO–Al2O3–B2O3–SiO2–BaCl2 system

Contact Info

Product

Resources

About

Synthesis and physical properties of glasses in the Sb2O3–PbCl2–MoO3 system

Cited by 17 publications

References 22 publications

Electrical, dielectric, and optical properties of Sb 2 O 3 –Li 2 O–MoO 3 glasses

Electrical, dielectric, and optical properties of Sb 2 O 3 –Li 2 O–MoO 3 glasses

Synthesis of transparent chloroborosilicate nanoglass-ceramics: Crystallization and growth mechanism of BaCl2 nanocrystals

Anomalous properties of chloroborosilicate glasses in the K2O–BaO–Al2O3–B2O3–SiO2–BaCl2 system

Contact Info

Product

Resources

About

Synthesis of transparent chloroborosilicate nanoglass-ceramics: Crystallization and growth mechanism of BaCl₂ nanocrystals