Properties of Glass Materials

Hasanuzzaman, M.; Rafferty, Aran; Sajjia, M.; Olabi, Abdul–Ghani

doi:10.1016/b978-0-12-803581-8.03998-9

Cited by 59 publications

(33 citation statements)

References 15 publications

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“…Where ρ L is the density of double distilled water at room temperature, W A and W L are the weight of the glass samples in air and liquid. However, the molar volumes, V m has been also calculated using density values from equation (1) and then substituted in the following relation [48,50]…”

Section: Density and Molar Volumementioning

confidence: 99%

“…Now a days, glass and glass ceramics become more popular owing to their traditional as well as advanced technological applications. Glass is a noncrystalline transparent, brittle solid material with elevated resistance to water and chemicals [1]. Due to its brittle nature, glass has no plastic deformation, and breaks suddenly when subjected to a stress exceeding its elastic limit [2].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of [BaO-(10-x)ZrO₂-TiO₂-SiO₂-xCrO₃] type glass and glass ceramics

Fatima

Hussain

Gautam

et al. 2020

Journal of Asian Ceramic Societies

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Various glass compositions were prepared in a glassy system [25BaCO 3-(10-x) ZrO 2-20TiO 2-45SiO 2-xCrO 3 ] (x = 0, 2, 4, and 6) using melt-quenching technique. XRD patterns of glass and glass ceramics showed amorphous and crystalline nature. Density of glass and glass ceramics decreased from 3.4553 to 3.4381 g/cm 3 and 3.7485 to 3.1977 g/cm 3 with increasing concentration of CrO 3. DTA of the glasses revealed a shift in base line which suggests a change in specific heat and attributed to the glass transition temperature, T g. FTIR and Raman spectroscopic analysis indicated that an increasing doping of CrO 3 changes structural network by increasing number of nonbridging oxygens (NBO) within glassy matrix. These results revealed that bands toward low frequency side endorsed to the vibration of Ba 2+ metal cation, bending vibration of Si-O-Si and bonding formation of ZrO 2. Concentration of CrO 3, changed the microsture significantly and hence, a denser, fully developed mixed morphology was noticed with spherical grains of ZrO 2 , irregular shape of bazirite (BaZr 0.97 Ti 0.03 Si 3 O 9) phase and TiO 2 grains. Glass ceramic sample BZTS6C971 CrO 3 (x = 6) retains high value of dielectric constant, ~4555 due to space charge polarization. Hence, these glass ceramics might be useful for diverse applications such as in optical devices, electronic circuits, and multilayer ceramic capacitors.

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Section: Density and Molar Volumementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of [BaO-(10-x)ZrO₂-TiO₂-SiO₂-xCrO₃] type glass and glass ceramics

Fatima

Hussain

Gautam

et al. 2020

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

show abstract

“…W shaped-Strokes (Howard 1984) were done to polish the spherical surface by placing the lap over the mirror. Fe2O3 powder which reacts with the Pitch in such a way that the surface of the glass liquefies to fill the minuscule facets on the surface was used for polishing (Hasanuzzaman and Olabi 2016). Subsequently, the Ronchi test was done to check the spherical profile.…”

Section: Grinding Processmentioning

confidence: 99%

Development of a 0.25 m f/10 reflecting telescope consisting of a thin primary mirror and a friction drive

et al. 2020

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Modern astronomical telescopes are comprised of high-quality optics and superior mounting designs to meet the standards and challenges of observational astronomy. Cost of commercial telescopes is a constraint for developing countries like Sri Lanka to be involved in astronomical related research. The objective of this research was to study the technological methods used in fabricating telescopes and to implement those methods to make economical telescopes locally. Therefore, a f/10 focal ratio Newtonian telescope consisting of a computerized friction drive alt-azimuth mount was fabricated with a locally ground thin telescope primary mirror made from Soda-lime glass plate having 0.25 m diameter and 0.012 m thickness. Deformation characteristics, profile formation and optical performance of the telescope primary mirror were investigated using finite element analysis, Polarization and Ronchi pattern analyses, respectively. Resolution, slew rate, torque and slippage of the fabricated friction drive were studied using a Computer Aided Design (CAD) model and an empirical approach. It was found that the profile of the mirror is a perfect parabola. The mirror was supported by a mirror cell with eighteen floating points and resultant root mean square wave-front error of the mirror due to the supporting points is 3.735x10-7 m. The friction drive with the computer controller can position the telescope to a given angle with accuracies of 0.421 degrees on altitude axis and 0.03 degrees on azimuth axis. The total cost of production of the prototype telescope is about US$ 750.00. It is shown that there is a significant cost reduction and increased optical and mechanical performances of the telescope due to using the thin mirror and the friction drive mount. In this paper, the system design and the performance evaluation of the mechanical positioning and optical quality of the telescope are presented.

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“…Thanks to its wide temperature range, strength, and chemical endurance borosilicate became "The Glass" of laboratories. [20]. In addition to ~75 % SiO 2 and 8-12 % B 2 O 3 , alkaline earth containing BSGs have up to 5 % alkali, earth alkali, and Al 2 O 3 .…”

Section: Introduction To Bsgmentioning

confidence: 98%

Borosilikat Camlar

Karasu¹,

Demirel²,

Aydin³

et al. 2020

El-Cezeri Fen Ve Mühendislik Dergisi

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Thanks to their distinguished properties borosilicate glasses (BSGs) are preferred in many application fields: laboratory glassware, microwave glass cookware, high-quality beverage glassware, aquarium heaters, flashlights, spotlights (high-powered lighting products), high-intensity discharge lamps, telescopes, biomaterials, immobilization and disposal of radioactive wastes, microscope lenses and slides, art construction, aviation (airplanes, UAVs, missiles), etc. This work aims to present general information about BSGs.

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Properties of Glass Materials

Cited by 59 publications

References 15 publications

Synthesis and characterization of [BaO-(10-x)ZrO₂-TiO₂-SiO₂-xCrO₃] type glass and glass ceramics

Synthesis and characterization of [BaO-(10-x)ZrO₂-TiO₂-SiO₂-xCrO₃] type glass and glass ceramics

Development of a 0.25 m f/10 reflecting telescope consisting of a thin primary mirror and a friction drive

Borosilikat Camlar

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Properties of Glass Materials

Cited by 59 publications

References 15 publications

Synthesis and characterization of [BaO-(10-x)ZrO2-TiO2-SiO2-xCrO3] type glass and glass ceramics

Synthesis and characterization of [BaO-(10-x)ZrO2-TiO2-SiO2-xCrO3] type glass and glass ceramics

Development of a 0.25 m f/10 reflecting telescope consisting of a thin primary mirror and a friction drive

Borosilikat Camlar

Contact Info

Product

Resources

About

Synthesis and characterization of [BaO-(10-x)ZrO₂-TiO₂-SiO₂-xCrO₃] type glass and glass ceramics

Synthesis and characterization of [BaO-(10-x)ZrO₂-TiO₂-SiO₂-xCrO₃] type glass and glass ceramics