Article
Materials Science, Ceramics
M. S. Sadeq, T. A. Elmosalami, M. A. Abdo
Summary: In this study, the impacts of sunlight on different optical parameters of borosilicate glasses containing nickel, barium, and cadmium oxides were investigated. It was found that the absorbance of the glass samples showed a decreasing behavior, particularly in the UV range, under solar irradiation. The changes in the optical parameters were insignificant, confirming the stability of the glasses and making them suitable candidates for optical applications.
CERAMICS INTERNATIONAL
(2022)
Article
Construction & Building Technology
M. Humaid, J. Asad, A. Aboalatta, S. K. K. Shaat, H. Musleh, Kh. Ramadan, Y. Alajerami, N. Aldahoudi
Summary: A novel technique was developed to produce borosilicate glass samples with varying concentrations of PbO from 90% solid waste. The method involved obtaining PbO from spent lead-acid batteries and using waste glass from vehicles as the glass matrix. The resulting glass samples demonstrated potential as an alternative to traditional manufacturing processes and had strong shielding properties against gamma and neutron radiation.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Ceramics
Mohammad Khoeini, Alireza Kolahi, Saeed Hesaraki
Summary: This study investigates the effect of replacing CaO with BaO on mechanical properties, bioactivity, and cell adhesion of SiO2-B2O3-Al2O3-P2O5-CaO-Na2O-based glass. The results show that the hardness of the glass increases with the replacement of barium oxide, while the fracture toughness remains the same. The BaO-incorporated glass exhibits reduced in vitro bioactivity compared to the base glass, but still maintains cell propagation and proliferation.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Mengjia Deng, Xiaoyu Xia, Juanli Deng, Kaiyue Hu, Chenghua Luan, Xu Ma, Shangwu Fan, Peng Wang
Summary: Lead glass was found to effectively protect C/C substrates from oxidation in the full temperature range, while bismuth glass showed poor oxidation resistance at 500 degrees C due to phase separation.
Article
Materials Science, Multidisciplinary
Seyed Sadegh Khayat Ardestani, Valiollah Dashtizad, Ali Kaflou
Summary: Glass-metal seals are widely used in various industries, and the study focused on sealing Kovar alloy to borosilicate glass using an intermediate oxide layer. The optimal sealing conditions were identified as a nitrogen atmosphere, a temperature of 950 degrees C, and a time of 28 min. The study also found that sealing temperature and time significantly affect the seal strength, with the maximum strength achieved at 1000 degrees C for 4 min, resulting in a shear strength of 9.84 MPa.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Ceramics
Seyed Sadegh Khayat Ardestani, Valiollah Dashtizad, Ali Kaflou
Summary: The study examined the effects of process variables including temperature, time, and atmosphere on the macroscopic soundness of glass-metal seals, particularly focusing on the sealing of borosilicate glass to Kovar alloy. The research found that by limiting the sealing temperature and time, the tendency for bubble formation could be significantly decreased. Additionally, the soundness of the tubular butt joints was found to have an inverse correlation with the thickness of the metal tube and a direct correlation with the thickness of the glass tube. Fracture tests on tubular seals cooled at common rates revealed that failures often occurred inside the glass, characterized by circular fractures parallel to the seal interface. Structural analysis suggested compositional segregation in the glass near the interface and the presence of fayalite second phases nucleated on the interface.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Jae -Young Pyo, Wooyong Um, Jong Heo
Summary: This study investigated the effects of adding MnO and ZnO to a fabricated nuclear waste glass on the crystallization of molybdates and structure of the glass. The results confirmed that the addition of MnO and ZnO increased the solubility of Mo in the glass and inhibited the formation of alkali molybdate crystals. The addition of MnO further improved the solubility of Mo. These findings are important for enhancing the chemical durability of the glass.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Ceramics
Hong Jia, Xincheng Zhang, Yibing Zhu, Yuping Zhang, Yanfei Hu, Xiaoyun Xu, Feng Peng, Yuquan Yuan, Zaijin Fang, Jianrong Qiu
Summary: Borosilicate glass doped with CsPbBr3 quantum dots enhances the stability of perovskite QDs, showing high emission yield. These composite materials can be used for highly efficient photodetectors.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
M. H. A. Mhareb, Muna Alqahtani, Y. S. M. Alajerami, Fatimh Alshahri, M. Sayyed, K. A. Mahmoud, Noha Saleh, N. Alonizan, M. S. Al-Buriahi, Kawa M. Kaky
Summary: The shielding features of 10TiO2-10SiO2-(80-x)B2O3-xBaO were studied, with the addition of barium oxide enhancing the performance of various shielding parameters while reducing the effectiveness removal cross-section of fast neutrons, mass stopping power, and projected range variation.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
Mikko Hongisto, Sonya Ghanavati, Arnaud Lemiere, Gregory Hauss, Shashank Boraiah, Louis Cornet, Angeline Poulon-Quintin, Dominique Pagnoux, Dominique Bernard, Jonathan Massera, Laeticia Petit, Veronique Jubera, Sylvain Danto
Summary: We have developed core-clad bioactive borosilicate fibers with round and rectangular cross-section profile by stacking and drawing glass slabs. Tens-of-meters-long fibers were successfully drawn, but rectangular ones suffered from elevated losses due to the enhanced corrosion caused by residual tensile stress. This study provides the first report on the effect of residual tensile stresses on the corrosion of rectangular fibers and highlights the importance of geometry in the biodegradation behavior of fiberglass.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Marina Konon, Tatiana Antropova, Nikita Zolotov, Tatiana Simonenko, Nikolay Simonenko, Elena Brazovskaya, Valery Kreisberg, Irina Polyakova
Summary: The chemical durability of phase-separated glasses in the Na2O-B2O3-SiO2-Fe2O3 system was studied in boiling 3M aqueous HCl solution. The coordination of Fe3+ cations affected the leaching behavior, and a correlation with the Yun-Bray-Dell model was observed. Certain glass compositions were suitable for through-leaching and obtaining porous glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
A. Manivannan, G. Saravanan, P. Ravisankar, Soumee Chakraborty, Kitheri Joseph, V Jayaraman
Summary: Enthalpy increment data were obtained for borosilicate and doped borosilicate glasses containing uranium oxides and plutonium surrogates. The specific heat of the glasses was calculated and compared, and the thermal stability and network structure of the glasses were investigated using micro Raman spectroscopy.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qichao Zhao, Jianfeng Li, Tingyu Zha, Penghui Zhang, Yi Long, Zaijin Fang
Summary: By modulating the borate content, low-temperature fluoro-borosilicate (FBS) glass was designed and used to fabricate active nano-crystallized glass ceramic (NGC) fibers with controllable precipitation of single-phase rare earth (RE)-fluoride nanocrystals. The FBS NGCs exhibited higher optical transmittance and luminescence efficiency compared to traditional FS NGCs. FBS glass was successfully used as the core glass to fabricate NGC fibers, demonstrating enhanced nanocrystal precipitation and upconversion luminescence. The designed FBS NGCs provided high-quality gain materials for a wide range of NGC fiber applications, including fiber lasers and sensors.
Article
Materials Science, Ceramics
J. D. Eales, A. M. T. Bell, D. A. Cutforth, A. A. Kruger, P. A. Bingham
Summary: This study prepared three series of borosilicate glasses, including simple ternary sodium borosilicate glasses, complex borosilicate glasses, and high-level radioactive waste analogue glasses. The results showed that iron exists mainly as Fe3+ in predominantly distorted tetrahedral structures, and it integrates into the borosilicate network preferentially through either the silicate sub-network or the borate sub-network. The concentration of iron does not affect the boron coordination, indicating the presence of competing tetrahedral avoidance hierarchies.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Kuo-Hao Lee, Yongjian Yang, Linfeng Ding, Benedikt Ziebarth, Mark J. Davis, John C. Mauro
Summary: The addition of alkali ions lowers the yield stress and changes the pressure dependence of shear modulus in multicomponent borosilicate glasses. Shear-induced densification is observed in both glasses, with 5-coordinated Si being the dominant mechanism for densification at high pressures. Boron atoms tend to experience plastic deformation in Borofloat 33, while plastic deformation occurs around alkali-rich regions in N-BK7, indicating different atomic-scale deformation mechanisms in these two glasses.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Juniastel Rajagukguk, Pintor Simamora, C. S. Saragih, Hairus Abdullah, Noto Susanto Gultom, Agung Imaduddin
JOURNAL OF NANOMATERIALS
(2020)
Article
Physics, Multidisciplinary
Juniastel Rajagukguk, Nursaida Harahap, Rappel Situmorang, S. Abd Hakim
Summary: Investigating the impact of doping rare-earth ions on the optical properties of glass, it was found that the bandgap energy decreased and the highest emission intensity was in the orange range. However, a significant decrease in lifetime was observed at higher concentrations of Sm3+ ions.
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2021)
Article
Chemistry, Physical
Nurdin Siregar, Motlan, Jonny Haratua Panggabean, Makmur Sirait, Juniastel Rajagukguk, Noto Susanto Gultom, Fedlu Kedir Sabir
Summary: This study investigated a dye-sensitized solar cell device using Mg-doped Zn thin films as photoanode and fruit extract of rose myrtle as the natural dye. The results showed that increasing the annealing temperature leads to larger particle size and slightly higher bandgap energy, with the Mg-ZnO photoanode annealed at 500 degrees Celsius achieving the maximum efficiency of 3.53%.
INTERNATIONAL JOURNAL OF PHOTOENERGY
(2021)
Article
Chemistry, Physical
J. Rajagukguk, C. S. Sarumaha, N. Chanthima, N. Wantana, S. Kothan, N. Wongdamnern, J. Kaewkhao
Summary: This paper reported on the spectrum results of Dy3+ ions-doped Li2O-AlF3-NaF-KF-P2O5 glass, showing absorption and emission characteristics and suggesting its suitability for optical device applications.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
C. S. Sarumaha, J. Rajagukguk, N. Wantana, N. Chanthima, R. Rajaramakrishna, J. Kaewkhao
Summary: Dy3+ doped oxy-fluoride phosphate glass was prepared and its optical properties were analyzed. The glass exhibited strong absorption and emitted yellow and blue light. The Judd-Ofelt study suggested its potential as an active laser medium.
INTEGRATED FERROELECTRICS
(2022)
Article
Engineering, Electrical & Electronic
Jonny Haratua Panggabean, Juniastel Rajagukguk, Donna Rajagukguk, Chayani Sarumaha, Jakrapong Kaewkhao
Summary: This work investigates the effect of calcium fluoride on lithium phosphate oxide glass. It is found that the addition of calcium fluoride reduces the density and refractive index of the glass. Spectroscopic analysis also reveals a decrease in the O-H groups in the glass after the addition of calcium fluoride.
INTEGRATED FERROELECTRICS
(2022)
Article
Engineering, Electrical & Electronic
O. Chaemlek, N. Kiwsakunkran, W. Boonpa, N. Wantana, T. Sareein, J. Rajagukguk, P. Limsuwan, J. Kaewkhao
Summary: Dy3+ ions doped CaO-ZnO-B2O3 glasses were synthesized using the melt quenching technique with various Dy2O3 concentrations to investigate their physical and optical properties. The results showed that density and molar volume increased with increasing Dy3+ concentration.
INTEGRATED FERROELECTRICS
(2022)
Article
Engineering, Electrical & Electronic
K. Boonin, Y. Yamsuk, P. Yasaka, S. Kothan, J. Rajagukguk, J. Kaewkhao
Summary: The research investigated the enhancement of trivalent europium ion on the spectroscopic properties of zinc barium tellurite oxyfluoride glasses under 8 different conditions. It was found that an increase in Eu2O3 content led to an extension of intensity of all absorption bands, with the strongest emission peak observed at 612 nm in the photoluminescence properties. These results suggest that Eu2O3 doping is applicable for laser materials and optical devices.
INTEGRATED FERROELECTRICS
(2022)
Article
Engineering, Electrical & Electronic
Juniar Hutahaean, Juniastel Rajagukguk, Donna Rajagukguk, Chayani Sarumaha, Nuanthip Wantana, Jakrapong Kaewkhao
Summary: The lithium fluorophosphate glasses doped with neodymium oxide were synthesized and investigated for their physical, FTIR, and absorption spectra. The addition of sodium fluoride content in the glass led to a decrease in density, refractive index, and optical bandgap energy.
INTEGRATED FERROELECTRICS
(2022)
Article
Engineering, Electrical & Electronic
J. Rajagukguk, C. S. Sarumaha, N. Wantana, J. Kaewkhao
Summary: In this study, oxyfluoride phosphate glass doped with Eu2O3 was synthesized and analyzed using various spectroscopic techniques. The results showed that the glass has excellent luminescence properties and potential for solid-state lighting applications.
INTEGRATED FERROELECTRICS
(2022)
Article
Materials Science, Multidisciplinary
Juniastel Rajagukguk, Jonny H. Panggabean, Mitra Djamal, C. S. Sarumaha, J. Kaewkhao
Summary: Nd3+-Er3+ co-doped lithium fluomphosphate (NdEr) glasses with broad-band emission were prepared by traditional melt quenching technique. The glasses were characterized using physical, absorption spectra, NIR luminescence properties, and XANES structural studies. The absorption spectra showed an increase with increasing Er2O3 concentration. The energy transfer mechanism between Nd3+ and Er3+ was studied using an energy level diagram. The XANES spectra confirmed the presence of Nd3+ and Er3+.
Article
Engineering, Electrical & Electronic
Juniastel Rajagukguk, Nursaida Harahap, Rahmaniar, Rappel Situmorang, S. Abd Hakim, Sunaryono
Summary: The research found that with the increasing concentration of Sm3+ in phosphate glass, certain properties decrease while others remain unchanged. XRD diffraction showed that the concentration of Sm3+ ions does not affect the diffraction pattern of Sm: phosphate glass.
INTEGRATED FERROELECTRICS
(2021)
Article
Engineering, Electrical & Electronic
Juniastel Rajagukguk, Rahmaniar, Nursaida Harahap, Rappel Situmorang, Deo D. Panggabean, Jakrapong Kaewkhao
Summary: The study involved the preparation of Dy-doped PbNaGd glasses through the melt-quenching method, with a focus on analyzing their physical properties and amorphous nature, as confirmed by XRD.
INTEGRATED FERROELECTRICS
(2021)
Article
Multidisciplinary Sciences
Noppadon Chamchoi, J. Rajagukguk, K. Teanchai, W. Siriprom
SURANAREE JOURNAL OF SCIENCE AND TECHNOLOGY
(2020)