Article
Materials Science, Multidisciplinary
Toshinori Okura, Yuki Ota, Naoya Yoshida, Kimihiro Yamashita
Summary: Novel K+ ion conducting glass-ceramics were produced via a glass-making technique, and it was found that K+ ions predominantly substitute mobile Na+ ions for conduction.
Article
Materials Science, Ceramics
Ryogo Nakamori, Naoki Kawano, Daisuke Nakauchi, Takumi Kato, Daiki Shiratori, Hiroyuki Fukushima, Yuma Takebuchi, Kenji Shinozaki, Takayuki Yanagida
Summary: Tellurite glass and its glass-ceramics were prepared and their luminescence properties were evaluated. The highest quantum yield was obtained for Tellurite glass, while the glass-ceramic TeGC455 showed the highest integrated scintillation intensity.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Zizhen Feng, Jian Zhang, Xin Xu, Tao Zheng, Yanyan Guo, Jingwen Lv
Summary: This study prepared glass ceramics containing Pr3+ with red photoluminescence properties, and potential applications in mechanoluminescence were observed.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
Xiaoxuan Luo, Aditya Rawal, Muhammad Saad Salman, Kondo-Francois Aguey-Zinsou
Summary: This paper reports on a method to enhance the Na+ ionic conductivity in NaBH4 by engineering a conductive interface. By reacting with B2H6, the ionic conductivity of NaBH4 is increased by 5 orders of magnitude at room temperature. This enhancement is attributed to the formation of a Na2B12H12 layer on the surface of alpha-NaBH4 particles. The resulting NaBH4@ Na2B12H12 heterostructure exhibits a high ionic conductivity of 10(-4) S cm(-1) at 115 degrees C, surpassing pristine NaBH4, and shows potential as a solid-state electrolyte for all Na solid-state batteries.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Ceramics
E. M. Ahmed, N. A. El-Ghamaz, A. L. Waly
Summary: A group of glass and glass ceramic solids with specific compositions were prepared by rapid quenching and studied for their physical and chemical properties. The samples exhibited random environments and various phosphate groups and bands were detected. The density, molar volume, and thermal stability of the samples were found to be influenced by the constituent dopant molecules, showing behavior consistent with theoretical values. The samples also showed diamagnetic properties and emitted different colors of light when excited by specific wavelengths.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Daxiao Wang, Qi Zhang, Chang Chen, Menglei Su, Shusheng Zhang, Wei Wei
Summary: A tri-doped fluorosilicate glass-ceramic with thermal conductivity of 2.69 W m-1 K-1 was prepared for warm WLED, showing green, red, and blue light during devitrification process and significant enhancement in photoluminescence intensity.
Article
Materials Science, Ceramics
Ekaterina Koroleva, Andrey Lipovskii, Svetlana Petrunenkova, Dmitry Tagantsev, Sergey Vakhrushev
Summary: The study focused on the dielectric response and effect of heat treatment on the properties of a potassium-sodium-niobium-silicate glass with a high niobium content. Heat treatment resulted in the formation of sodium niobate nanocrystals, leading to improved dielectric performance. The crystallization process occurred in two stages, with anisotropic nanocrystals and no new nuclei during crystallization.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Review
Materials Science, Multidisciplinary
C. Venkateswaran, H. Sreemoolanadhan, Rahul Vaish
Summary: The lithium aluminosilicate system (LAS) has been explored for nearly seven decades due to its anomalous properties and commercial significance. Current research focuses on structural features, processing of transparent, nanocrystalline, low thermal expansion glass-ceramic (LEGC), and extending the application portfolio of LAS system.
INTERNATIONAL MATERIALS REVIEWS
(2022)
Article
Materials Science, Ceramics
J. Schilm, D. Wagner, C. Heubner, U. Langklotz, C. W. Lee, H. S. Kang, J. W. Park, M. Kusnezoff
Summary: This study demonstrates the preparation of sodium solid electrolytes through the glass-ceramic powder route, which exhibit high ionic conductivity and dense microstructure. The material shows the separation between sintering and crystallization, achieving the preparation process at low temperatures.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Optics
Siti Aisyah Abdul Wahab, Khamirul Amin Matori, Mohd Hafiz Mohd Zaid, Mohd Mustafa Awang Kechik, Nuraidayani Effendy, Rahayu Emilia Mohamed Khaidir
Summary: This article reports the fabrication and characterization of Zn2SiO4:Co2+ using different concentrations of Co3O4 as a dopant. The results showed that the dopant incorporation led to bluer emission and increased density. XRD analysis confirmed the stable state of willemite phase, while optical absorption and photoluminescence spectroscopy revealed the presence of distinct absorption bands and emission peaks. The study also demonstrated the potential to produce blue emissions using Zn2SiO4:Co2+ samples.
Article
Materials Science, Ceramics
Toshinori Okura, Koji Kawada, Kimihiro Yamashita
Summary: The effects of crystallization conditions on the conduction properties of sodium ion conducting glass-ceramics were studied. Shorter nucleation time and annealing at 900 degrees C for crystal growth resulted in higher conductivities. The whole conductivity of the glass-ceramics was mainly influenced by grains at 300 degrees C and by grain boundaries at 150 degrees C.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2022)
Article
Materials Science, Ceramics
Wentao She, Weimin Xu, Tingyi Yang, Shengshuo Cao, Jing Wang, Jianjun Han
Summary: Transparent Na2O-MgO-Al2O3-SiO2 glass-ceramics containing spinel crystals were prepared. The substitution of MgO for Na2O influenced the crystallization behavior, microstructure, and properties. The glass-ceramics with spinel as the main crystalline phase showed high transparency and potential in applications for protective covers of mobile displays.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Zheng Sun, Yang Li, Mingquan Liu, Haibo Jin, Yongjie Zhao
Summary: In this study, an efficient method to select sintering aids for oxide materials is developed. Na2B4O7, NaF, and CuO are selected as sintering aids for Na3Zr2Si2PO12 ceramic, leading to improved sinterability and densification. The modified ceramic electrolyte shows enhanced room temperature ionic conductivity and stability, resulting in superior cycling stability and rate capability of solid-state sodium batteries.
Article
Materials Science, Ceramics
Weijuan Zhang, Shuzhen Li, Ying Sha, Jinyan Xie, Wenjie Liu, Yi Feng
Summary: Transparent Eu3+-doped oxyapatite glass ceramics were prepared and their crystallization behavior and optical properties were investigated. The results showed that the Eu2O3 dopant affected the crystallization behavior and promoted the oxidation of Eu2+ to Eu3+. In addition, the oxyapatite glass ceramics exhibited excellent thermal stability, making them potential candidates for light conversion applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Erika P. Ramos, Namhoon Kim, Abdeljalil Assoud, Ivan Kochetkov, Liwen Wan, Linda F. Nazar
Summary: All-solid-state batteries are gaining attention as alternatives to liquid electrolyte batteries due to their higher energy densities, anode-less designs, wider temperature range, and improved safety. The development of new solid-state electrolytes, such as inducing Li sublattice disorder, is crucial for their performance improvement.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Toshinori Okura, Koji Kawada, Naoya Yoshida, Hideki Monma, Kimihiro Yamashita
SOLID STATE IONICS
(2012)
Article
Chemistry, Physical
Toshinori Okura, Koji Kawada, Naoya Yoshida, Hideki Monma, Kimihiro Yamashita
SOLID STATE IONICS
(2014)
Article
Materials Science, Ceramics
Koji Kawada, Kimihiro Yamashita, Toshinori Okura
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Materials Science, Multidisciplinary
Koji Kawada, Kimihiro Yamashita, Toshinori Okura
Summary: This study confirmed the significant improvement in Na+ conduction properties of glass-ceramic solid solutions by Zr-inclusion, with Na4ZrSi4O12 showing the highest conductivity. The enhanced conductivity was attributed to the expansion of the conduction path by larger Zr ions replacing FeO6 octahedra.
FUNCTIONAL MATERIALS LETTERS
(2021)
Article
Materials Science, Ceramics
Koji Kawada, Kimihiro Yamashita, Toshinori Okura
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2020)