Article
Materials Science, Ceramics
Jie Yang, Yeming Zhang, Jun Liu, Shun Xie, Wencai Cao, Enze Liao, Chaoran Chen, Dandan Yang, Zhi Chen, Xiaofeng Liu, Jianrong Qiu
Summary: Multi-component silicate glasses doped with Cr3+ were used to prepare glass-ceramics containing mullite-type Cr3+:Al4B2O9 nanocrystals. Excited at 450 nm, the resulting glass-ceramics exhibit broadband NIR luminescence ranging from 650 to 1200 nm. The observed broadband luminescence is attributed to two different crystallographic sites of Cr3+ in Al4B2O9 nanocrystals. The boroaluminosilicate glass-ceramic, with controllable nanoparticle size and uniform dispersion, has potential applications as monolithic near-infrared light sources in solid-state light emitting devices.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Karolina Milewska, Michal Maciejewski, Anna Synak, Marcin Lapinski, Aleksandra Mielewczyk-Gryn, Wojciech Sadowski, Barbara Koscielska
Summary: The glass-ceramics with B2O3-Bi2O3-SrF2 composition were synthesized using conventional melt-quenching technique and subsequent crystallization. The presence of SrF2 nanocrystals was confirmed by FTIR, XRD, and XPS techniques. The study showed an increase in luminescence intensity in samples containing SrF2 nanocrystals, indicating the potential of these materials for LED phosphor applications.
Article
Chemistry, Physical
Ch Nageswara Rao, P. Vasudeva Rao, R. Kameswari, R. Ramesh Raju, G. Chandana, K. Samatha, M. V. V. K. Srinivas Prasad, M. Venkateswarlu, A. Naveen, G. G. Dhar
Summary: The research investigates the structure and photoluminescence of Dy3+ doped transparent CdO-PbF2 phosphate glass/glass ceramics with SrO. After heat treatment, nanocrystals formed in the glass ceramics are spherical in shape and range in size from 10nm to 20nm. The luminescence intensities are significantly influenced by nanocrystallinity and display the same kinetics as efficient luminescent hosts.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Ceramics
Abhishek Wadhwa, Pragati Awasthi, Kai Ren, Xiuxia Xu, Xvsheng Qiao, Xianping Fan, Guodong Qian
Summary: Dual-mode optical thermometry provides precise temperature sensing through the use of a semi-transparent glass-ceramic containing SrF2:Yb3+/Er3+ and ZnAl2O4:Cr3+ phases. The intense green up-conversion and enhanced red down-conversion luminescence of erbium and chromium, respectively, showed high temperature sensitivity. This study demonstrates the potential for accurate temperature measurements using fluorescence intensity and lifetime changes in the dual-mode optical thermometry system.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Optics
A. S. Grabtchikov, I. A. Khodasevich, N. V. Golubev, E. S. Ignat'eva, V. M. Mashinsky, E. O. Kozlova, G. E. Malashkevich, V. N. Sigaev
Summary: Transparent germanosilicate glass-ceramics containing gamma-Ga2O3:Ni2+ nanocrystals were successfully fabricated. Optical amplification at around 1.32 μm was observed in the glass-ceramics under 0.96 μm diode laser pumping in the resonance band of Ni2+ ions, with an estimated gain of approximately 13%.
OPTICS COMMUNICATIONS
(2021)
Article
Chemistry, Physical
K. Elzbieciak-Piecka, M. Sojka, F. Tian, J. Li, E. Zych, L. Marciniak
Summary: The influence of material morphology on the thermometric properties of luminescent thermometers has been investigated. It was found that optical ceramics exhibit higher relative sensitivity at cryogenic temperatures compared to microcrystals and nanocrystals. This study provides insights for designing thermometers with improved sensitivity by changing the morphology of phosphor materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yan Zhao, Xusheng Wang, Rui Hu, Yanxia Li
Summary: A new linear up conversion (UC) optical thermometer with high sensitivity over a wide temperature range has been reported, offering a novel strategy for linear optical temperature measurement. By introducing Cr3+ to optimize the red-green (R/G) ratio, this thermometer demonstrated improved temperature sensing characteristics and maintained a constant sensitivity value of 0.0217 K-1 across a wide range of temperatures.
DALTON TRANSACTIONS
(2021)
Article
Materials Science, Ceramics
Bingcheng Yu, Biao Zheng, Haiping Xia, Jun Wang, Hongwei Song, Baojiu Chen
Summary: Novel borosilicate glasses containing Tb3+/Eu3+ co-doped KY3F10 nanocrystals were prepared via traditional methods and showed enhanced fluorescence intensity with temperature-dependent tunable luminescence from green to red. The energy transfer process between Tb3+ and Eu3+ was determined, and the material exhibited high sensitivity for temperature sensing applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Qianwen Wang, Xinmin Yu, Tong Wang, Wuyunga Bao, Hongbo Zhang, Chunhui Su, Weihua Hu
Summary: Tb4O7-Sm2O3 co-doped transparent glass ceramics were prepared and their heat treatment conditions, optical properties, and energy transfer were studied. The results showed that the glass ceramics have the ability to adjust the luminescence color and are suitable for white light emitting diodes and optical thermometry.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Ran Zhang, Fei Shang, Guohua Chen
Summary: A novel transparent Yb3+/Er3+ co-doped glass ceramics with potential application prospects in optical temperature sensing were prepared via controlled crystallization method.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Liujie Xu, Chaofeng Zhu, Qingshan Xu, Yanfei Zhang, Meimei Zhang, Jianan Liu, Yao Zhou
Summary: We propose Cu2+/Cr3+ doped borate luminescence glasses and glass-ceramics for indoor plant cultivation. The Cu2+ exhibits blue emission under UV excitations, while the Cr3+ displays broadband absorptions in the UV and green light regions, as well as specific emissions. By engineering the composition and excitation wavelength, the emission properties of these materials can be effectively modulated, making them promising for plant growth LEDs.
Article
Materials Science, Multidisciplinary
Zhencai Li, Junhao Li, Chunying Chen, Sai Li, Jie Hu, Johan F. S. Christensen, Dacheng Zhou, Lars R. Jensen, Jiachuan Ni, Xvsheng Qiao, Jincheng Du, Morten M. Smedskjaer, Kenji Shinozaki, Yanfei Zhang, Jianbei Qiu, Jinjun Ren, Yuanzheng Yue
Summary: A novel series of oxyfluoride glasses-ceramics (GCs) is developed by enhancing phase separation through the substitution of LaF3 for La2O3. The thus-derived GCs exhibit greatly improved up-conversion luminescence and temperature-sensing ability.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xihui Shan, Michele Back, Dongxun Chen, Shihai Miao, Ruiqi Shi, Yanjie Liang
Summary: This work presents a comprehensive spectroscopic study of the Cr3+ electronic configuration in LaSr2Ga11O20, which exhibits distinct photoluminescence properties due to the crystal field effect. Through detailed experimental observations and theoretical analysis, the spectroscopic response of Cr3+-doped LaSr2Ga11O20 phosphor to thermal stimulus is investigated. The luminescence intensity ratio of two NIR emission transitions is linear over a certain temperature range, ensuring the reliability of this thermometer.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Haitao Tang, Zhichao Liu, Hao Zhang, Xiaodie Zhu, Qingpeng Peng, Wei Wang, Tao Ji, Peng Zhang, Yakun Le, Aleksey Nikolaevich Yakovlev, Jianbei Qiu, Guoping Dong, Xue Yu, Xuhui Xu
Summary: With the increasing amount of data, optical data storage has become a leading technology in data storage. However, the conventional optical data storage media has reached the limit of its two-dimensional spatial resolution. In this study, transparent LiGa5O8:Cr3+ glass ceramics are prepared by precipitating LiGa5O8:Cr3+ nanoparticles in situ from a transparent medium. These glass ceramics demonstrate excellent deep-trap carriers storage ability and can achieve bit-by-bit optical data in three-dimensional space through photon trapping/detrapping mode. Furthermore, this optical storage mechanism is extended to four dimensions through temperature optical encryption. Notably, the written information remains clearly visible even after being recorded for 200 days. This work enables high-precision storage of information in four dimensions and provides new insights into the design and fabrication of next-generation storage materials.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Coatings & Films
Cassandra Remple, Lauren M. Barmore, Jani Jesenovec, John S. McCloy, Matthew D. McCluskey
Summary: Alloying beta-Ga2O3 with Al2O3 creates ultra-wide bandgap material (AlxGa1-x)(2)O-3, suitable for deep ultraviolet applications. This study investigates the photoluminescence (PL) spectra of Cr3+ in monoclinic single crystal beta-Ga2O3 and beta-Ga2O3 alloyed with 10 mol.% Al2O3 (denoted as beta-(Al0.1Ga0.9)(2)O-3 or AGO). Temperature-dependent PL properties of Cr3+ in AGO and beta-Ga2O3 from 295 to 16 K were studied. Both materials exhibit red-line emission doublet R-1 and R-2 at 696 nm (1.78 eV) and 690 nm (1.80 eV) at room temperature, with a broad emission band at 709 nm (1.75 eV). The linewidths of AGO are larger at all temperatures due to alloy broadening. The R-lines blue-shift with decreasing temperature, and the dominance of R-1 line at low temperatures is attributed to thermal population of levels. Above approximately 50 K, the ratio of R-2 to R-1 peak areas is dominated by nonradiative combination.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Nanoscience & Nanotechnology
Qinqin Xiong, Cun Zheng, Hongzhong Chi, Jun Zhang, Zhenguo Ji
Article
Optics
Mingye Ding, Daqin Chen, Chunhua Lu, Junhua Xi, Zhenguo Ji, Zhongzi Xu
JOURNAL OF LUMINESCENCE
(2017)
Article
Materials Science, Multidisciplinary
Qinan Mao, Zhian Chen, Zhenguo Ji, Junhua Xi
JOURNAL OF MATERIALS SCIENCE
(2017)
Article
Engineering, Electrical & Electronic
Junhua Xi, Mingye Ding, Min Zhang, Haoli Zhang, Daqin Chen, Zhenguo Ji
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Nanoscience & Nanotechnology
Daqin Chen, Jiasong Zhong, MingYe Ding, Zhenguo Ji
SCIENCE OF ADVANCED MATERIALS
(2017)
Article
Chemistry, Physical
Jun Zhang, Lili Zhang, Xinming Ma, Zhenguo Ji
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Physical
Aqing Chen, Shengjian Xia, Xuanyi Pan, Hongwei Lu, Zhenguo Ji
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
J. S. Zhong, H. B. Gao, Y. J. Yuan, L. F. Chen, D. Q. Chen, Z. G. Ji
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Chemistry, Physical
Haiying Qin, Longxia Lin, Wen Chu, Wei Jiang, Yan He, Qiao Shi, Yonghong Deng, Zhenguo Ji, Jiabin Liu, Shanwen Tao
JOURNAL OF POWER SOURCES
(2018)
Article
Materials Science, Multidisciplinary
Qinqin Xiong, Jingjing Lou, Yujia Zhou, Shaojun Shi, Zhenguo Ji
Article
Materials Science, Multidisciplinary
Xiaoxiao Lu, Fang Luo, Qinqin Xiong, Hongzhong Chi, Haiying Qin, Zhenguo Ji, Lingcong Tong, Hongge Pan
MATERIALS RESEARCH BULLETIN
(2018)
Article
Chemistry, Physical
Yueqin Shi, Yaguang Kong, Lihui Song, Jun Zhang, Zhenguo Ji, Ziyi Ge
COLLOID AND POLYMER SCIENCE
(2018)
Article
Chemistry, Inorganic & Nuclear
Wangfeng Bai, Peng Zheng, Fei Wen, Jingji Zhang, Daqin Chen, Jiwei Zhai, Zhenguo Ji
DALTON TRANSACTIONS
(2017)
Article
Chemistry, Physical
Xiaoxiao Lu, Guolong Wu, Qinqin Xiong, Haiying Qin, Zhenguo Ji, Hongge Pan
APPLIED SURFACE SCIENCE
(2017)
Article
Chemistry, Physical
Jun Zhang, Lili Zhang, Yuxuan Shi, Guolong Xu, Erpan Zhang, Hongbo Wang, Zhe Kong, Junhua Xi, Zhenguo Ji
APPLIED SURFACE SCIENCE
(2017)
Article
Materials Science, Ceramics
Dan Zhao, Yi Feng, Zhipeng Pi, Fan Zhang
Summary: Phase equilibria in the ZrO2-GdO1.5-TaO2.5 (ZGTO) system were experimentally investigated, and the differences between ZGTO and the existing ZrO2-YO1.5-TaO2.5 (ZYTO) were discussed. The study is useful for thermodynamic assessment of ZGTO and can guide the design of novel thermal barrier coatings materials.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yutaka Ohya, Wingki Mey Hendra, Chika Takai-Yamashita, Takayuki Ban
Summary: Diffusion couples of rutile and corundum single crystals were prepared and examined to study the solid solution and precipitation of corundum in rutile during cooling. Different precipitation forms of corundum were observed under different cooling conditions.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jiaming Zhan, Yunfa Guo, Hao Wang
Summary: This study systematically investigates the mechanical behaviors of calcium fluoride in humid environments. The effects of water on the deformation and plastic enhancement of CaF2 under indentation are explored through microindentation experiments, atomic simulations, and Raman spectroscopy measurement.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hangfeng Zhang, Henry Giddens, Theo Graves Saunders, Matteo Palma, Isaac Abrahams, Haixue Yan, Yang Hao
Summary: The relationship between low and high frequency tunabilities in tin substituted barium titanate ceramics was investigated. It was found that there are differences in tunabilities at different frequencies due to the different activities of larger ferroelectric domains and polar nanoclusters.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Kaibiao Xi, Jiacheng Liu, Beibei Song, Huarong Cheng, Yihao Li, Xiaole Yu, Mupeng Zheng, Mankang Zhu, Yudong Hou
Summary: Composite modulation in the superparaelectric state of the BTBZ-CT system is proposed as an effective strategy to achieve both NTCC and excellent energy storage performance in dielectric ceramics. The addition of BZ and CT to BT ferroelectrics can move the SPE state to the normal use temperature zone, resulting in enhanced NTCC characteristics and energy storage performance. Furthermore, intentional precipitation of CT at grain boundaries can refine the grain size, increase the bandgap, and strengthen the local electric field distribution, thereby enhancing the breakdown electric field.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hamed Salimkhani, Lovro Fulanovic, Till Froemling
Summary: The demand for robust multilayer ceramic capacitors with high-temperature and high-power capabilities is increasing rapidly. However, cost-effective production is a challenge. This study investigates the use of Na0.5Bi0.5TiO3-based materials as promising lead-free options. By adding sintering aids, the sintering temperature of Na0.5Bi0.5TiO3-BaTiO3-CaZrO3-BiAlO3 solid solutions was successfully reduced to 975 degrees C, suitable for co-sintering with Cu electrodes without adverse effects on capacitor properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Mingxing Li, Ran Mo, Zeshui Xu, Jie Zhou, Conglin Zhang, Xuefeng Cui, Fang Ye, Laifei Cheng, Ralf Riedel
Summary: Polymer infiltration and pyrolysis is an effective method for preparing ceramic matrix composites. The transformation of polymer to ceramic during the process affects the residual stress and interface behavior in the composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yan Kang, Lin Chen, Chang-Jiu Li, Guan-Jun Yang
Summary: A novel abradable seal coating with low hardness and high bonding strength was successfully designed and prepared. This coating has significantly higher abradability and erosion resistance compared to metal-based coatings, and can retain excellent abradability and have a long lifetime during service.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Qingzhong Song, Xiangdong Zha, Ming Gao, Yingche Ma
Summary: This study analyzes the influence of calcia refractory purity on the properties of calcia crucibles. Higher purity calcia results in well-developed grains and improved hydration resistance, leading to better high-temperature strength and thermal shock resistance. In contrast, lower purity calcia crucibles exhibit inferior properties. Therefore, high-purity calcia is considered a potential refractory for manufacturing oxide crucibles.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Sehreish Abrar, Faisal Nazeer, Zhuang Ma, Ling Liu, Abdul Malik, Mustafa Kamal, Abdullah G. Al-Sehemi
Summary: To raise the operating temperature of Si-based ceramic matrix composites (CMCs), researchers have applied thermal/environmental barrier coating (T/EBCs) materials, typically rare earth silicates. However, the high thermal conductivity and the mismatch of thermal expansion have been major challenges in developing new materials that can offer thermal insulation and environmental protection to CMCs. In this study, entropy engineering was used to create a multicomponent equi-atomic single-phase pyro silicate with extremely low thermal conductivity and enhanced water vapor corrosion resistance. The research findings show the potential of high entropy disilicates in achieving ultra-low thermal conductivity and low weight loss in corrosive environments.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Zi-bo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Paolo Colombo, Ralf Riedel, Yu Zhou
Summary: In this study, SiBCN ceramics with a special structure were prepared to improve the oxidation resistance. The effect of the structure on oxidation behavior and kinetics was investigated, revealing that the special structure can effectively inhibit heterogeneous oxidation and enhance the oxide layer composition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Melike Donmez, Metehan Erdogan, Cihangir Duran
Summary: The limited densification of CeO2 ceramics was improved by using an anorthite-based glass, resulting in high dielectric constant and quality factor with minimum dielectric loss. The CeO2-(anorthite-based) glass ceramic showed promising results in terms of low temperature densification and microwave properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
S. Rahmati, R. G. A. Veiga, J. Mostaghimi, T. Coyle, A. Dolatabadi
Summary: This study provides an atomic-scale description of the high-velocity impact of alpha-Al2O3 particles onto an alpha-Al2O3 substrate during Aerosol Deposition (AD). The results suggest that the crystal orientation plays a crucial role in both plasticity and damage of the nanoparticles. Impact velocity has a direct correlation with plasticity and fragmentation, but adhesion efficiency has only a marginal increase. The crucial element lies in the substrate's surface alterations caused by the fragments left on the substrate after impact.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Bo-Wen Chen, Yan-Mei Kan, De-Wei Ni, Chun-Jing Liao, Hong-Da Wang, Yu-Sheng Ding, Shao-Ming Dong
Summary: This study characterized the long-term and repeated ablation properties of modified Cf/HfC-SiC composites with YB4-Al2O3-Si3N4 under an air plasma torch. The structural stability and viscosity of the oxide layer were found to affect the ablation resistance of the composites. By forming nano c-HfO2 grains and high-viscosity Al-Si-Y-O glassy phase, the structural stability of the oxide layer was improved, resulting in enhanced ablation resistance. However, the oxidation of Si3N4 led to the formation of NO, NO2, and excessive SiO2 glassy phase, which resulted in a porous structure and reduced the viscosity of the oxide layer. Therefore, the addition of Si3N4 decreased the ablation resistance of the composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yongxing Wei, Huawei Zhang, Siyuan Dong, Changqing Jin, Chenxing Bai, Junle Dai, Zengzhe Xi, Zhonghua Dai, Zengyun Jian, Li Jin
Summary: In this study, solid solutions of xBi(Ni1/2Hf1/2)O-3-(1 - x)PbTiO3 (xBNH-PT) were synthesized to investigate their phase boundary behaviors and physical properties. The presence of a tetragonal-pseudocubic phase boundary and a spontaneous ferroelectric-relaxor transition at specific compositions were confirmed. The introduction of a tetragonal-pseudocubic phase boundary improved the piezoelectric properties and suppressed the spontaneous ferroelectric-relaxor transition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)