JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Zixuan Wang,Haitao Guo,Xusheng Xiao,Yantao Xu,Xiaoxia Cui,Min Lu,Bo Peng,Anping Yang,Zhiyong Yang,Shaoxuan Gu
0.2%–3% weight of Dy 3+ ions doped 64GeS 2 ·16Ga 2 S 3 ·20CdI 2 glasses were synthesized, and their spectroscopic properties were investigated. It was shown that the host glass could dissolve as much as 3% Dy 3+ ions without deteriorating the glass transparency. The mid-infrared (MIR) emissions of the glasses did not present remarkable concentration quenching when the Dy 3+ ions concentration was less than 0.6%. It was also shown that the MIR emission properties could be significantly improved by reducing S H/O H impurities in the glasses. The spectral analyses indicated that the 2.9 and 4.3 μm emissions of Dy 3+ ions in the glass showed relatively large stimulated emission cross sections. The glass doped with as high as 0.4% Dy 3+ ions was successfully drawn into fibers, indicating good potential of the doped glass for MIR lasers.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
NATURE MATERIALS
·
2023
·Vol. 22
·期 10
·1189-1195
·
IF 41.2
Tang Hu,Cheng Yong,Yuan Xiaohong,Zhang Kai,Kurnosov Alexander,Chen Zhen,Xiao Wenge,Jeppesen Henrik S.,Etter Martin,Liang Tao,Zeng Zhidan,Wang Fei,Fei Hongzhan,Wang Lin,Han Songbai,Wang Ming-Sheng,Chen Guang,Sheng Howard,Katsura Tomoo
Glasses, unlike crystals, are intrinsically brittle due to the absence of microstructure-controlled toughening, creating fundamental constraints for their technological applications. Consequently, strategies for toughening glasses without compromising their other advantageous properties have been long sought after but elusive. Here we report exceptional toughening in oxide glasses via paracrystallization, using aluminosilicate glass as an example. By combining experiments and computational modelling, we demonstrate the uniform formation of crystal-like medium-range order clusters pervading the glass structure as a result of paracrystallization under high-pressure and high-temperature conditions. The paracrystalline oxide glasses display superior toughness, reaching up to 1.99 ± 0.06 MPa m 1/2 , surpassing any other reported bulk oxide glasses, to the best of our knowledge. We attribute this exceptional toughening to the excitation of multiple shear bands caused by a stress-induced inverse transformation from the paracrystalline to amorphous states, revealing plastic deformation characteristics. This discovery presents a potent strategy for designing highly damage-tolerant glass materials and emphasizes the substantial influence of atomic-level structural variation on the properties of oxide glasses.
研究领域:
材料科学
·
玻璃科学
·
凝聚态物理
✓ 已验证
DOI
PubMed
高影响因子
3D Printing and Additive Manufacturing
·
2025
·
IF 2.1
Feilong Jiang,Zhuo Zhao,Chuangjia Zhao,Liangjie Xie,Meiqi Wang,Yulu Cheng,Xubao Wang
Facing the serious problem of rapidly increasing myopia rate, the demand for eyeglasses is increasing, while the traditional manufacturing methods for eyeglass frames and lenses are long, slow, and expensive. In this article, we propose to fabricate myopia glasses by 3D printing method, and the frames and lenses are produced by digital light processing and stereo lithography appearance methods, respectively. Through the tensile and elongation at break test, it shows that the mechanical properties of the 3D printed frames are good, and the mechanical collision simulation results show that it does not affect the normal use under the impact of large speeds, which shows a high degree of uniformity with the mechanical experiments; through the pressure test at different positions after wearing, it verifies the wearing comfort of the myopic frames; after polishing the printed myopic lenses, through the optical experiments, it shows that the transmission rate of the myopic lens is comparable to that of the traditional glasses. The transmission rate has been more similar to the traditional glasses; measurement of the refraction of the printed myopic lenses compared with the theory, the error is within the acceptable range. Through the wearing test, it shows that the 3D-printed myopic lenses have a certain corrective effect on visual acuity.
研究领域:
生物医学工程
·
材料科学
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DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2020
·Vol. 104
·期 4
·1689-1697
·
IF 3.502
Junzhou Tang,Guanxin Du,Shaofei Wen,Shichao Lv,Bijiao Lan,Zhenguo Shi,Xuequan Fang,Shifeng Zhou
Scintillating glasses are useful for radiation detection because of the attractive advantages such as low cost, ability to be machined into complex shapes, and easy fabrication into fibers or fiber arrays. However, the scintillating efficiency is still required to be further improved. Here, we report that the fluorine hybridization may notably promote scintillating performance. The thorough studies on a wide range of glass-forming region show that the hybridized oxyfluoride systems exhibit much bright scintillating emission which is ~4 times as high as the commercial oxide candidate. The constructed material candidates also show high-radiation hardness and no obvious radiation-induced degradation is observed. Furthermore, the scintillating emission intensity and dose rate follows the excellent linear relation, indicating the potential application for radiation monitoring.
研究领域:
材料科学
·
光子学
·
核辐射探测
✓ 已验证
DOI
高影响因子
ACTA MATERIALIA
·
2023
·
IF 9.4
Xuan Ge,Pingsheng Lai,Caijuan Shi,Xiaowei Xu,Jian Wang,Tao Du,Morten M. Smedskjær,Dongliang Yang,Fan Yang,Wenquan Lu,Jingyu Qin,Jianguo Li,Qiaodan Hu
Annealed titanate glasses are important candidate materials for high-performance electronic components, but their structural response to temperature-induced properties upon thermal annealing remains elusive. Here, using high-energy synchrotron X-ray scattering, high-temperature Raman spectroscopy , and empirical potential structure refinement simulation, we track the structural evolution in situ of a barium dititanate (BaTi 2 O 5 ) glass upon annealing around and below the glass transition temperature . We find that the network structure is intrinsically floppy, as the network units ([TiO m ] polyhedra) themselves and their topological packing can be easily modulated by annealing temperature. The floppy nature of the glassy titanate network challenges the currently well-cognized Rigid-Unit Mode model explaining temperature-driven structural reorganization of prototypical network glasses (e.g., silicate/borate glasses). As temperature increases, the floppy network of BaTi 2 O 5 glass undergoes a non-monotonic, two-stage network rearrangement. After cooling back to room temperature, the distortion of network units is found recoverable whereas the change of network connectivity in the intermedium-range order is irreversible. Simulation ensembles further show the irreversible connectivity change can be ascribed to the local development of crystal-like cationic motifs, which in turn induce excess enthalpy relaxation . Our findings provide an atomic-scale perspective on temperature-dependent structural and enthalpy relaxation of a model titanate glass upon annealing, which are crucial for understanding thermal-related changes in the properties of titanate glasses.
研究领域:
材料科学
·
凝聚态物理
·
无机化学
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产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 8
·e71145
·
IF 4.2
Ao Shen,Yiguang Jiang,Jiacheng Li,Huidan Zeng,Long Zhang
Gallate glasses hold significant promise for mid-infrared optical applications because of their low phonon energies and broad infrared transmission windows. However, the Ga 2 O 3 –CaO binary system suffers from poor glass-forming ability and high melting temperatures, making it difficult to obtain stable bulk glasses. In this study, YF 3 -regulated 32Ga 2 O 3 -(68- x )CaO- x YF 3 ( x = 0–10 mol%) gallate glasses were synthesized and investigated. The amount of bridging oxygen in the glass network decreases continuously with increase in the YF 3 content. Meanwhile, the glass stability first increases and then decreases. The glass achieves the best stability ( ΔT = 138°C, S = 5.71, H r = 0.474) when the YF 3 content is 8 mol% (GY8). The non-isothermal crystallization kinetics of the GY8 glass were studied based on the classical Johnson–Mehl–Avrami theory. The crystallization activation energies calculated by the Kissinger, Ozawa, and Augis–Bennett equations are in good agreement with each other, and the Avrami exponent calculated by the Matusita–Sakka and Augis–Bennett equations is approximately 3, indicating that the crystallization mechanism of the GY8 glass is either volume nucleation with two-dimensional growth, or three-dimensional growth from a fixed number of pre-existing nuclei. This system guides the design of glass composition and process optimization, thereby providing a theoretical foundation for the preparation of large-sized, highly stable glasses.
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产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 107
·期 6
·3789-3799
·
IF 3.5
Shuangli Dong,Weichao Wang,Yanqi Jia,Qinyuan Zhang
Quantitative composition-structure-property (C–S–P) relationship analysis is a promising approach to correlate structural features with properties of glasses that have complex structures and lack long-range order. In this study, the structure and spectroscopic properties of two typical P 2 O 5 -MO-K 2 O-Al 2 O 3 (M = Mg, Ba) quaternary phosphate laser glasses doped with Nd 3+ ions are calculated and predicted. By using the nearest-neighboring congruently melting compounds in the phase diagram as “component and structural motifs”, correlations with properties and insights on glass behaviors can be obtained. Two key physical properties and five spectroscopic properties are predicted and verified with an error of less than 5% and 10%, respectively. Furthermore, two C–S–P databases with more than 1000 glass compositions are established for designing and optimizing new laser glasses. The results show that this approach not only gets rid of the traditional qualitative research method which relies on empirical formulas, but also promotes the quantitative calculation and predictable design of glass research.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Advanced Science
·
2023
·Vol. 10
·期 35
·2305775
·
IF 15.1
Beining Li,Zhenjiang Li,Ido Cooperstein,Wenze Shan,Shuaipeng Wang,Benxue Jiang,Long Zhang,Shlomo Magdassi,Jin He
Fabrication of glass with complex geocd the low resolution of particle-based or fused glass technologies. Herein, a high-resolution 3D printing of transparent nanoporous glass is presented, by the combination of transparent photo-curable sol–gel printing compositions and digital light processing (DLP) technology. Multi-component glass, including binary (Al 2 O 3 -SiO 2 ), ternary (ZnO-Al 2 O 3 -SiO 2 , TiO 2 -Al 2 O 3 -SiO 2 ), and quaternary oxide (CaO-P 2 O 5 -Al 2 O 3 -SiO 2 ) nanoporous glass objects with complex shapes, high spatial resolutions, and multi-oxide chemical compositions are fabricated, by DLP printing and subsequent sintering process. The uniform nanopores of Al 2 O 3 -SiO 2 -based nanoporous glasses with the diameter (≈6.04 nm), which is much smaller than the visible light wavelength, result in high transmittance (>95%) at the visible range. The high surface area of printed glass objectives allows post-functionalization via the adsorption of functional guest molecules. The photoluminescence and hydrophobic modification of 3D printed glass objectives are successfully demonstrated. This work extends the scope of 3D printing to transparent nanoporous glasses with complex geometry and facile functionalization, making them available for a wide range of applications.
研究领域:
材料科学
·
增材制造
·
光学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Daiwen Xiao,Ka-Leung Wong,Peter A. Tanner
The behavior of nanoparticles in media of different refractive index has received considerable theoretical and experimental investigation. However, the behavior of larger particles, of micron size, has not been established. We have chosen Eu 3+ as a marker of environmental changes. Dilution of this ion into LaPO 4 gives a simple, fingerprint emission spectrum which has been studied via its luminescent lifetime, the R 2 (( 5 D 0 → 7 F 2 )/( 5 D 0 → 7 F 1 ) intensity ratio) and the electric dipole:magnetic dipole intensity ratio, (ED:MD), of spectral features. Measurements of micron-sized particles of LaPO 4 :Eu 3+ synthesized by several methods have been made for dispersions in alcohols, in compressed glass discs, in melted glass discs, in phosphor in glass (PiG) and in melted PiG. The experimental results are discussed and rationalized. The Eu 3+ 5 D 0 emission lifetime is reasonably constant in the bulk powders, powders dispersed in alcohols or compressed discs but is smaller in PiGs and melted glass discs. In the PiGs the structural integrity of LaPO 4 :Eu 3+ is maintained until they are melted at higher temperature. The change in lifetime, when varying the composition of the PiG, follows the Virtual Cavity Model. For dispersal of the particles in solvents there is a cut-off particle size below 1 μm where the electronic spectra of the moiety become insensitive to the environment and the properties are determined by refractive index. The remarkable change in R 2 ratio in the different systems considered – by a factor of nearly 600 % - and the corresponding decrease in 5 D 0 lifetime – by a factor of nearly 60 % - illustrates the versatility of the lanthanide ion.
研究领域:
材料科学
·
发光材料
·
无机化学
·
光子学
·
固态物理
✓ 已验证
产品关联
DOI
高影响因子
ACS Photonics
·
2026
·
IF 6
Ou Lihao,Li Siqi,Wang Minge,Yu Hong,Zhang Ning,Wang Yichen,Li Fei,Zhang Youzhi,Kuai Yan,Liu Xue,Jiang Yuxuan,Zhen Shenglai,Hu Zhijia,Gao Yesheng,Yu Benli
Chiral fiber lasers, owing to their unique circularly
polarized
laser output, are crucial in frontier fields such as spin photonics,
quantum information processing, and high-sensitivity chiral sensing.
Current fabrication methods, relying on mechanical twisting or complex
multicore structures, are limited by poor torsional strain tolerance,
structural instability, and difficulties in achieving precise intercore
coupling. To address these bottlenecks, we propose and demonstrate
an innovative fabrication strategy using chiral supramolecular glasses
(SGs) as the optical fiber core material. This approach leverages
the intrinsic chirality of SGs to impart macroscopic chirality to
the fiber. By integrating high-performance gain dyes, we successfully
construct and characterize a chiral fiber laser. The readily designable
chiral motifs of SGs and their near-room-temperature glass transition
temperature simplify fabrication and enhance structural controllability.
The resulting chiral fiber laser stably emits narrow-line width circularly
polarized laser output with an asymmetry value ( g lum ) of approximately 0.31. This work establishes chiral
SG-based systems as a high-performance, highly designable class of
chiral laser gain media, paving a new technological path for next-generation
functionalized fiber lasers.
✓ 已验证
产品关联
DOI
高影响因子
SCRIPTA MATERIALIA
·
2024
·
IF 5.3
Zixing Zhen,Xuan Ge,Zhencai Li,Morten M. Smedskjaer,Wenquan Lu,Fan Yang,Jianguo Li,Qiaodan Hu
Primary ( α ) structural relaxation is known to influence the nucleation behavior in glasses and it has recently been proposed to account for the so-called classical nucleation theory “breakdown” in oxide glasses around the glass transition temperature . However, it is unclear whether secondary ( β -) relaxation, predominant at lower temperatures, also plays a role in promoting crystallization. Here, we study the correlation between crystallization kinetics and β -relaxation of three types of oxide glasses with distinct chemical bonds by subjecting the glasses to low-temperature annealing. We find that the activation energy of crystallization ( E a ) exhibits an exponential decay with increasing annealing duration for all studied glasses. Such a decrease in E a is found to be associated with the structural rearrangements in the glasses, especially showing a negative correlation with the enhanced atomistic interplays around modifying cations. Our findings thus point to a universal linkage between β -relaxation and nucleation kinetics in oxide network glasses.
研究领域:
材料科学
·
凝聚态物理
·
化学
✓ 已验证
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2025
·
IF 3.2
Xingquan Zhang,Yifan Xiong,Sijia Yu,Jingyu Yuan,Kui Zheng,Zhu Cui,Yongchang Zhu,Jichuan Huo
The effect of MoO 3 incorporation on structure and thermal properties (e.g., thermal diffusivity , heat capacity, and thermal conductivity) of a borosilicate glass with a composition of 59.76 SiO 2 –14.46B 2 O 3 –2.90 Al 2 O 3 –11.46 Na 2 O-11.42 CaO (mol%) was investigated systematically. MoO 3 incorporation induced phase separation and crystallization of CaMoO 4 and Na 2 MoO 4 in borosilicate glass. CaMoO 4 phases with grain size of about 200 nm in diameter were homogenously dispersed in the glass matrix, while, Na 2 MoO 4 as a second phase formed on the surface. In addition, MoO 3 incorporation resulted in re-polymerization of the glass network. These structural changes have obvious influence on thermal properties. MoO 3 additions up to 6 wt% decreased thermal diffusivity by 7.5 %, heat capacity by 27.8 % and thermal conductivity by 30.2 %. Correlations between the structure, microstructure and thermal properties were proposed. It is speculated that the decrease of thermal conductivity mainly results from the decrease of mean free path of phonons caused by interface scattering. The understanding of the linkages between structure, microstructure, and thermal properties should provide insights for the design of borosilicate glass compositions for vitrification of MoO 3 -rich high-level waste.
研究领域:
材料科学
·
玻璃化学
·
热性能
·
高放废物玻璃固化
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）