Journal of Non-crystalline Solids最新文献_第9页

Tuning macroporous structure and thermal properties of polymethylsilsesquioxane aerogels via tailored heat treatment

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-01-09 DOI: 10.1016/j.jnoncrysol.2025.123388

Zhi Li , Fang Zhou , Kai Shen , Min Hu , Miao Liu , Shengjie Yao , Zikang Chen , Qiong Liu , Chuangang Fan , Xiaoxu Wu

{"title":"Tuning macroporous structure and thermal properties of polymethylsilsesquioxane aerogels via tailored heat treatment","authors":"Zhi Li , Fang Zhou , Kai Shen , Min Hu , Miao Liu , Shengjie Yao , Zikang Chen , Qiong Liu , Chuangang Fan , Xiaoxu Wu","doi":"10.1016/j.jnoncrysol.2025.123388","DOIUrl":"10.1016/j.jnoncrysol.2025.123388","url":null,"abstract":"<div><div>The rapid preparation of polymethylsilsesquioxane (PMSQ) aerogels via ambient pressure drying resolves the issues of organic solvent overconsumption and lengthy processing commonly encountered in the production of hydrophobic SiO<sub>2</sub> aerogels. However, macropore structures in MSQ aerogels diminish thermal insulation properties, limiting their broader application. This study employed a simple, clean, and controllable heat treatment technique to tailor the microstructure and surface chemical of MSQ aerogels, yielding SiO<sub>2</sub> aerogels with superior hydrophobicity, outstanding thermal insulation performance, and enhanced thermal stability. Specifically, through heat treatment at 600 °C in an argon atmosphere, MSQ aerogels demonstrate minimal morphological changes (2.5 % volume shrinkage), maintaining low density (0.066 g/cm³), high porosity, and excellent hydrophobicity. Notably, Reduced macropores optimize thermal conductivity (27.3 mW/m/K), while the partial decomposition of organic groups enhances thermal stability and lowers gross calorific value. This study offers a promising strategy for improving the thermal properties of MSQ aerogels and broadening their applications.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"651 ","pages":"Article 123388"},"PeriodicalIF":3.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and optimization of a large mode field, low crosstalk homogeneous six-core photonic crystal fiber

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-01-08 DOI: 10.1016/j.jnoncrysol.2024.123383

Dexiao Chen , Fang Tan , Zhitao Zhang , Yanke Zhang , Songsong Ge , Xiang Zhang , Ping Huang , Shunfa Cui , Zhuang Leng

{"title":"Design and optimization of a large mode field, low crosstalk homogeneous six-core photonic crystal fiber","authors":"Dexiao Chen , Fang Tan , Zhitao Zhang , Yanke Zhang , Songsong Ge , Xiang Zhang , Ping Huang , Shunfa Cui , Zhuang Leng","doi":"10.1016/j.jnoncrysol.2024.123383","DOIUrl":"10.1016/j.jnoncrysol.2024.123383","url":null,"abstract":"<div><div>Multi-core fiber is one of the important application technologies for space division multiplexing. This paper proposes and designs a large mode field, low crosstalk homogeneous six-core photonic crystal fiber. The method of controlling a single variable is employed to ascertain the crosstalk of the fiber and the variation curve of the effective mode field area, while optimizing the parameters by varying the structural parameters using the full vector finite element method. The performance of the fiber with optimized parameters in terms of bending, dispersion, confinement loss, and electric field strength is calculated and analyzed. At a wavelength of 1550 nm, the crosstalk and effective mode field area following the optimization of structural parameters are -51.6 dB and 341 μm², respectively; The minimum level of crosstalk is -63.9 dB when the bending radius is 1.00 cm; The dispersion values are as low as -6062 ps/nm/km; The limiting loss is a maximum of 0.00532 dB/km; The electric field strength of each core in the radial and axial directions of the fiber is considerable and uniformly distributed. Compared with similar multi-core fibers, the large mode field, low-loss homogeneous six-core photonic crystal fiber designed in this paper has better performance in terms of bending, dispersion, limiting loss, and electric field strength. The design of this structure provides a useful reference scheme for optical communication networks as well as fiber optic device development.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"651 ","pages":"Article 123383"},"PeriodicalIF":3.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of soft magnetic properties for Fe-based amorphous/nanocrystalline alloy by longitudinal magnetic field annealing

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-01-06 DOI: 10.1016/j.jnoncrysol.2024.123382

Mufeng Jiang , Jingjing Wang , Mingjuan Cai , Jun Li , Wanying Dong , Zhijun Guo , Baolong Shen

{"title":"Improvement of soft magnetic properties for Fe-based amorphous/nanocrystalline alloy by longitudinal magnetic field annealing","authors":"Mufeng Jiang , Jingjing Wang , Mingjuan Cai , Jun Li , Wanying Dong , Zhijun Guo , Baolong Shen","doi":"10.1016/j.jnoncrysol.2024.123382","DOIUrl":"10.1016/j.jnoncrysol.2024.123382","url":null,"abstract":"<div><div>This study investigated the enhancement of soft magnetic properties in Fe<sub>83.2-x</sub>Co<sub>x</sub>Si<sub>2.5</sub>B<sub>9.5</sub>P<sub>4</sub>Cu<sub>0.8</sub> (<em>x</em> = 0, 4, 8, 12 and 16 at %) amorphous/nanocrystalline alloys through longitudinal magnetic field annealing (FA). The FA-treated alloys demonstrate superior magnetic performance, achieving a superior saturation flux density (<em>B</em><sub>s</sub>) of 1.85 T, ultra-low coercivity (<em>H</em><sub>c</sub>) of 1.8 A/m, high effective permeability (<em>μ</em><sub>e</sub>) of 26,505 at 1 kHz, and low core loss (0.13 W/kg) at 1.0 T/50 Hz. Microstructural analysis reveals that the FA and Co substitution promotes nanocrystalline nucleation, forming high-density nanocrystals while suppressing grain growth through competitive dynamics and inhibiting element diffusion within the amorphous matrix. Domain observation further confirms that FA facilitates the transition from disordered, non-uniform magnetic to uniform, broad, plate-like domains. These findings elucidate the critical influence of longitudinal magnetic field annealing on microstructure evolution and magnetic domain alignment, which synergistically enhance soft magnetic properties.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"650 ","pages":"Article 123382"},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-dimensional nanosheet glass with fluid-induced switchable haze obtained by hydrothermal method

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-01-03 DOI: 10.1016/j.jnoncrysol.2024.123384

Heng Zhu , Wenguang Tu , Xi Zhu , Yong Zhou , Zhigang Zou

引用次数: 0

Insight into efficient removal of tetracycline from water by Fe–Si–B amorphous alloys

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-01-02 DOI: 10.1016/j.jnoncrysol.2024.123377

Jing Wei , Zhigang Zheng , Zhaoguo Qiu , Dechang Zeng

{"title":"Insight into efficient removal of tetracycline from water by Fe–Si–B amorphous alloys","authors":"Jing Wei , Zhigang Zheng , Zhaoguo Qiu , Dechang Zeng","doi":"10.1016/j.jnoncrysol.2024.123377","DOIUrl":"10.1016/j.jnoncrysol.2024.123377","url":null,"abstract":"<div><div>The removal efficiency of tetracycline (TC) by Fe-based amorphous (Fe<sup>am</sup>) alloy was investigated through batch experiments, examining the effects of TC concentration, initial pH, and environmental temperature on its removal performance. The experimental results indicate that Fe<sup>am</sup>, owing to its amorphous structure and excellent catalytic properties, has a TC removal rate that is 2.75 times greater than that of zero-valent iron (ZVI) powder. Within the range of initial pH values from 4 to 7, the degradation efficiency for TC remains high, with nearly all removal rates reaching 99 % after 30 min of treatment. The results suggest that the removal process is primarily attributed to adsorption (by Fe<sup>0</sup> and its corrosion products) and reduction. The pH significantly influences the formation of iron corrosion products and the variations in TC species. The reactive adsorbed Fe<sup>2+</sup> plays a crucial role in the removal process. In addition to demonstrating effective removal capabilities for TC, Fe<sup>am</sup> also exhibits excellent removal performance for oxytetracycline (OTC) hydrochloride and chlorotetracycline (CTC) hydrochloride, underscoring its broad applicability among tetracycline antibiotics. In summary, this study provides a novel approach for the removal of tetracycline antibiotics from water.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"650 ","pages":"Article 123377"},"PeriodicalIF":3.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical properties of zeolitic imidazolate framework crystal-glass composites: A molecular dynamics study

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-12-31 DOI: 10.1016/j.jnoncrysol.2024.123379

Xiaoyi Xu , Tao Du , Morten M. Smedskjaer

{"title":"Mechanical properties of zeolitic imidazolate framework crystal-glass composites: A molecular dynamics study","authors":"Xiaoyi Xu , Tao Du , Morten M. Smedskjaer","doi":"10.1016/j.jnoncrysol.2024.123379","DOIUrl":"10.1016/j.jnoncrysol.2024.123379","url":null,"abstract":"<div><div>Zeolitic imidazolate framework (ZIF) glasses have potential applications as battery materials or gas separation membranes, but this requires an improvement in their fracture resistance. In this study, we investigate the mechanical properties and fracture mechanism of ZIF crystal-glass composites using molecular dynamics simulations based on a recently developed machine learning force field. The composites are made from ZIF-4 or ZIF-zni crystals embedded in a melt-quenched ZIF-4 glass matrix. ZIF-4 and ZIF-zni share the same chemical composition (ZnIm<sub>2</sub>, where Im is imidazole), but ZIF-zni has a denser crystal structure. By examining ZIF-4 glass based composites with different sizes and shapes of ZIF-4 and ZIF-zni crystals, we study the relationship between atomic-scale structure and mechanical properties. Our findings reveal that the structural differences between ZIF-4 and ZIF-zni crystals lead to distinct mechanical behaviors. The composites based on the stiffer ZIF-zni crystals exhibit greater resistance to irreversible atomic rearrangements compared to those based on ZIF-4 crystals, allowing for crack deflection around the crystals, thereby slightly increasing fracture toughness. Furthermore, the morphology of the crystals plays a crucial role in determining the crack path, influencing both crack deflection and the structural arrangement ability in the elastic state. Overall, the study identifies the key atomic-scale factors, such as the zinc bond switching propensity, for optimizing the mechanical properties of ZIF crystal-glass composites.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"650 ","pages":"Article 123379"},"PeriodicalIF":3.2,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Y2O3 on properties and structure of Nd-doped P2O5-Al2O3-ZnO glasses

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-12-31 DOI: 10.1016/j.jnoncrysol.2024.123381

Xinyu Liu , Xin Wang , Yan Sun , Hanmeng Zhang , Yichong Chen , He Feng , Lili Hu , Shubin Chen

引用次数: 0

Terahertz-time domain spectroscopy and optical characterization of germanate glass systems for photonic applications

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-12-30 DOI: 10.1016/j.jnoncrysol.2024.123369

Haramanpreet Kaur , Ruturaj Puranik , Vibhavari Parkar , Snehal Haldankar , Fathimath Faseela , Shriganesh Prabhu , Sandeep Kaur , Neetu Verma , Gopi Sharma

{"title":"Terahertz-time domain spectroscopy and optical characterization of germanate glass systems for photonic applications","authors":"Haramanpreet Kaur , Ruturaj Puranik , Vibhavari Parkar , Snehal Haldankar , Fathimath Faseela , Shriganesh Prabhu , Sandeep Kaur , Neetu Verma , Gopi Sharma","doi":"10.1016/j.jnoncrysol.2024.123369","DOIUrl":"10.1016/j.jnoncrysol.2024.123369","url":null,"abstract":"<div><div>The present work deals with the effect of the sodium content on the thermal, structural, ellipsometric, and THz properties of germanate glasses. The sodium germanate glasses of composition xNa<sub>2</sub>O.(100-x)GeO<sub>2</sub> with 10 ≤x≤ 30 (mol%) are prepared by conventional melt quenching technique. The optical properties of sodium germanate (GN) glass system, including refractive index, dielectric constant, absorption coefficient and transmittance are measured at terahertz (THz) frequencies. High refractive index, n(THz) and high dielectric constant, ԑ(THz) of germanate glasses have been identified in the sub-terahertz region (0.2–1 THz). The wavelength-dependent refractive index, n(λ) has been analyzed with the ellipsometric analysis. The refractive index in the 1.52–1.65 range is obtained at the 550 nm wavelength for the present system. Optical properties are explained based on the structure investigated by Raman spectroscopy. Thermal stability factors are also examined with the differential thermal analysis (DTA) to relate the thermal and THz parameters for THz applications.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"650 ","pages":"Article 123369"},"PeriodicalIF":3.2,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring the GFA, -∆SM and RC of Fe86-2xZr8+xB5+xCu1 (x = 0,1& 2) metallic glass ribbons for magnetocaloric applications

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-12-30 DOI: 10.1016/j.jnoncrysol.2024.123376

Anjana Vinod , Arvindha Babu Diraviam , Manivel Raja Muthuvel , Madhuri Wuppulluri

{"title":"Tailoring the GFA, -∆SM and RC of Fe86-2xZr8+xB5+xCu1 (x = 0,1& 2) metallic glass ribbons for magnetocaloric applications","authors":"Anjana Vinod , Arvindha Babu Diraviam , Manivel Raja Muthuvel , Madhuri Wuppulluri","doi":"10.1016/j.jnoncrysol.2024.123376","DOIUrl":"10.1016/j.jnoncrysol.2024.123376","url":null,"abstract":"<div><div>The present investigation explores the quaternary metallic glass (MG) Fe<sub>86–2x</sub>Zr<sub>8+x</sub>B<sub>5+x</sub>Cu<sub>1</sub> (<em>x</em> = 0,1& 2) ribbons that examined for the magnetocaloric effect (MCE) and glass forming ability (GFA) characteristics of the ribbons. The MGs are spun into a ribbon with typical amorphous characteristics by rapid solidification technique and XRD, DSC and VSM have examined their structure and magnetic properties. The observed increase in the α parameter with the increase in the boron and zirconium concentration suggests an increase in the amorphous character of the material. The magnetization-temperature curve demonstrates that the Curie transition temperature consistently increases with the presence of boron and zirconium, and shows a significant shift in entropy, ranging from 1.68 to 2.01 J.kg<sup>-1</sup>K<sup>-1</sup> at a magnetic field of 2.5 T. Additionally, it exhibits a noteworthy Relative Cooling Power of 38.76–53.74 J.kg<sup>-1</sup>. The potential of this material as an exceptional low-temperature refrigeration material around room temperature is demonstrated by these outcomes.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"650 ","pages":"Article 123376"},"PeriodicalIF":3.2,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailored plasticity of Zr-based bulk metallic glass by controlling the static holding time of melt before quenching

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-12-27 DOI: 10.1016/j.jnoncrysol.2024.123380

Tuo Wang, Qiqi Hou, Yating Zhou, Guanting Liu

{"title":"Tailored plasticity of Zr-based bulk metallic glass by controlling the static holding time of melt before quenching","authors":"Tuo Wang, Qiqi Hou, Yating Zhou, Guanting Liu","doi":"10.1016/j.jnoncrysol.2024.123380","DOIUrl":"10.1016/j.jnoncrysol.2024.123380","url":null,"abstract":"<div><div>In this study, the plasticity of a Zr<sub>60</sub>Ni<sub>25</sub>Al<sub>15</sub> bulk metallic glass (BMG) was controlled by the static holding time of melt before quenching. It had been found that when the static holding time was 4 min, the Zr<sub>60</sub>Ni<sub>25</sub>Al<sub>15</sub> BMG had the plasticity of 6.4%, however, when the static holding time was above or less than 4 min, the plasticity would decrease. The main reason for the different plasticity was the oxygen content of Zr<sub>60</sub>Ni<sub>25</sub>Al<sub>15</sub> BMGs at different static holding times. The appropriate oxygen content led to the blue shift of the valence band spectrum of X-ray photoelectron spectroscopy of Zr<sub>60</sub>Ni<sub>25</sub>Al<sub>15</sub> BMG. The nanoindentation test indicated that there were more soft regions of the Zr<sub>60</sub>Ni<sub>25</sub>Al<sub>15</sub> BMG with the static holding time of 4 min compared with the others. The mechanism of the different plasticity of the Zr<sub>60</sub>Ni<sub>25</sub>Al<sub>15</sub> BMGs under different static holding times was discussed.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"650 ","pages":"Article 123380"},"PeriodicalIF":3.2,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0