Article
Physics, Multidisciplinary
N. J. Hartley, J. Grenzer, L. Huang, Y. Inubushi, N. Kamimura, K. Katagiri, R. Kodama, A. Kon, W. Lu, M. Makita, T. Matsuoka, S. Nakajima, N. Ozaki, T. Pikuz, A. Rode, D. Sagae, A. K. Schuster, K. Tono, K. Voigt, J. Vorberger, T. Yabuuchi, E. E. McBride, D. Kraus
Summary: The experiment used a high-intensity x-ray pump to heat silicon samples, observing changes in ionic structure within 100 femtoseconds, resulting in a disordered, liquidlike state. The findings indicate that both phase change and disordered states are dominated by Coulomb forces rather than pure inertial behavior.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Heemin Lee, Je Young Ahn, Sae Hwan Chun, Do Hyung Cho, Daeho Sung, Chulho Jung, Jaeyong Shin, Junha Hwang, Sung Soo Ha, Hoyoung Jang, Byeong-Gwan Cho, Sunam Kim, Jaeku Park, Daewoong Nam, Intae Eom, Ji Hoon Shim, Do Young Noh, Yungok Ihm, Changyong Song
Summary: Photoinduced nonequilibrium phase transitions have sparked interest in the dynamic interactions between electrons and crystalline ions. Through experiments and simulations, this study reveals the impact of photoexcitation and bonding orbitals on lattice stability.
Article
Thermodynamics
Kwang-Sei Lee, In-Hwan Oh, Jae-Hyeon Ko
Summary: The powder X-ray diffraction (PXRD) and differential scanning calorimetry (DSC) were used to characterize the structure and detect phase transformations of polycrystalline (+)-decursinol. The crystal system of decursinol was determined to be orthorhombic with a space group P212121 using PXRD. DSC analysis showed two polymorphic phase transitions at approximately 64°C and 68°C, and a melting peak at an extrapolated onset temperature of approximately 177°C.
THERMOCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Nicolas Bouliez, Jerome Andrieux, Rodica Chiriac, Francois Toche, Jean-Claude Crivello, Bruno Gardiola, Sophie Cazottes, Florence Robaut, Rafael Cury, Olivier Dezellus
Summary: Tungsten heavy alloys (Co-Ni-W) of different compositions were prepared and heat treated, revealing a new intermetallic phase. The evolution of phase equilibria with temperature helps to achieve agreement with high temperature data.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Polymer Science
Lianlian Fu, Ying Lu, Zhiyong Jiang, Ran Chen, Yongfeng Men
Summary: The study investigates the structural evolution and temperature dependence of crystal thickness in high-density polyethylene (HDPE) under different crystallization methods. It was found that stretched HDPE processed much thinner crystalline lamellae, while samples crystallized isothermally exhibited better stability.
Article
Physics, Multidisciplinary
Peco Myint, Karl F. Ludwig, Lutz Wiegart, Yugang Zhang, Andrei Fluerasu, Xiaozhi Zhang, Randall L. Headrick
Summary: In investigating the self-organized ion-beam nanopatterning of silicon using coherent x-ray scattering, a relationship similar to de Gennes narrowing is discovered. However, unlike the classic phenomenon, the dynamic surface exhibits a wide range of behaviors with compressed exponential relaxation at lengths corresponding to the dominant structural motif. This behavior is attributed to the morphological persistence of the self-organized surface ripple patterns.
PHYSICAL REVIEW LETTERS
(2021)
Article
Nuclear Science & Technology
Junghwan Park, Yong Suk Choi, Junhyuck Kim, Jeongmook Lee, Tae Jun Kim, Young-Sang Youn, Sang Ho Lim, Jong-Yun Kim
Summary: A new Compton scattering X-ray radiation method was proposed for real-time, non-contact measurement of organic film thickness. X-ray fluorescence and Compton scattering showed good correlations with organic film thickness, with potential applications across different thickness ranges.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Burak Guzelturk, Tiannan Yang, Yu-Chen Liu, Chia-Chun Wei, Gal Orenstein, Mariano Trigo, Tao Zhou, Benjamin T. Diroll, Martin V. Holt, Haidan Wen, Long-Qing Chen, Jan-Chi Yang, Aaron M. Lindenberg
Summary: Ultrafast laser excitation can transiently melt and reconfigure ferroelectric stripe domains on a sub-nanosecond timescale, which presents a new approach for high-speed ferroelectric data storage and computing.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Maria Cristina Righetti, Maria Laura Di Lorenzo, Dario Cavallo, Alejandro J. Muller, Massimo Gazzano
Summary: The structural evolution of poly(butylene succinate) (PBS) crystals was studied using synchrotron wide-angle and small-angle X-ray scattering (WAXS and SAXS) analysis after crystallization at 100 degrees C. Isothermal crystallization of PBS resulted in a single lamellar population. The temperature-dependent WAXS/SAXS analysis revealed the development of an additional crystal population characterized by thicker lamellae upon heating, leading to a dual lamellar population. The derived temperature dependence of the lamellar thickness for the two different crystal populations provided structural information that elucidated the multiple melting behavior of PBS.
Article
Physics, Applied
M. T. Beason, B. J. Jensen
Summary: This work presents experiments examining the phase evolution of high purity Sn following shock and release. The results show that Sn releases to states between solid and liquid under uniaxial loading, and the increase of liquid Sn reduces the solid fraction.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Chemical
Matthew R. Landsman, Sintu Rongpipi, Guillaume Freychet, Eliot Gann, Cherno Jaye, Desmond F. Lawler, Lynn E. Katz, Gregory M. Su
Summary: Fouling of polyamide membranes during reverse osmosis (RO) is a major challenge for adopting membrane technologies to treat highly contaminated waters, especially those containing organic foulants and dominant cations. This study combines bench-scale membrane fouling experiments with detailed characterization of feedwater chemistry and fouling layer composition/morphology to reveal fundamental mechanisms of (in)organic fouling during RO. The results suggest the potential design strategies of pretreatment processes and membrane materials to mitigate fouling in RO systems.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nuclear Science & Technology
Da Huang, Chun-Xia Hong, Jian-Hua Han, Nie Zhao, Xiu-Hong Li, Xi-Chang Bao, Feng-Gang Bian, Yu-Ying Huang, Chun-Ming Yang
Summary: The study found that PC71BM molecules dissolved by DIO have a nucleating effect on PTB7-Th, promoting the crystallization of PTB7-Th and reducing phase separation. Additionally, a significant evolution of lattice space and crystal coherence length was observed during thermal annealing.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Multidisciplinary Sciences
Marie E. Fiori, Kushal Bagchi, Michael F. Toney, M. D. Ediger
Summary: Superlattice structures of organic semiconductors Alq3 and DSA-Ph were prepared using PVD to study interfacial packing near buried organic-organic interfaces. Both X-ray scattering and spectroscopic ellipsometry results indicate that the substrate has a negligible influence on the PVD glass structure, suggesting the surface equilibration mechanism can describe PVD glass structure even within the first monolayer deposition on an organic substrate.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Thermodynamics
Chengzong Zeng, Jun Shen, Chaofan Ma
Summary: Low melting point metal (LMPM) based composites containing particles with high thermal conductivity have potential applications in thermal management. In this study, lead free eutectic field's metal Bi32.5In51Sn16.5 was used as the LMPM, and diamond microparticles were added as thermal conductive reinforcement. The addition of diamond particles increased the thermal conductivity of the LMPM by 85%. The thermal performance of LMPM-based heat sink filled with LMPM/diamond composites showed improved temperature control during long-time heating and faster cooling after power-off. The addition of diamond particles also affected the melting/solidification process of LMPM, prolonging the melting duration, reducing the subcooling effect, and shortening the initial solidification time.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Juan Gao, Jian Lu, Baoyi Li, Wenfei Wang, Meijuan Xie, Shuaihua Wang, Fakun Zheng, Guocong Guo
Summary: Eight structure-defined Ln(III)-based metal-organic frameworks (Ln-MOFs) were prepared and evaluated as scintillating materials. Compounds 2 and 6 exhibited remarkable X-ray scintillation performance and could be used for high-resolution X-ray imaging. These materials hold potential as sensitive X-ray detection materials for the next generation.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Multidisciplinary
Jun Zeng, Mengnan Zhang, Erjie Yang, Fucheng Tian, Liangbin Li
Summary: si-MCT is a novel strategy for identifying multi-branched crack tips step by step, achieving crack tip identification in deliberately chosen local regions and automatically updating these regions as the cracks propagate. It introduces a new concept of the active crack tip zone to handle extreme circumstances, and has shown promising results in various tests.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
(2022)
Article
Polymer Science
Tingyu Xu, Cui Nie, Fan Peng, Junfang Sheng, Liangbin Li
Summary: This study investigates the phenomenon of elastic yielding in polymer glasses after cold drawing and annealing. Molecular dynamics simulation reveals that the emergence of elastic yielding requires particles with mobility and structural ordering at the bond level. A theoretical model is proposed to explain the relationship between elastic yielding stress and bond orientation parameter and dissipated energy.
Review
Physics, Multidisciplinary
Junfang Sheng, Wei Chen, Kunpeng Cui, Liangbin Li
Summary: This paper presents the general aspects of polymer crystallization under external flow conditions, emphasizing the importance of flow-induced crystallization (FIC) in modern polymer processing. The paper summarizes the theoretical background of polymer nucleation under flow and discusses the multiple steps involved in FIC, including chain extension, conformational ordering, density fluctuation, and final perfection of the polymer crystalline structure. Experimental results and various hyphenated rheometer techniques are introduced to elucidate the hierarchical structure transition during FIC. The paper also summarizes the micro/meso scale simulations and macroscopic continuum modeling methods used in understanding and modeling FIC. Finally, the paper briefly describes future directions in the field, aiming to establish a unified theory of FIC and develop more applicable models for polymer processing.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Polymer Science
Shengyao Feng, Jianhe Zhu, Wancheng Yu, Hang Guo, Wei Chen, Ai Lu, Liangbin Li
Summary: This study investigates the structural evolution of the crystalline domain of polybutene-1 (PB-1) using ultrafast time-resolved synchrotron radiation wide-angle X-ray diffraction and a high-speed tensile apparatus. The study reveals that the stretching-induced phase transition of PB-1 consisting of form II crystals depends on the strain rate and the accompanying heating effect. The study also demonstrates that the appearance and growth of conformational defects play a significant role in the phase transition between the crystalline and amorphous structures.
Article
Materials Science, Multidisciplinary
D. M. D. Babiker, R. Yu, Z. R. Usha, W. Chen, X. Chen, L. Li
Summary: This study successfully develops an advanced nanocomposite separator with commercialization potential by combining the industrialized biaxial stretching technique with the electron beam irradiation cross-linking method. The modified separator exhibits outstanding electrolyte uptake, excellent ionic conductivity, and higher current density capability.
MATERIALS TODAY PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Xiaoyu Min, Tong Wu, Xueqing Han, Minfang An, Wancheng Yu, Liangbin Li
Summary: This study reports the synthesis of benzoylated cellulose acetate (BCA) films and investigates their birefringent properties. It is found that zero-zero birefringence films can be achieved by chemical modification and stretching. Additionally, increasing the degree of substitution of benzoyl leads to lower birefringence in the films.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Chemical
Zubaida Rukhsana Usha, Dafaalla M. D. Babiker, Rui Yu, Junsheng Yang, Wei Chen, Xin Chen, Liangbin Li
Summary: This study demonstrated a stable and large-scale super hydrophilic and underwater superoleophobic membrane, which achieved permanent high-efficiency separation performance through special treatment and modification, and can be widely used for water separation from oily wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Lixian Song, Shalin Patil, Yingze Song, Liang Chen, Fucheng Tian, Le Chen, Xueyu Li, Liangbin Li, Shiwang Cheng
Summary: We investigate the clustering and viscoelastic properties of polymer nanocomposites (PNCs) with non-attractive polymer-nanoparticle (NP) interactions using X-ray tomography and rheology. It is found that the NP clusters have linear and compact structures with preferential orientations, and changing the polymer-NP interactions from strongly repulsive to nearly athermal does not significantly affect the clustering and percolation behavior of the NP phase. Moreover, the mechanical reinforcement of PNCs is weak, contrary to the strong NP clustering observed from structural characterizations.
Article
Chemistry, Multidisciplinary
Rui Yu, Xunshuang Zhang, Yanran Lu, Wei Chen, Xin Chen, Liangbin Li
Summary: Polyethylene nanofibrous membranes (PENFMs) modified by one-step grafting strategy, called amidoximated membrane (AM) adsorbents, show supreme uranium uptake capacity and long service life. AM adsorbents exhibit excellent hydrophilicity, good adsorption capacity, and outstanding affinity for uranium. They can be reused for more than 10 cycles and have broad potential in the industrialization of uranium extraction from seawater.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Physical
Dafaalla M. D. Babiker, Zubaida Rukhsana Usha, Caixia Wan, Mohmmed Mun ELseed Hassaan, Xin Chen, Liangbin Li
Summary: This review article summarizes the fundamental requirements and properties of ideal separators for lithium-ion batteries (LIBs) and sodium-ion batteries (NIBs). Different types of battery membranes are discussed, and the fabrication and development of hybrid composite separators based on porous polyethylene (PE) membranes are described. The article also discusses advanced battery separators and compares various preparation processes for high-performance hybrid PE separators. Finally, the article provides a brief outlook for future trends in this research area.
JOURNAL OF POWER SOURCES
(2023)
Article
Polymer Science
Changzhu Lv, Hang Guo, Shengyao Feng, Qi Yan, Chunlei Xu, Wancheng Yu, Liangbin Li, Kunpeng Cui
Summary: In this study, the deformation mechanism of amorphous polymeric materials was investigated using ultrasmall-angle X-ray scattering. A stretch-induced phase separation behavior was observed in plasticized poly(vinyl butyral) (PVB) for the first time. The phase separation is influenced by stress concentration and the network structure, and the phase size increases with strain.
Article
Polymer Science
Dongmei Huang, Yun Dong, Hang Guo, Erjie Yang, Yiwen Chen, Mi Luo, Ziwen Pan, Jiandang Liu, Liangbin Li, Hongjun Zhang, Bangjiao Ye
Summary: Using the newly developed high count rate positron annihilation lifetime spectroscopy (PALS) facility, in situ PALS experiments were performed for the first time on the continuous stretching process of polymers to analyze the minute-scale evolution of free-volume holes. The tensile process was divided into four distinct stages based on the stress-strain relationship and PALS results, showing the enlargement of free-volume hole size and increasing anisotropy of free-volume holes. This work demonstrates the feasibility of disclosing the minute-scale evolution of material microstructure through in situ PALS experiments.
Article
Chemistry, Multidisciplinary
Liang Li, Min Hu, Changlong Hu, Bowen Li, Shanguang Zhao, Ting Zhou, Jinglin Zhu, Meiling Liu, Liangbin Li, Jun Jiang, Chongwen Zou
Summary: This paper proposes a new method to achieve ultrafast H transport in the WO3 layer by using an acid solution/WO3/ITO sandwich structure, which solves the problem of mass storage and removal in solids. The experiments show that this approach can be extended to the study of other atoms and oxides.
Article
Engineering, Environmental
Zubaida Rukhsana Usha, Dafaalla M. D. Babiker, Yilei Zhao, Xin Chen, Liangbin Li
Summary: The use of advanced polymeric membrane-based separation technology with layer-by-layer modification technique has proven to be effective in preventing contaminations and achieving efficient water separation from oily wastewater. The modified membrane exhibits excellent superhydrophilic and underwater superoleophobic properties, leading to high separation efficiency and permeate flux. It also possesses antibacterial properties and can remove multiple pollutants from oily wastewater in an energy-efficient manner.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Crystallography
Mingkun Xu, Jiaxiang Lin, Xiaolin Zhang, Zhenyin Li, Chuntai Liu, Changyu Shen, Chunguang Shao
Summary: This study investigates the structural evolution of uniform bulk mesomorphic iPP under stretching at different temperatures. The results show that stretching can induce mesophase to crystallize into alpha-phase or promote this phase transition synergistically with temperature. The mechanism of this transformation is proposed based on the experimental findings.
POLYMER CRYSTALLIZATION
(2022)
