Article
Materials Science, Multidisciplinary
Ze Chen, Xunxiang Hu, Minyou Ye, Brian D. Wirth
Summary: RAFM steels have been developed for fusion blanket structural materials for decades and have advantages in both mechanical properties and irradiation resistance. This study investigated deuterium transport and retention in advanced RAFM steels, revealing that ODS steels exhibit the highest deuterium retention and diffusivity compared to RAFM steels and CNAs. The results provide insight into the behavior of deuterium in these fusion structural materials.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Lawrence Kioko Munguti, Francis Birhanu Dejene, Dorah Kawira Muthee
Summary: Zeolite Na-A supported TiO2 nanopowders were synthesized and characterized for various properties. The synthesized nanoparticles exhibited high crystallinity and increased porosity compared to pure TiO2. The optical band gap decreased with increased TiO2 loading. The highest degradation rate in photocatalytic dye removal was achieved at 1.5%TiO2/zeolite Na-A loading.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Applied
Jitendra Chavhan, Ramesh Rathod, Suresh Umare, Jay Desai, Sanjay Sapate, Yogesh Mahajan
Summary: The 2D few-layered Ti3C2Tx MXene nanosheets were prepared through etching and delamination of aluminium layers from the Ti3AlC2 MAX phase. The electroactive polyamide (EPA)/Ti3C2Tx MXene nanocomposites (NCs) containing various amounts of MXene were synthesized via in-situ oxidative coupling polymerization. The NCs showed improved physical properties such as electrical conductivity, thermal stability, and adhesion strength due to the close interaction between EPA and MXene. The addition of Ti3C2Tx MXene did not affect the surface roughness and water contact angle of the EPA matrix. The NCs coated samples exhibited improved tribological properties, and the corrosion study demonstrated excellent corrosion protection ability of EPA/Ti3C2Tx MXene NCs containing 1.2 wt% MXene.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Polymer Science
Ali Atta, Mohammed F. Alotiby, Nuha Al-Harbi, Mohamed R. El-Aassar, Mohamed A. M. Uosif, Mohamed Rabia
Summary: This research paper aims to fabricate flexible PVA/Cs/TiO2 nanocomposite films for energy storage devices. Various analytical techniques confirmed the successful fabrication of the PVA/Cs/TiO2 films, with homogenous distribution of TiO2 in the PVA/Cs chains. The composite films exhibited improved electrical conductivity and dielectric constant compared to pure PVA/Cs films.
Article
Engineering, Electrical & Electronic
S. P. Deshmukh, K. R. Sanadi, R. S. Diggikar, V. B. Koli, A. Mali
Summary: Manganese-substituted magnesium chromate spinel structure was synthesized and characterized using various techniques. Results showed that an increase in manganese content led to an increase in lattice constant, while Cr3+ did not interfere with the A site.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Vidhi Dhokiya, V. S. Vadgama, Himanshu Dadhich, Bharavi Hirpara, Hardika Goswami, D. Venkateshwarlu, A. D. Joshi, R. Venkatesh, V Ganesan, P. S. Solanki, N. A. Shah
Summary: The study found that ZnO admixing does not significantly alter the lattice parameters of LCMO, but does affect its crystallinity and peak intensity. Electrical transport behaviors of the samples vary with different ZnO contents, and there is a discrepancy in resistivity values at ZnO contents of x = 0.10 and 0.20.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Dilip Kumar Meena, Rapaka S. C. Bose, K. Ramesh
Summary: Polycrystalline Sb2Te3/Te nanocomposites were prepared using different quenching mediums, and the rate of melt solidification was found to significantly affect their properties. Samples obtained with moderate cooling rates showed higher figure of merit values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
H. F. Abosheiasha, Diaa-Eldin A. Mansour, M. A. Darwish, S. T. Assar
Summary: Until recently, multifunctional epoxy nanocomposites (MENCs) have attracted the attention of researchers due to their tunable properties. This study focuses on epoxy/Li0.5Al0.35Fe2.15O4/Al2O3 nanocomposites with varying Al2O3 content. The samples were characterized and it was found that increasing the Al2O3 nanofillers enhances thermal conductivity but decreases thermal stability. The samples also exhibit soft ferrimagnetic behavior. The study explains the interesting results of decreasing electrical conductivity and dielectric properties for the composite samples based on a dual interface nanolayer model.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Jitendra Chavhan, Ramesh Rathod, Vipin Tandon, Suresh Umare, Awanikumar Patil
Summary: Electroactive Polyamide/Multi-walled carbon nanotube nanocomposites were synthesized using in-situ oxidative coupling polymerization method, exhibiting increased roughness and hydrophobicity, decreased diffusion coefficient, and excellent anticorrosion properties.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Zhao Xu, Sen Meng, Dun-Wen Wei, Rui-Ying Bao, Yu Wang, Kai Ke, Wei Yang
Summary: A polyolefin elastomer vitrimer (POEV) was prepared by constructing a dynamic cross-linked network based on boronic ester bonds. The controllable relaxation of POEV by temperature enables the actuation domain with a reduction in entropy and the skeleton domain with a relatively high entropy, greatly affecting the reversible shape memory effects (RSMEs). By combining the decreasing entropy of POEV chains and topological rearrangement, hybrid aligned carbon nanotubes (CNTs) can be constructed in POEV, enhancing its elasticity and acting as a hybrid skeleton for RSMEs.
Article
Chemistry, Multidisciplinary
Xin Zhang, Xueyan Jia, Zihang Shi, Bolun Song, Yongan Niu
Summary: H-SnO2 microspheres with adjustable shell thickness were successfully synthesized using SiO2 microspheres as templates, showing great potential in various applications.
Article
Chemistry, Physical
Yue Tang, Qiang Zhang, Hongbo Lou, Lijie Tan, Yi Tian, Shixue Guan, Wenqiang Wang, Mengyang Huang, Qiaoshi Zeng, Duanwei He, Li Lei, Fang Peng
Summary: GdB6, a material with strong isotropy and high hardness, was studied under high pressure conditions to investigate its structural stability and compression behavior. The research observed the horizontal grain rearrangement behavior of GdB6 under high pressure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Polymer Science
Shujahadeen B. Aziz, Muaffaq M. Nofal, Mohamad A. Brza, Sarkawt A. Hussein, Khaled H. Mahmoud, Zeinhom M. El-Bahy, Elham M. A. Dannoun, Wrya O. Kareem, Ahang M. Hussein
Summary: This research focused on the synthesis of direct band gap polymer composites with amorphous phase, essential for optoelectronic devices. The addition of CaTiO3 to PEO modified the optical properties, resulting in changes in refractive index and dielectric constant, as well as a shift in band gap. The altered UV/Vis absorption spectra of the nanocomposite film show potential for nanotechnology-based devices.
Review
Chemistry, Inorganic & Nuclear
Vivek Sharma, Dipak Kumar Das, Ram K. Gupta, Ghulam Yasin, Anuj Kumar
Summary: MXenes-based nanomaterials show great potential as efficient and low-cost electrocatalysts for oxygen reduction reaction. Their synthesis strategies, electronic and structural properties, and ORR performance are of significant importance. However, there are still challenges and potential aspects that need further research.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Crystallography
Zakia Alhashem, Chawki Awada, Faheem Ahmed, Ashraf H. Farha
Summary: Nanocomposites containing α-Fe2O3, NiO, and Ni2FeO4 in different ratios were synthesized and characterized by XRD. The FNN-211 sample exhibited exchange bias behavior with a magnetization of 13.41 emu/g and an exchange bias field of 35.1 Oe.
Article
Materials Science, Multidisciplinary
Zhi-Nian Li, Hao-Chen Qiu, Xiu-Mei Guo, Jian-Hua Ye, Shu-Mao Wang, Li-Jun Jiang, Jun Du, Fermin Cuevas
Summary: Li-Mg-N-B-H/ZrCoH3 composites were synthesized by ball milling under different atmospheres. The composite synthesized under hydrogen atmosphere displayed the best hydrogen storage properties. The microstructures and elemental distributions were characterized and it was found that Mg underwent in situ hydrogenation and ZrCoH3 particles were homogeneously distributed. The activation energy of the composite was calculated and found to be lower with the addition of ZrCoH3. The weakening of N-H bond was analyzed and discussed.
Article
Materials Science, Ceramics
Rocio Estefania Rojas-Hernandez, Fernando Rubio-Marcos, Aida Serrano, Sara Roman-Sanchez, Jose Francisco Fernandez, Irina Hussainova
Summary: In this study, (hk0)-textured ZnAl2O4: Nd, Ce sub-micron films were synthesized using a screen printing technique assisted by a molten salt flux and deposited over the sapphire substrate. The focus was on controlling the Ce concentration in the emitting layers and determining the key parameters for the development of efficient ZnAl2O4-based films with remarkable optical properties. The degree of crystallinity and precise adjustment of texture were found to be crucial for improving NIR luminescence efficiency. Specifically, (hk0)-textured films developed at a sintering temperature of around 1300 degrees C exhibited higher NIR emission intensity compared to (hkl)-untextured films. This research demonstrates a feasible approach to achieve high NIR emission performance and validates its applicability for a wide range of applications.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Physical
Aida Serrano, Olga Caballero-Calero, Cecilia Granados-Miralles, Giulio Gorni, Cristina Manzano, Marta Rull-Bravo, Alberto Moure, Marisol Martin-Gonzalez, Jose F. Fernandez
Summary: This study demonstrates the use of a cold sintering process (CSP) to sinter CoSb3-based thermoelectric materials for the first time. The CSP yields samples with a relative density of 86% at 150℃ with a uniaxial pressure of 750 MPa, which is increased to around 92% after a post-annealing at temperatures ≥ 500℃ in Ar atmosphere. The CSP produces Te doped-CoSb3 nanocomposites with similar morphological and structural characteristics to the starting nanopowders obtained by ball milling in air atmosphere. The sintered thermoelectric nanocomposites exhibit a maximum figure of merit of 0.12(3) at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Erika Michela Dematteis, Jussara Barale, Giovanni Capurso, Stefano Deledda, Magnus H. Sorby, Fermin Cuevas, Michel Latroche, Marcello Baricco
Summary: Hydrogen, an efficient energy carrier produced from renewable sources, plays a vital role in the transition towards CO2-free energy. This study focuses on Ti-rich Ti(Fe,Mn)0.90 alloys and their deuterides, determining their crystal structure and analyzing the influence of Mn substitution on structural properties during reversible deuterium loading. The research provides valuable insights into hydrogen storage, structural knowledge, and the application of TiFe-type alloys in integrated hydrogen tank for energy storage systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
C. Granados-Miralles, A. Serrano, P. Prieto, J. Guzman-Minguez, J. E. Prieto, A. M. Friedel, E. Garcia-Martin, J. F. Fernandez, A. Quesada
Summary: Due to their various applications, lithium ferrites are important materials for emerging technologies. The lithium content in lithium ferrites greatly affects their physical properties and the performance of devices based on these materials. In this study, magnetic lithium ferrite powders with different Li:Fe ratios were synthesized and the Li content was accurately determined using two independent methods. The sintering process led to substantial grain growth and the presence of trapped pores, while the magnetic properties and density of the ceramics were measured. The results provide valuable insights into the synthesis and characterization of lithium ferrites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Maxime Dottor, Jean-Claude Crivello, Laetitia Laversenne, Jean -Marc Joubert
Summary: The Hf-H(D) system was investigated using in situ neutron diffraction to understand its behavior under different compositions and temperatures. This study provided new insights into the phase existence and phase diagram of the system. Two major findings were the discovery of a new phase (gamma, PtS structure type) similar to the monohydride found in the H-Zr system, and the determination of the structure of the 6' phase, which is an ordered superstructure of the 6 phase (CaF2 structure type). Phase relations were established, and a new phase diagram was proposed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jing Wen, Laetitia Laversenne, Marc Novelli, Thierry Grosdidier, Patricia de Rango
Summary: Efficient, simple, and safe processes like room temperature forging are required for the development of hydrogen storage in metal hydrides. Samples made from Mg and Ni powders through this method show only Mg and Ni phases. Deuterium absorption occurs at temperatures as low as 250 degrees C due to basal fiber texture and structural defects induced by forging. Deuterium-induced mobility of metal atoms is evidenced by the absence of Mg and Ni reaction in the absence of deuterium even after annealing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Fermin Cuevas, Barbara Laik, Junxian Zhang, Mickaël Mateos, Jean-Pierre Pereira-Ramos, Michel Latroche
Summary: In this study, Ti1-xVxH2 compounds were synthesized by mechanochemistry, and their electrochemical properties as anodes in LiBs and NaBs were investigated. It was found that the compounds have a highly nanostructured fluorite-type structure, and the lattice parameter decreases with the increase of V content, leading to material destabilization. Electrochemical studies in Li-ion half cells showed that the potential of the conversion reaction varies with the vanadium content. Na-ion half cell measurements revealed significant kinetic limitations in the reactivity between (V, Ti)H2 hydrides and sodium.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Fernando Rubio-Marcos, Paula Pamies, Adolfo Del Campo, Jordi Tiana, Jonathan Ordonez-Pimentel, Michel Venet, Rocio E. Rojas-Hernandez, Diego A. Ochoa, Jose F. Fernandez, Jose E. Garcia
Summary: A clear correlation between optical absorption and light-induced strain in ferroelectrics is shown. The phenomenon of photoinduced electronic reconstruction at charged domain walls is proposed as the primary physical mechanism. These results provide a new pathway for designing ferroelectric-based devices with new functionalities, such as thickness gradient-based photo-controlled nanoactuators.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Physical
N. Chaabene, J. Zhang, M. Turmine, E. Kurchavova, V. Vivier, F. Cuevas, M. Mateos, M. Latroche, J. Monnier
Summary: This work investigates the physicochemical properties of different ionic liquids (ILs) and their mixtures with acids or bases, which have the potential to be used as electrolytes in protonic batteries. The electrochemical properties of these ILs are studied using an AB(5)-type compound as the negative electrode in a half-cell configuration. The results show that [Pyrr][Ac] IL exhibits a discharge capacity of 221 mAh/g at a low charge/discharge overpotential, and stable cycling performance with an enlarged electroactivity window of 2.2 V compared to KOH.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
A. Moure, P. Val-Gomez, A. del Campo, J. F. Fernandez, F. Rubio-Marcos
Summary: In this study, the stress dynamics and its temperature dependence arising from the Orthorhombic-Tetragonal Polymorphic Phase Boundary (PPB) in lead-free potassium sodium niobate (KNN)-based ceramics were investigated. The growth of Orthorhombic phases is limited by the high-temperature tetragonal phase distributions, and two main mechanisms regulate the decrease of stress processes: microstructural effects hinder the formation of non-180° domains, while ferroelectric domain distribution and local structural heterogeneity contribute to the phase transition widening.
MATERIALS & DESIGN
(2023)
Article
Instruments & Instrumentation
Alessio Sacco, Luisa Mandrile, Li-Lin Tay, Nobuyasu Itoh, Ankit Raj, Alberto Moure, Adolfo Del Campo, Jose F. Fernandez, Keith R. Paton, Sebastian Wood, Hyuksang Kwon, Tehseen Adel, Angela R. Hight Walker, Erlon Henrique Martins Ferreira, Ralf Theissmann, Thomas Koch, Andrea Mario Giovannozzi, Chiara Portesi, Andrea Mario Rossi
Summary: This article presents an interlaboratory comparison on Raman spectroscopy as a reliable method for quantification of TiO2 phases. Raman spectroscopy is a fast, non-invasive technique that can differentiate and measure TiO2 without the need for special reagents or sample preparation.
Article
Chemistry, Multidisciplinary
Jesus Carlos Guzman-Minguez, Cecilia Granados-Miralles, Patrick Kuntschke, Cesar de Julian Fernandez, Sergey Erokhin, Dmitry Berkov, Thomas Schliesch, Jose Francisco Fernandez, Adrian Quesada
Summary: This study aims to explore the magnetic properties of hard-soft composite permanent magnets and their correlation with microstructure. The experimental results show that increasing the particle size of the soft phase can enhance the remanence in injection molded magnets. Through experimental analysis and simulations, it is revealed that the interaction between the hard and soft phases is of a dipolar nature.
Article
Chemistry, Physical
Rocio E. Rojas-Hernandez, Fernando Rubio-Marcos, Jallouli Necib, Mati Danilson, Jose F. Fernandez, Irina Hussainova
Summary: Near-infrared (NIR) emitting phosphors are in high demand for their applications in various fields. This study focuses on synthesizing ZnAl2O4:Ce/Nd films of nanometer thickness for NIR emission using a cost-efficient approach. The use of polycrystalline alumina substrates enhances emission intensity. The concentration of Ce4+ influences NIR emission. The findings contribute to understanding film production processes and guide future studies on NIR emitters.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
I. Mena-Prado, J. J. Reinosa, M. Fernandez-Garcia, J. F. Fernandez, A. Munoz-Bonilla, A. del Campo
Summary: In this study, biobased composite materials based on poly(lactic acid) (PLA) and poly(butylene adipate-co-tera-phthalate) (PBAT) were developed for antibacterial and compostable food packaging films. The incorporation of sodium hexametaphosphate microparticles (E452i) as antimicrobial filler and acetyl tributyl citrate (ATBC) as plasticizer improved the thermal stability, crystallinity, and mechanical properties of the films. The E452i particles also provided antimicrobial properties against Listeria innocua and Staphylococcus aureus, with bacterial reduction percentages higher than 50% in films with 5 wt% of particles. The films maintained their disintegradability under industrial composting conditions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
