Article
Materials Science, Multidisciplinary
Wenbin Wang, Zidong Wang, Shigang Wang, Zhiming Shi
Summary: Porous quartz ceramics with different pore structures were prepared by self-sintering, and the particle size of desert sand played a key role in the sintering process, affecting the ratio of silica to feldspar phases.
Article
Materials Science, Multidisciplinary
Sibo Sun, Lingjiao Kong, Yiping Zheng, Zhiyong Gao, Wei Cai
Summary: By introducing a large number of point defects through high energy electron irradiation, the structural and magnetic difference between the parent phase and martensite phase in Ni-(Co)-Mn-X alloys is increased, leading to a high reversible magnetostrain of 0.22% under a relatively low magnetic field of 4 T in the transformation process.
Article
Chemistry, Physical
Arnab Kumar Das, A. Srinivasan
Summary: The aqueous solution containing polyvinyl alcohol, calcium nitrate, and ferric nitrate was electrospun to produce smooth nanocomposite fibers with a diameter of 160 nm. Heat treatment at different temperatures induced crystallization of CaFe2O4, with a transformation of the structure from cubic to orthorhombic observed above 500 degrees C. The nanofibers heat treated at 1000 degrees C exhibited a single phase orthorhombic CaFe2O4 structure with a ferrimagnetic nature.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Ulises Salazar-Kuri, Guadalupe Lopez, Pedro Saez, Fernando Arteaga-Cardona
Summary: The inclusion of CoFe2O4 as core in Gd2O3:Eu did not affect its physical properties, but significantly decreased the time needed for crystallographic phase transformation. Additionally, the fluorescence and luminescence properties of Gd2O3:Eu remained unchanged, indicating that the core particles played a role in facilitating the structural phase transformation.
Article
Materials Science, Ceramics
Zhiyong Wang, Mingdong Yi, Kai Zheng, Zhaoqiang Chen, Guangchun Xiao, Chonghai Xu
Summary: In this study, Al2O3-TiC ceramic composites with intragranular nano-ZrO2 were successfully prepared by using spark plasma sintering (SPS) technique in a vacuum environment. The impact of ZrO2 particles with different nano-sizes on the microstructure and mechanical properties of ceramics was investigated. The results demonstrate that SPS can achieve relative densification of materials without generating new impurity phases. Moreover, the addition of ZrO2 (20 nm) particles can lower the sintering densification temperature of ceramic materials. By utilizing the strong electric field generated by SPS, the nano-ZrO2 particles adsorbed on the surface of the matrix particles can penetrate into the interior of matrix grains, forming intragranular nanostructures when the grain boundaries migrate and the particles fuse. The microstructure and mechanical properties of ceramic materials can be enhanced through the formation of intragranular structures composed of nanoparticles. The increased strength and toughness of the ceramic materials are mainly attributed to crack deflection, crack bridging, and transgranular fracture.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Mengyao Su, Xiaoying Hou, Jiangbin Zhang, Dewei Zhao, Congmian Zhen, Li Ma, Denglu Hou
Summary: In this study, the cyclic reversibility of the martensitic transformation and magnetocaloric effect in a Ni51.0Mn20.8Ga22.4Cu5.8 alloy was investigated. The martensitic transformation showed small hystereses and excellent reversibility upon 50 thermal and magnetic cycles due to the good geometric compatibility of the martensite/austenite transferring interface. A reversible magnetic entropy change of -21.7 J/kgK was achieved under 50 kOe after performing 50 magnetic cycles, indicating the excellent reversibility of the magnetocaloric effect in the alloy.
Article
Materials Science, Ceramics
Tiberiu Roman, Daniel Gherca, Adrian-Iulian Borhan, Marian Grigoras, George Stoian, Nicoleta Lupu, Ina Turcan, Nicanor Cimpoesu, Bogdan Istrate, Ioana Radu, Raluca-Stefania Danila, Aurel Pui
Summary: The synthesis of Quaternary Ni(1-x)CuxFe(2-y)CeyO(4) complex nano-ferrites system with different cerium content ratio and copper substitution degree was achieved using co-precipitation wet chemical technique. The nanoparticles were heated up to 600 degrees C to stabilize the specific crystalline spinel structure, with a limit of cerium content around 0.08 to 0.10. Thermal treatment at 950 degrees C affected phases segregation, with differences in color and size of pelletized samples observed. The study deeply analyzed the cation distribution, crystal structure, morphology, magnetic, and electrical properties of the samples.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Rui-Xin Luo, Milad Kermani, Zhao-Liang Guo, Jian Dong, Chun-Feng Hu, Fei Zuo, Salvatore Grasso, Bei-Bei Jiang, Guang-Lin Nie, Zheng-Qing Yan, Qiang Wang, Yan-Ling Gan, Fu-Po He, Hua-Tay Lin
Summary: Ultrafast High-temperature Sintering (UHS) has been successfully applied to fabricate silicon nitride (Si3N4) bulks in a short period of time, achieving high density and promoting the evolution of the liquid phase sintering system towards a nonequilibrium state.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Xi Wang, Shicheng Zhou, Kaiyang Liu, Shan Deng, Yaqi Xiao, Xiuli Chen, Huanfu Zhou
Summary: Extensive research has been conducted on microwave dielectric materials for their application in 5G and 6G communication technologies. This study broadened the sintering temperature range of MT-C ceramics using a composite of CeO2 and Mg2TiO4 ceramics, and stabilized their microwave dielectric performance. The prepared MT-C ceramics exhibited low loss and uniform density, making them suitable for industrial applications in the field of communication.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Md. Ashraful Alam, Raton Kumar Bishwas, Sabrina Mostofa, Shirin Akter Jahan
Summary: The main objective of this study is to convert TTIP to ultrapure high crystalline single crystal anatase-TiO2 at low temperature (45 degrees C), and the purity of the nano single-crystal anatase-TiO2 observed is 100%. The lattice parameters, lattice volume, crystal strain and crystallite size are confirmed by X-ray diffraction analysis, and further confirmed by selected area electron diffraction and nano beam diffraction.
Article
Chemistry, Analytical
Jian-Fei Gao, Jing-Feng Hou, Ling-Bin Kong
Summary: A simple NH3-induced reduction process was reported to synthesize metallic Co nanoparticles, which were explored as electrode materials for supercapacitors for the first time. The metallic Co exhibited a high specific capacity and excellent capacity retention after a large number of cycles. The hybrid supercapacitor of metallic Co//activated carbon achieved a high energy density at a relatively high power density.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Chemical
Abbas Saeed Hakeem, Saleh Mohammed AlMansour, Muhammad Ali Ehsan, Qasem Drmosh, Akolade Idris Bakare, Faheemuddin Patel, Sharafat Ali
Summary: A mechanically induced phase transition in the Sn-Te system and its dependence on the milling time were investigated. The ball milling process resulted in the synthesis of Sn-Te solid solution with excellent structural integrity.
Article
Materials Science, Ceramics
Jinghong Chen, Xuemei Liu, Hao Lu, Haibin Wang, Xiaoyan Song
Summary: The effects of representative sintering techniques on the residual thermal stress (RTS) in WC-Co composites were investigated. The processing parameters of spark plasma sintering (SPS) and sinter-hot isostatic pressing (Sinter-HIP) were used to quantify RTS and its mechanisms. The results showed that the WC phase had compressive stress and the Co phase had tensile stress during cooling. The RTS was more concentrated at the acute dihedral angles of WC/Co interfaces in SPSed cermets.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Yeqing Ling, Xiandong Hao, Yuxi Gui, Hongju Qiu, Qiannan Li, Hewen Zheng, Mamdouh Omran, Lei Gao, Jin Chen, Guo Chen
Summary: Nanosized CeO2-ZrO2 powders prepared by atmospheric pressure pyrolysis were used as raw materials to prepare CeO2-ZrO2 ceramics using microwave sintering. When the CeO2 content is more than 5 mol%, the tetragonal phase peak appears in the sample, and the grain size of the ceramics is negatively related to Ce content. CeO2 reduces the solid solution's phase transformation temperature with microwave heating.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Siyuan Huang, Liang Qin, Yong Li, Lingwei Li
Summary: The doping of rare earth Y was found to significantly impact the crystal structure, martensitic transformation temperature, and magnetocaloric effect of Mn-Ni-Co-Ti alloy, leading to enhanced magnetic entropy change and refrigerant capacity.
Article
Chemistry, Multidisciplinary
Kundan Jangam, Kundan Patil, Sagar Balgude, Sunil Patange, Paresh More
Summary: Cobalt-doped magnetically separable Zn1-xCoxFeMnO4 ferrite nanoparticles were synthesized using the auto-combustion process of sol-gel method. The introduction of cobalt led to changes in crystal structure and magnetic properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Physics, Applied
Sagar E. Shirsath, R. H. Kadam, K. M. Batoo, Danyang Wang, Sean Li
Summary: In this study, the magnetic properties of Sr0.8Ca0.2AlxCoxFe12-2xO19 hexagonal ferrites were improved through Co2+-Al3+ substitution. These ferrites show great potential as rare earth-free magnets with improved saturation magnetization, coercivity, and microwave absorption characteristics. This research highlights the possibility of using hexagonal ferrites as alternatives to rare earth-based permanent magnets.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Yukiko Yasukawa, Kouhei Nozawa, Taneli Tiittanen, Maarit Karppinen, Johan Linden, Sagar E. Shirsath, Shin Yabukami
Summary: A high-quality magnetic Ni0.5Zn0.5Fe2O4 ferrite powder/polymer composite sheet was fabricated using common and environmentally friendly elements, and tested for dynamic permeability at frequencies up to 50 GHz. Two different methods were used for the high-frequency permeability measurements, both producing essentially equivalent results. The sample exhibited uniaxial-anisotropic behavior in the parallel direction of the sheet, showing potential as an anisotropic electromagnetic wave-interference material at GHz frequencies.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Ceramics
S. S. Choudhari, S. R. Wadgane, Bharatratna P. Gaikwad, S. S. Satpute, Khalid Mujasam Batoo, Omar M. Aldossary, Sagar E. Shirsath, R. H. Kadam
Summary: Materials with magneto-electric (ME) properties were prepared by combining piezoelectric-BTO and piezomagnetic-CCFO phases into three dimensional nano-particles. The research investigated the crystalline nature, magnetic properties, and dielectric properties of the materials, finding that the dielectric constant increased with the percentage of BTO and the sample with 60% CCFO and 40% BTO had the highest ME coefficient.
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Multidisciplinary
Devendra S. Wagare, Sagar E. Shirsath, Mujahed Shaikh, Prashant Netankar
Summary: Solvents make up about 80% of the chemicals used in chemical synthesis, with many of them being flammable or toxic. Sustainable solvents can be easily recovered and reused, and can support catalysts effectively.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Thermodynamics
B. L. Shinde, U. M. Mandle, A. M. Pachpinde, K. S. Lohar
Summary: Ferro spinels with varying Al3+ content were synthesized using a co-precipitation method, showing decreased lattice parameter and specific absorption bands in the infrared spectrum with increasing Al3+ concentration. Microstructures of the calcinated samples revealed porous characteristics in the ferrite samples.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Materials Science, Multidisciplinary
Ravindra N. Kambale, Krishnakumar M. Sagar, Sunil M. Patange, Sagar E. Shirsath, K. G. Suresh, Vaishali A. Bambole
Summary: Nd3+-substituted Ni-Zn ferrite nanoparticles were synthesized using the sol-gel autocombustion technique, and a nanocomposite with polyaniline (PANI) was prepared through in situ polymerization. The microwave absorbing properties of both the ferrite nanoparticles and the ferrite/PANI nanocomposite were investigated, showing that the nanocomposite has excellent absorption properties for incident microwaves.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yassine Slimani, Munirah A. Almessiere, Sadik Guner, Bekir Aktas, Sagar E. Shirsath, Maxim Silibin, Alex Trukhanov, Abdulhadi Baykal
Summary: This study compared the structure, morphology, optical, and magnetic properties of Er3+ and Sm3+ codoped CoFe2O4 nanospinel ferrite synthesized via hydrothermal and sonochemical methods. The results showed that the distribution of cations and the variation in crystallite/particle sizes are key factors in controlling the intrinsic properties of the samples.
Proceedings Paper
Polymer Science
Sandip B. Deshmukh, Kalyani H. Deshmukh, Maheshkumar L. Mane, Dhananjay Mane
Summary: TiO2 has emerged as an excellent heterogeneous photocatalyst for various environmental and energy applications, thanks to its ability to be doped with nitrogen to tune its band gap into the visible light range. The material's structural phase formation, crystallite size, bonding confirmation, and morphology have been extensively studied using techniques like XRD, FTIR, FESEM, and HR-TEM. The compositional stoichiometry and optical properties of the N-doped TiO2 material have been confirmed through EDAX analysis and UV-Visible spectrophotometer, respectively.
MACROMOLECULAR SYMPOSIA
(2021)
Article
Chemistry, Multidisciplinary
Sagar E. Shirsath, M. Hussein N. Assadi, Ji Zhang, Nitish Kumar, Anil S. Gaikwad, Jack Yang, Helen E. Maynard-Casely, Yee Yan Tay, Jianhao Du, Haoyu Wang, Yin Yao, Zibin Chen, Jinxing Zhang, Shujun Zhang, Sean Li, Danyang Wang
Summary: Perovskite multiferroics have attracted significant attention in the development of multifunctional electronic devices. This study demonstrates the interface-driven multiferroicity in low-cost and eco-friendly bulk polycrystalline materials. The fabricated nanocomposites exhibit both room-temperature ferromagnetism and ferroelectricity, with a robust magnetoelectric coupling.
Article
Materials Science, Ceramics
U. K. Wadne, R. H. Kadam, K. M. Batoo, M. L. Mane, Sajjad Hussain, Sagar E. Shirsath, A. R. Shitre
Summary: The authors synthesized Eu-substituted Bi-Fe-Mn multiferroics and investigated the effects of different Eu doping concentrations on the crystal structure, magnetic and dielectric properties of the material.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
U. M. Mandle, L. A. Dhale, S. B. Godase, K. S. Lohar, B. L. Shinde
Summary: Cobalt and chromium doped ferro spinels were synthesized using the sol-gel auto-combustion method with glycine as a fuel. The calcination temperature of the samples was determined by TGA/DSC analysis. The results of elemental analysis, XRD, Rietveld analysis, IR spectra, SEM, and TEM all indicate the successful synthesis of the desired structures and well-defined nanoparticles. Additionally, the synthesized ferrite nanoparticles were used as a catalyst for the synthesis of the target product, 1, 8-dioxodecahydroacridines.
Article
Chemistry, Multidisciplinary
Ram H. Kadam, Ravi Shitole, Santosh B. Kadam, Kirti Desai, Atul P. Birajdar, Vinod K. Barote, Khalid Mujasam Batoo, Sajjad Hussain, Sagar E. Shirsath
Summary: The stoichiometric compositions of a ferrite system with a chemical formula CoCr0.5DyxFe1.5-xO4 were prepared using the sol-gel auto-combustion method. The structural, morphological and magnetic properties were studied using various techniques. XRD analysis confirmed the cubic spinel structure of the samples. The cation distribution and magnetoelectric properties were also investigated.
Proceedings Paper
Materials Science, Multidisciplinary
Vinod N. Dhage, Maheshkumar L. Mane, S. B. Rathod, S. M. Rathod, K. M. Jadhav
Summary: Al3+ substituted barium hexaferrite nanoparticles were prepared using sol-gel auto combustion technique. The electrical resistivity and dielectric properties of the samples were studied, showing an increase in resistivity and dielectric parameters with higher Al3+ content, while AC electrical conductivity increased with frequency. AC impedance spectroscopy was utilized to analyze the internal grain resistance and grain boundary distribution of the samples.
MATERIALS TODAY-PROCEEDINGS
(2021)
