Article
Materials Science, Coatings & Films
Nina Schalk, Christian Saringer, Alexander Fian, Velislava L. Terziyska, Jaakko Julin, Michael Tkadletz
Summary: In this study, a series of TaAl(O)N films were deposited with varying oxygen and nitrogen content, affecting the metal/non-metal ratio, crystal structure, and mechanical properties. The films were characterized using a variety of techniques to investigate their structure and performance comprehensively.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Chen Liu, Shitong Wei, Shanping Lu
Summary: The corrosion behaviors of 9Cr-Si heat resistant steel deposited metals with different Si contents in oxygen-saturated static lead-bismuth eutectic at 550 degrees C were studied. The oxide scale was found to have a three-layer structure comprising of outer layer, inner layer, and inner oxidation zone (IOZ). The growth rate of the oxide scale decreased with increasing Si content in the steel. The oxidation mechanism of high Si 9Cr deposited metal was also discussed, highlighting the emergence, disappearance, and regeneration of IOZ during the corrosion process, as well as the division of the inner layer into two sublayers.
Article
Materials Science, Multidisciplinary
E. Lawrence Bright, J. E. Darnbrough, D. T. Goddard, I. Griffiths, M. Cattelan, R. Springell
Summary: This study investigates the rate and mechanism of uranium mononitride oxidation, providing insights into fuel surface oxidation during manufacture and storage. The study reveals the formation of a UO2+xNy layer and a U2N3 interlayer on the surface of an epitaxial (001) UN thin film. This topotactic formation is predicted to play a critical role in passivation during long-term structural investigation.
Article
Materials Science, Ceramics
R. L. Silva, J. H. Araujo, A. C. Lima, E. C. Rocha, M. A. Morales, A. S. Carrico
Summary: In this study, single phase Sm doped Co-ferrites nanoparticles were synthesized and characterized, with the saturation magnetization and coercivity field decreasing as the concentration of Sm3+ increased. The cation distribution was found to correspond to a partially inverted ferrite, and the magnetocrystalline anisotropy energy was determined from hysteresis curves. The results were in close agreement with the experimental results due to the presence of superparamagnetic and thermally blocked nanoparticles.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
D. Castillo-Hernandez, M. Perez-Gonzalez, S. A. Tomas, J. L. Jimenez-Perez, J. F. Sanchez Ramirez, Z. N. Correa-Pacheco
Summary: This study reports on the detection of microbiological contamination in ancient books from the Franciscan Library of San Pedro Cholula in Mexico. Various fungi were found on the papers, and TiO2 nanoparticles synthesized by the sol gel process were effective in inhibiting their growth. The study proposes methodologies for the preservation of historical documents using sensitive techniques.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Physical
Sajjad Hussain, Hailiang Liu, Sikandar Aftab, Khalid Mujasam Batoo, K. Karuppasamy, T. Maiyalagan, Hyun-Seok Kim, Jungwon Kang, Jongwan Jung, Dhanasekaran Vikraman
Summary: In this study, bulk heterojunction organic photovoltaics (OPV) were fabricated using different hybrid composites doped with a novel combination of PBDB-T:PCBM/hybrid-nanostructures. The structure and morphology of the W2C@rGO and Mo2C@rGO composites were established through a simple chemical reduction process. The incorporation of Mo2C@rGO and W2C@rGO hybrid into the active layers resulted in significantly improved power conversion efficiency (PCE) of 6.98% and 6.84%, respectively, compared to pure PBDB-T:PCBM and other materials. These findings suggest that the hybrid incorporated active layers facilitate efficient charge transport and extraction, leading to high-efficiency photovoltaic devices.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Sachiko Ono, Hidetaka Asoh
Summary: The process of hot water sealing of anodic alumina films was investigated, revealing that as sealing time increases, the quantity and size of boehmite flakes within the films also increase, ultimately forming a three-layered structure.
Article
Materials Science, Multidisciplinary
Shitong Xu, Jiansong Huang, Wen Pei, Meiyi Yao, Lijuan Hu, Yaoping Xie, Xiaodong Lin, Xue Liang, Jianchao Peng, Jing Xu, Bangxin Zhou
Summary: The experimental results showed that reducing the tin content can improve the corrosion resistance of the alloy in deaeration and oxygen-containing environments, while the presence of oxygen accelerated the corrosion rate of the alloy. However, with the increase of tin content, the enhancing effect of oxygen on corrosion weakened to some extent.
Article
Chemistry, Physical
Narthana Kandhasamy, Gopal Ramalingam, Govindhasamy Murugadoss, Manavalan Rajesh Kumar, Gunasekaran Manibalan, Rajabathar JothiRamalingam, Hemraj M. Yadav
Summary: The study successfully synthesized highly uniform copper and zinc oxide anchored nanoparticles on the surface of silica using a sol-gel method. Detailed structural and compositional analyses were carried out using X-ray diffraction, X-ray photoelectron spectroscopy, Laser Raman, field emission scanning electron microscopy, and transmission electron microscopy. The charge-discharge results showed excellent performance in specific capacitance at high current densities for the composite materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Juliusz Winiarski, Wlodzimierz Tylus, Miroslawa Pawlyta, Bogdan Szczygiel
Summary: Deep eutectic solvents are successfully used as green solvents for electrochemical polishing of titanium, as well as for the production of nanometric TiO2 layers on Grade 2 titanium with thickness and crystallinity controlled by anodizing time. Increasing the anodizing time leads to thicker TiO2 layers with more developed surfaces and nanosized crystalline domains. The process also involves the incorporation of small amounts of organic carbon, most likely DES residues, into the structure of TiO2 layers.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Xuehui Hao, Qixiang Fan, Yuanyuan Li, Ruping Miao, Jie Ma, Hui Chen, Xingchuan Zhao, Changzheng Wang
Summary: The study compared the structural, mechanical, and corrosion behaviors of homogeneous and gradient CrAlSiN coatings, finding that the homogeneous coating had a consistent chemical composition and phase structure, while the gradient coating exhibited variations in composition and microstructure from the coating/substrate interface to the surface. Both coatings had similar hardness, but the gradient coating showed better performance in plastic deformation resistance and adhesive strength, along with lower corrosion rate and higher protective efficiency.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Sung-Dae Kim, Ihho Park
Summary: This study used Lorentz transmission electron microscopy and in situ heating experiment to investigate the shift in magnetic domain structure during the transition from transverse-conical spin arrangement to ferrimagnetic spin order in Z-type hexagonal ferrites. Real-time dynamics of the magnetic domain structure changes were observed, and the magnetization transition and the formation of cross-tie domain walls were confirmed.
Article
Engineering, Chemical
Md Noor Arifin, Mostafa Tarek, Md Maksudur Rahman Khan
Summary: In this study, boron-doped TiO2 (B@TiO2) photocatalysts were synthesized using a sol-gel method, and the results showed that the catalysts exhibited enhanced visible light absorption and photocatalytic activity. Through the optimization of catalyst synthesis, the highest degradation rate of 93% was achieved for the model dye.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Reshma K. Madathil, Vincent Thoreton, Oystein Prytz, Truls Norby
Summary: Thermoelectric ZnSb has a native surface oxide layer of Sb2O5 +ZnO. High-temperature oxidation in air results in selective oxidation to ZnO, with no detectable Sb by STEM-EDS. The oxidation process follows parabolic kinetics and is influenced by both Zn and O diffusion through the protective ZnO layer.
Article
Materials Science, Multidisciplinary
Liang Wei, Weimin Qin
Summary: The corrosion behavior of AlCoCrFeNi2.1 eutectic high-entropy alloy in aerated sulfuric acid solution was studied. The corrosion mechanism involves micro-galvanic corrosion cells and localized corrosion between different phases. The alloy shows better corrosion resistance compared to most Al-containing dual-phase HEAs.
Article
Multidisciplinary Sciences
Preetam Ghosh, Pratip Rana, Vijayaraghavan Rangachari, Jhinuk Saha, Edward Steen, Ashwin Vaidya
ROYAL SOCIETY OPEN SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
R. Masso, S. N. Tripathy, F. A. Aponte, D. K. Pradhan, R. Martinez, R. Palai
Summary: A study was conducted on BiFeO3-GdMnO3 nanocrystalline ceramic solid solutions prepared by auto-combustion method, focusing on structural, microstructural, spectroscopic, dielectric, electrical, ferroelectric, ferromagnetic, and magnetodielectric coupling properties. The presence of a morphotropic phase boundary at x = 0.10 was confirmed through Rietveld refinement analysis, in agreement with Raman spectroscopy and HRTEM studies. The solid solutions exhibited resistive behavior at low frequencies and capacitive behavior at higher frequencies.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Oncology
Edian F. Franco, Pratip Rana, Aline Cruz, Victor V. Calderon, Vasco Azevedo, Rommel T. J. Ramos, Preetam Ghosh
Summary: In this study, the performance of four different deep learning autoencoders for cancer subtype detection was compared, showing better results than traditional data fusion techniques. The results suggest that the interaction of different cancer data types through autoencoders can be used for the prediction and characterization of patient subgroups and survival profiles.
Article
Oncology
Pratip Rana, Phuc Thai, Thang Dinh, Preetam Ghosh
Summary: A novel feature selection algorithm DTA was introduced for selecting important, non-redundant, and relevant features from diverse omics data, demonstrating superior performance in binary and multiclass classification problems across different diseases. The algorithm improved disease subtyping accuracy for various cancer types, suggesting its potential for supporting biomarker selection, precision medicine design, and disease sub-type detection in the scientific community.
Article
Computer Science, Software Engineering
Om Prakash Samantray, Satya Narayan Tripathy
Summary: The authors proposed a malware detection model using operation codes as features, achieving a detection accuracy of 98.7% through the use of the OPEC algorithm and various supervised learning algorithms.
INTERNATIONAL JOURNAL OF INFORMATION SECURITY AND PRIVACY
(2021)
Article
Materials Science, Multidisciplinary
Satya N. Tripathy, Kabita K. Satpathy, Ratnakar Palai, Dillip K. Pradhan
Summary: The study found that with the increasing content of YMnO3, the conductivity and relaxation behavior of the material changed. The compositional data of dielectric modulus suggest that the conduction mechanism changes with composition. Additionally, the bulk capacitance of the material decreases with increasing magnetic field.
Article
Materials Science, Multidisciplinary
S. Sahoo, T. Badapanda, S. Sarangi, Satya N. Tripathy
Summary: This manuscript describes the dielectric properties and conduction mechanism of Dysprosium doped 0.92Na(0.5)Bi(0.5)TiO(3)-0.08BaTiO(3) (BNT-BT8) composition prepared by solid-state reaction method. The study shows that the increase in Dy content leads to a decrease in the pseudo-cubic lattice parameter of the R3c phase. Scanning electron microscope analysis reveals modification in the microstructure of the doped samples. The temperature and frequency-dependent dielectric data indicate enhancement of the dielectric dispersion with doping.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
R. Paikaray, T. Badapanda, H. Mohapatra, T. Richhariya, Satya N. Tripathy, Nameeta Brahme
Summary: This paper reports the structural, optical, photoluminescence, and thermoluminescence behaviors of Praseodymium doped CaWO4 phosphors prepared via a solid-state reaction route. The study reveals that the increase in Pr concentration leads to an increase in unit cell volume and bandgap. Photoluminescence analysis shows quenching at x = 0.02 with a critical transfer distance of 20 angstroms. The application of Dexter theory confirms that the concentration quenching is caused by dipole-dipole interaction. The phosphors emit red color according to CIE Chromaticity. Thermoluminescence analysis indicates second-order kinetics with a critical quenching concentration at x = 0.02.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
S. Sahoo, R. Barman, T. Badapanda, S. Sarangi, Satya N. Tripathy
Summary: In this study, the structural evolution, dielectric, and conductivity properties of lead-free ceramics doped with CeO2 were investigated. X-ray diffraction analysis revealed a dual-phase structure of rhombohedral and tetragonal crystals, with Ce ions diffusing into the lattice. The permittivity data showed that doping with CeO2 changed the maximum dielectric constant. The ac-conductivity of the samples was analyzed using Arrhenius's law and Mott's variable range hopping mechanism, and model parameters were calculated.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
S. Lenka, T. Badapanda, P. Nayak, S. Sarangi, S. Anwar, Satya N. Tripathy
Summary: We investigated the crystal structure, dielectric, and conductivity properties of Gd doped Na0.5Bi0.5TiO3 ceramics. The samples exhibited rhombohedral crystal structures with the R3c space group. The Raman modes broadened with an increase in Gd percentage. The temperature-dependent dielectric data showed an increase in maximum dielectric permittivity with Gd content. The conductivity was examined using Arrhenius's equation and Mott's variable-range hopping mechanism.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Multidisciplinary
S. Anwar, B. Choudhary, T. Badapanda, R. Barman, S. Chaterjee, S. Jayasri, A. Sharmistha, P. Elorika, Satya N. Tripathy
Summary: Lead-free (Ba0.85Ca0.15)(Zr0.1Ti0.9)1-xMnxO3 ceramics with varying Mn doping concentrations (x = 0.01,0.02,0.03,0.04,0.05) were prepared using a solid-state reaction method. The structural analysis revealed a dual phase crystal structure consisting of tetragonal and orthorhombic phases. Mn doping was found to modify the grain size. Dielectric studies showed a decrease in dielectric constant and a lowering of the Curie temperature with increasing Mn content. A well-saturated ferroelectric loop was observed for all compositions, although the remnant polarization and coercive electric field decreased. The elastic compliances, piezoelectric and coupling parameters were calculated, indicating the suitability of the composition for energy harvesting applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Joseph Pateras, Pratip Rana, Preetam Ghosh
Summary: Physics-informed machine learning (PIML) is an emerging field that utilizes physically relevant prior information to extract physically relevant solutions from data lacking in quantity and veracity. This paper discusses recent advancements in PIML and highlights novel methods and applications of domain decomposition in physics-informed neural networks (PINNs). It also explores the use of neural operator learning to intuit relationships in physics systems traditionally modeled with complex governing equations and expensive differentiation techniques. Additionally, the paper discusses the limitations and applications of traditional physics-informed machine learning, and proposes a novel taxonomic structure to categorize PIML based on the derivation and injection of physics information into the machine learning process.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
R. Paikaray, T. Badapanda, H. Mohapatra, T. Richhariya, K. Tiwari, Nameeta Brahme, Satya N. Tripathy
Summary: This manuscript presents the characteristics of Terbium incorporated CaWO4 samples prepared by solid-state reaction. The samples exhibited tetragonal crystal structures and anomalies in unit cell volume at x = 0.03. The band gap energy values increased with increasing compositions. The photoluminescence behaviors and FWHM values were analyzed, revealing a critical quenching concentration at x = 0.03. The synthesized samples showed green emission color with high color purity, correlated color temperature, color rendering index, and luminous efficiency of radiation values. Thermoluminescence spectroscopy revealed lower UV dosimetry and second-order kinetics for the x = 0.03 sample irradiated with a 15 min UV dose.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Multidisciplinary
R. Paikaray, T. Badapanda, H. Mohapatra, T. Richhariya, Nameeta Brahme, Satya N. Tripathy
Summary: This manuscript presents a study on the crystal structure, photoluminescence, and thermoluminescence behavior of Samarium doped CaWO4 phosphor samples synthesized by the solid-state reaction method. The crystal structure was found to be cento-symmetric tetragonal with increasing unit cell volumes for higher Sm composition. The energy bandgaps of the phosphors were directly proportional to the cell volume. The excitation and emission spectra revealed a critical quenching concentration at x = 0.02 with a dipole-dipole interaction distance of 20 angstrom. The phosphors exhibited an orange-red emission color, and their UV dosimetry followed second order kinetics.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Computer Science, Theory & Methods
Binayak Panda, Satya Narayan Tripathy
INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS
(2020)
