Article
Materials Science, Ceramics
Nicolas Gabriel Orsetti, Eduardo Rosado, Antonio Alonso, Gabriel Lorenzo, Rodrigo Moreno, Gustavo Suarez
Summary: Tape cast Li2ZrO3 thin sheets were successfully fabricated using organic stabilizers and an acrylic binder emulsion. The slip composition was optimized based on zeta potential and rheological flow curves, and the resulting tapes exhibited suitable strength and density after sintering. This detailed work is important for future research on solid-state electrolytes based on Li2ZrO3 tapes.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Larissa B. Silva, Hugo P. A. Alves, Anna K. C. Freitas, Sheyla K. J. Marques, Wilson Acchar
Summary: The research successfully lowered the sintering temperature of ceramic tapes by incorporating sugarcane bagasse ash waste into alumina tapes. The addition of SCBA waste improved the physical, mechanical, and dielectric properties, making the discoveries environmentally friendly and economically advantageous. The stabilized Al2O3-SCBA tape with high dielectric constant shows promise for aircraft turbine applications.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Premysl Stastny, Jana Smieskova, Martin Trunec
Summary: This study describes a method for the production of multilayer tapes using the aqueous epoxy-based gel-tape co-casting of ceramic suspensions. It demonstrates the applicability of this method for the preparation of high-quality fine powder ceramic stacks.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Fernando Valenzuela-De la Rosa, Roal Torres-Sanchez, Carlos Dominguez-Rios, Alfredo Aguilar-Elguezabal
Summary: By modifying the CO2/CO ratio in different atmospheric gas conditions, the sintering of FeCrCB alloy powders can be improved to enhance the hardness and abrasion resistance of hardfacing coatings. Under a 10C atmosphere, a higher microhardness and abrasion resistance were observed due to the formation of more hard phases, while the presence of CO led to lower abrasion resistance through the formation of higher volumetric fractions of eutectic phases.
Article
Materials Science, Ceramics
Yingying Chen, Deli Ma, Qinggang Li, Jun Ji, Zhenyu Zhang, Yuhang Du, Sique Chen, Hailing Yang, Yulin Wei, Guopu Shi, Baocai Pan, Junyan Wu, Zhi Wang
Summary: Ti3SiC2/Al2O3 multilayered composites were successfully prepared by tape casting and hot pressing sintering. The introduction of Ti3SiC2 interface layer significantly improved the friction performance and wear rate of the composite material, but decreased its bending strength.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Cristina Ojalvo, Marcos Ayllon, Angel L. Ortiz, Rodrigo Moreno
Summary: Superhard B4C parts with microarchitectures composed of ceramic layers and evenly-spaced rGO-enriched reinforcing interlayers were successfully fabricated for the first time in this study. The multilayered laminates produced through aqueous colloidal processing and coating techniques demonstrated excellent hardness and crack propagation resistance.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
P. Stastny, Z. Chlup, P. Roupcova, M. Trunec
Summary: A new method for preparing high-strength zirconia tapes was introduced in this study. It was found that sodium ions have a negative impact on the strength and toughness of zirconia ceramic samples. The experimental results demonstrated the significant elastic deformation of zirconia tapes, with the ability to achieve a small bending radius.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2021)
Article
Biotechnology & Applied Microbiology
Qingying Luo, Lan Cheng, Maiqi Zhang, Yuxuan Mao, Yuanfei Hou, Wen Qin, Jianwu Dai, Yaowen Liu
Summary: This study compared nine composite adsorbents prepared by electrospinning, tape-casting, and the powder method, with polyacrylonitrile/ferric hydroxide (fiber) showing the highest arsenic(III) adsorption capacity. Adjusting the pH to around 9 and operating at 15 degrees Celsius resulted in the highest adsorption capacities, demonstrating that electrospun membranes had the highest efficiency for arsenic removal among the three types of adsorbents.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Electrical & Electronic
Hassakorn Wattanasarn, Oraphan Hemadhulin, Thawatchai Ngennam, Sirilak Saenklan
Summary: The piezoelectric tape ceramic fabricated using three-step sintering technique showed superior density, dielectric properties, and piezoelectric properties compared to conventional sintering, with an enhanced remanent polarization and energy storage density achieved.
INTEGRATED FERROELECTRICS
(2021)
Article
Materials Science, Ceramics
Muhammad Waqas Khalid, SangCheol Park, InYeong Kim, Javid Hussain, Amjad Hussain, Ammad Ali, Bum Sung Kim, Bin Lee
Summary: This study investigated the microwave hybrid sintering and conventional sintering of Al2O3- and Al2O3/ZrO2-laminated structures fabricated via aqueous tape casting. Microwave hybrid sintering resulted in higher densification and hardness compared to conventional sintering. The flexural strength and fracture toughness of the microwave-hybrid-sintered Al2O3/ZrO2 were significantly higher than those of the conventionally sintered composite, despite a lower sintering temperature. The outcomes were attributed to the tape casting and lamination processes, microwave effects, stress-induced martensitic phase transformation, and grain refinement phenomenon.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Angelo Oliveira Silva, Dachamir Hotza, Ricardo Machado, Kurosch Rezwan, Michaela Wilhelm
Summary: An asymmetric alumina microfiltration membrane with high performance was prepared by combining freeze and tape casting techniques followed by two sintering steps. The morphology influences were investigated for different solid loadings, additives content and the assembled layer membrane structures. The assembled ceramic membrane had an average pore size between 30 and 50 m, suitable for microfiltration separation with porosity in the range of 26-50% and water flux of 11-32 m(3) m(-2) h(-1) bar(-1).
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Yuan Sun, Hang Xie, Linjing Liu, Qiangwei Kou, Shantao Zhang, Bin Yang, Wenwu Cao, Yunfei Chang
Summary: By integrating crystallographic texture and second-phase toughening strategies, the fracture resistance and mechanical reliability of alumina multilayer composites have been effectively improved. The addition of ZrO2 significantly enhances the mechanical performance of the composites and reduces sensitivity to flaw size. The enhanced mechanical properties are mainly attributed to higher compressive stresses, more crack bifurcations, and longer crack deflection paths within the textured layers.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Yu He, Yunxiang Cai, Ling Zhang, Kaige Liu, Gang Liu, Bingxi Xiang, Jianpang Zhai, Ling Bing Kong, Tianshu Zhang, Yin Liu
Summary: This study successfully fabricated Al2O3 transparent ceramics through a one-step ball milling process, achieving a thickness of approximately 0.1 mm with uniform texture and no distortion. Dry pressing was found to improve the densification and promote grain growth of bilayer tapes.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Miao-Miao Cui, Xiao Zhang, Kuan-Guan Liu, Hai-Bo Li, Mang-Mang Gao, Sen Liang
Summary: Dense nano-grained Ni0.7Mn2.3O4 NTC thermistors were fabricated using a novel two-step sintering approach, showing significant changes in electrical properties and aging behavior with increasing sintering temperature. The samples exhibited high relative density and stable electrical performance under certain sintering conditions.
Article
Biochemistry & Molecular Biology
Olga Mileti, Domenico Mammolenti, Noemi Baldino, Francesca Romana Lupi, Domenico Gabriele
Summary: Recent research on innovative food packaging has focused on using biodegradable materials to reduce the environmental impact caused by conventional plastics. This study explored the use of tannin as an additive to produce potato starch-based films, optimizing its content based on mechanical and microscopic tests. The interaction between tannin and starch was evaluated using rheological measurements, and the properties of the resulting films were assessed. The findings suggest that a tannin fraction of 1.7% (w/w) shows promise for industrial applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Chemistry, Applied
M. N. Muralidharan, K. P. Shinu, A. Seema
CARBOHYDRATE POLYMERS
(2016)
Article
Materials Science, Multidisciplinary
M. N. Muralidharan, S. Mathew, A. Seema, P. Radhakrishnan, Thomas Kurian
MATERIALS CHEMISTRY AND PHYSICS
(2016)
Article
Materials Science, Ceramics
P. P. Deepak, Mariya Parokkaran, K. R. Ranjith, M. N. Muralidharan, Seema Ansari
CERAMICS INTERNATIONAL
(2018)
Article
Engineering, Electrical & Electronic
Suraj Subramanian, Mejo Akkaraparambil Johny, Muralidharan Malamal Neelanchery, Seema Ansari
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2018)
Article
Engineering, Chemical
Pulikkottil Merin, P. Jimmy Joy, M. N. Muralidharan, E. Veena Gopalan, Ansari Seema
Summary: Activated carbon is widely used as electrode material in electrochemical double-layer capacitors. Cashew nutshell-derived activated carbon shows highly porous structure with reasonable surface area and high pore volume, making it a good electrode material with high specific capacitance and excellent retention after thousand cycles of charge/discharge. It is considered as a low-cost and environmentally friendly electrode material for highly efficient supercapacitors.
CHEMICAL ENGINEERING & TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Lakshmi Variar, M. N. Muralidharan, Sunil K. Narayanankutty, Seema Ansari
Summary: In this study, high dielectric constant, flexible CCTO/TPU composites were successfully developed through a simple and cost-effective casting method. The composites showed excellent elongation at break and mechanical strength, making them promising materials for flexible electronics. Additionally, a prototype embedded capacitor with high specific capacitance was fabricated on a copper cladded PCB, demonstrating the potential for practical applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Biomedical
Nimmi Sudarsan, K. Arathy, Linta Antony, R. S. Sudheesh, M. N. Muralidharan, B. Satheesan, Seema Ansari
Summary: The study proposes a computation method using contact thermometry to estimate the geometric center, size, and thermophysical properties of breast tumors, and validates the method through laboratory experiments and comparisons with mammogram results. The estimated tumor parameters closely match with the actual tumor location and size, indicating the potential of the proposed method as a screening tool for breast cancer.
JOURNAL OF MEDICAL DEVICES-TRANSACTIONS OF THE ASME
(2021)
Article
Thermodynamics
K. Arathy, Nimmi Sudarsan, Linta Antony, Seema Ansari, K. A. Malini
Summary: This study investigates the feasibility of using contact thermometry for the early identification of tongue tumors. The thermal and geometrical parameters of the tumors are predicted through contact temperature measurements of the tongue in a closed mouth. A suitable sensor arrangement is developed to obtain the temperature distribution of the tongue, and a computational method is used to estimate tumor parameters using limited temperature data. The results show that the sensor array developed can identify subtle temperature changes caused by tongue tumors.
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Merin Pulikkottil, Henock Antony, Malamal Neelanchery Muralidharan, Elavumkal Veena Gopalan, Seema Ansari
Summary: Biomass derived activated carbon has high porosity and excellent electrochemical properties, making it suitable for energy storage applications as electrode material. Cashew nutshell derived activated carbon exhibits a highly interconnected and honeycomb like microporous structure, facilitating rapid diffusion of electrolyte and improving electrochemical efficiency.
Article
Energy & Fuels
Merin Pulikkottil, Anitta Thomas, Muralidharan Malamal Neelanchery, Veena Gopalan Elavumkal, Seema Ansari
Summary: A flexible solid-state supercapacitor (FSC) with high efficiency and porous electrode material derived from mahogany fruit shell waste is reported. The activated carbon produced from mahogany fruit shell shows a specific capacitance of 267 F g(-1) and outstanding capacitance retention of 97% even after 10,000 charge-discharge cycles. The MSAC-based FSC exhibits a high specific capacitance of 121 F g(-1) and shows wide electrochemical window, flexibility, ease of handling, safety, and high capacitance retention of 78% after 2000 charging-discharging cycles.
Article
Radiology, Nuclear Medicine & Medical Imaging
Linta Antony, K. Arathy, Nimmi Sudarsan, M. N. Muralidharan, Seema Ansari
Summary: This research utilized a low-cost wearable device with thermal sensors to map breast skin temperature and developed a method to estimate tumor parameters. The method was validated through phantom experiments and clinical trials, showing high sensitivity and specificity in breast cancer screening and tumor detection.
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2021)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)