Article
Materials Science, Ceramics
Faisal Alresheedi
Summary: Resistive random-access memories are attractive for next-generation non-volatile memories due to their simple structure, fast response, and low power consumption. This study fabricated one-dimensional TiO2 nanorods and evaluated their resistive switching characteristics. The nanocomposite device with embedded SnO2 nanoparticles exhibited superior switching performance and additional features of multilevel data storage.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Mingkai Tang, Liyufen Dai, Mingqiang Cheng, Yuan Zhang, Yanghe Wang, Xiangli Zhong, Jinbin Wang, Feng An, Ming Ma, Mingqiang Huang, Changjian Li, Jiangyu Li, Gaokuo Zhong
Summary: This article proposes a synthesis strategy based on high-throughput pulsed laser deposition technology to precisely control the thickness of oxide thin films. With this method, STO thin films with different thicknesses were successfully synthesized, and a transition from unipolar to bipolar resistive switching mode was observed as the film thickness increased. The STO thin film with a thickness of 20.3 nm exhibited excellent conductance modulation properties under the application of electrical pulses as well as significant reliability for emulating various synaptic functions, making it a promising material for artificial neuromorphic computing applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Physics, Applied
Sheng Cheng, Lvkang Shen, Shaodong Cheng, Chunrui Ma, Ming Liu, Tao Zhu
Summary: This work investigates the resistive switching and electrical-control of magnetization in Pt/CoFe2O4/Nb:SrTiO3 heterostructures. The films exhibit a classic bipolar resistive switching effect and good anti-fatigue performance. The study reveals that the interfacial migration of oxygen vacancies plays an important role in modulating the resistive and magnetic properties in CoFe2O4 resistive switching devices.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
He-Chun Zhou, Yan-Ping Jiang, Xin-Gui Tang, Qiu-Xiang Liu, Wen-Hua Li, Zhen-Hua Tang
Summary: This study successfully applied Bi4Ti3O12 (BIT) ferroelectric films to the RS layers of memristors, demonstrating repeatable and stable bipolar resistive switching (RS) characteristics closely related to oxygen vacancies.
Article
Materials Science, Ceramics
Lun-Quan Wang, Wen-Hua Li, Xin-Gui Tang, Xiao-Bin Guo, Qiu-Xiang Liu, Yan-Ping Jiang, Zhen-Hua Tang
Summary: This study successfully fabricated PbZrO3 (PZO) films on a LaNiO3 (LNO)-buffered Si(100) substrate using a sol-gel spin-coating technique, and demonstrated excellent bipolar resistance switching (RS) behavior in the resulting Au/PZO/LNO/Si heterojunction device. The device showed a high/low resistance ratio of 10^2 at bias voltages of +0.2 and -0.2 V, with RS characteristics remaining stable after 100 consecutive cycles of testing. Weibull distribution analysis indicated a uniform and stable high/low-resistance state, and conduction mechanisms were identified as Ohmic conduction and Schottky emission, with the RS phenomenon attributed to modulation of a Schottky-like barrier due to oxygen vacancy migration in the PZO films.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jia-Jin Lu, Xin-Gui Tang, Wen -Min Zhong, Yan-Ping Jiang, Qiu-Xiang Liu
Summary: To solve the problem of information storage, a resistive variable memory of Au/Bi2Ti2O7/NiO/ITO was fabricated and its resistive switching characteristics were studied. The device showed diode-like rectifier characteristics and exhibited good durability and stability under 100 cycles of read-and-write tests. At a reading voltage of 0.44 V, the resistive switching ratio of the device reached 102. Combining XPS O 1s spectrum and further analysis of I-V double logarithmic curve, it was found that the conduction mechanism of the device was mainly related to the ohmic conduction mechanism and the space charge limiting current mechanism, and its resistive switching behavior was related to the migration of oxygen vacancies to change the interface barrier.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Tingting Guo, Huixiang Huang, Xianglin Huang, Ying Wang, Li Duan, Zhuo Xu
Summary: The coexistence of resistive switching and magnetism modulation of Co-doped HfOx samples with different doping concentrations is reported in this study. The influence of Co dopants on resistive switching and magnetism is analyzed experimentally and theoretically. The results show that Co doping can improve the switching performance and the Co-doped HfOx samples exhibit different magnetism properties in different resistance states.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yong Zhang, Ming Liu, Chunrui Ma, Lu Lu, Chuan Yu Han
Summary: The concentration and distribution of oxygen vacancies play a crucial role in the performance of oxide materials. This study presents a strategy to control oxygen vacancy doping and discovers the phenomenon of bipolar resistive switching. By utilizing electrochemical migration and oxygen ion redistribution, the control of oxygen vacancies is achieved.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Engineering, Electrical & Electronic
Yoandris Gonzalez, Azza Hadj Youssef, Rajesh Katoch, Andreas Dorfler, Siavash Asadollahi, Andranik Sarkissian, Andreas Ruediger
Summary: The effect of oxygen deficiency in Hf0.5Zr0.5O2-delta thin films on the switching dynamics and charge transport mechanism of a device was studied. Bipolar resistive switching behavior was observed, and different conduction mechanisms were identified.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Jihyun Kim, Yeon Soo Kim, Hye Ri Jung, William Jo
Summary: Researchers fabricated highly conductive SnO2 thin films through ozone treatment and chlorine-based surface coating, observing exotic cycling bipolar resistive switching phenomena in different ambient conditions.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Alexander Vokhmintsev, Ilya Petrenyov, Robert Kamalov, Ilya Weinstein
Summary: This study explores the properties of Zr/ZrO2/Au memristors based on anodic zirconia layer, showing reliable sustained functional states with quantized conductivity. The resistive switching mechanism in these devices is sensitive to oxygen vacancy migration, with ohmic and space-charge-limited conductivities realized in different resistance states. Effective parameters for creating memristors with multiple resistive states and high resistance ratio are provided.
Article
Physics, Condensed Matter
Wen-Min Zhong, Xin-Gui Tang, Qiu-Xiang Liu, Yan-Ping Jiang, Wen-Hua Li, Jing-Long Yue
Summary: This article investigates the properties of STO ceramic at different temperatures, revealing that the oxygen vacancy concentration increases with temperature, leading to changes in dielectric effect and conductivity.
PHYSICA B-CONDENSED MATTER
(2021)
Review
Nanoscience & Nanotechnology
Hui-Chuan Liu, Si-Ming Zeng, Rui Li, Yan-Ping Jiang, Qiu-Xiang Liu, Xin-Gui Tang
Summary: The study demonstrated bipolar resistive switching and ferroelectricities of Ni0.5Zn0.5Fe2O4 (NZFO) thin films using Au/NZFO/LNO/Si structure. It was found that annealing atmosphere influences the structure and properties of NZFO, with oxygen vacancy and strain stress playing a significant role. The saturation magnetization and remnant polarization values of the samples were affected by the annealing atmosphere, with improved resistive switching property observed in NZFO annealed in nitrogen atmosphere.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Physical
S. P. Swathi, S. Angappane
Summary: Although hafnium oxide-based resistive switching (RS) devices have limitations in low power operations due to high operating voltages and currents, this study demonstrates that adjusting growth temperature and annealing conditions can significantly improve their characteristics. By depositing HfOx films at different temperatures and subjecting them to vacuum annealing, a high density of oxygen vacancies is created. The annealed HfOx film at 450 degrees C exhibits bipolar RS with improved device performance, including lower operating voltages and currents, large ON/OFF ratio, good endurance, and retention capability. The study also identifies the role of oxygen vacancies in the RS behavior and highlights the potential for low-power data storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
Zhiqiang Yu, Jinhao Jia, Xinru Qu, Qingcheng Wang, Wenbo Kang, Baosheng Liu, Qingquan Xiao, Tinghong Gao, Quan Xie
Summary: A facile sol-gel spin coating method was used to synthesize spin-coated ZnO nanofilms on ITO substrates. The resulting W/ZnO/ITO memory cell based on ZnO nanofilms exhibited forming-free and tunable nonvolatile multilevel resistive switching behaviors with a high resistance ratio. The tunable nonvolatile resistive switching behaviors of the memory cell were achieved by modulating the set voltages.
Article
Energy & Fuels
G. John, S. Gopalakrishnan, Abhishek Sharan, M. Navaneethan, Jeganathan Kulandaivel, Nirpendra Singh, P. Justin Jesuraj
Summary: In this research, a heterostructure bifunctional electrocatalyst was prepared using the hydrothermal method, consisting of SnS nano sheets engrafted onto NiCo2O4 nanoneedles suspended on Ni foam. The catalyst showed low overpotentials for oxygen and hydrogen evolution reactions and exhibited good stability in the electrolyte.
Article
Chemistry, Physical
U. Sreevidya, V. Shalini, S. Kavirajan, K. R. Maiyelvaganan, M. Prakash, K. Kamala Bharathi, E. Senthil Kumar, J. Archana, S. Harish, M. Navaneethan
Summary: This study confirms that the incorporation of carbon black can improve the thermoelectric performance of conducting polymers. By mixing carbon black with the polymer, the electrical conductivity and Seebeck coefficient can be increased. The ternary composite with 30 wt% carbon black exhibits the most promising properties, and the enhancement in power factor and figure of merit is attributed to the energy filtering effect and strong non-covalent interactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
A. Selestina, L. Sudha, V. Vijay, N. Karunagaran, M. Navaneethan
Summary: Flexible thermoelectric devices have the potential to generate noiseless, perennial, and widespread electricity from human body temperature energy. SnS, a p-type semiconducting material, is highly regarded for its low thermal conductivity and high Seebeck coefficient. In this study, SnS and SnSSex (x = 0.05, 0.075, and 0.1) samples were synthesized via hydrothermal method and coated on carbon fabric for flexible thermoelectric applications. XRD results confirmed the crystal structure and formation of SnS and Se-doped SnS. HRSEM and HRTEM revealed the distribution of elements and morphology of the materials. Seebeck coefficient and electrical conductivity were measured in the temperature range of 303-373 K. The highest electrical conductivity of 85.5 S/cm was achieved for SnSSe0.075 at 373 K, and the highest power factor of 1.56 mu W/mK(2) was obtained for SnSSe0.1 at 373 K.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
K. Sathiyamoorthy, A. Silambarasan, S. Bharathkumar, J. Archana, M. Navaneethan, S. Harish
Summary: A series of La1-xBixCoO3 perovskite nanostructures were synthesized via sol-gel route and their photocatalytic activity was evaluated using methylene blue (MB) and crystal violet (CV) as model pollutants.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Nanoscience & Nanotechnology
S. Athithya, K. P. Mohamed Jibri, S. Harish, K. Hayakawa, Y. Kubota, H. Ikeda, Y. Hayakawa, M. Navaneethan, J. Archana
Summary: Recently, SnSe-based thermoelectric materials with environment-friendly properties have attracted significant attention. In this study, Al-doped SnSe (Sn1-xAlxSe) specimens were prepared using ball milling and spark plasma sintering. High-resolution transmission electron microscopy analysis confirmed the presence of various crystal defects and dislocations induced by Al doping in the nanostructured (Sn1-xAlxSe) samples. The Sn0.92Al0.08Se samples exhibited lower thermal conductivity (0.63 W/mK at 750 K) compared to pristine SnSe (1.14 W/mK at 750 K), mainly due to the presence of different crystal defects and the excellent anharmonic bonding nature of SnSe. The SAS-2 sample showed the highest electrical conductivity, which correlated well with the low activation energy of 0.20 eV. The minimal Al doping (SAS-2) decoupled the strong interdependency of electrical and thermal transport properties, resulting in a maximum ZT value of 0.18 at 743 K. The Al-doped SnSe (Sn1-xAlxSe) introduced point defects in the sample, providing a new strategy for waste heat recovery.
Article
Chemistry, Multidisciplinary
Seenidurai Athithya, Valparai Surangani Manikandan, Santhana Krishnan Harish, Kuppusamy Silambarasan, Shanmugam Gopalakrishnan, Hiroya Ikeda, Mani Navaneethan, Jayaram Archana
Summary: Ag nanoparticles infused with mesosphere TiO2/reduced graphene oxide (rGO) nanosheet (TiO2/rGO/Ag) hybrid nanostructures were successfully fabricated using solution process synthesis and in-situ growth. The hybrid nanostructures showed improved performance in photovoltaic cells and photocatalytic degradation of pollutants. The plasmonic hybrid nanostructures exhibited a higher power conversion efficiency (PCE) of 7.27% in dye-sensitized solar cells (DSSCs) compared to TiO2-based DSSCs (4.10%). Additionally, the TiO2/rGO/Ag photocatalyst demonstrated effective degradation of methylene blue (MB) dye molecules and mineralization of total organic compounds (TOC) in aqueous solution under sunlight irradiation. The high surface area of the hybrid nanostructures contributed to their enhanced performance.
Article
Materials Science, Multidisciplinary
G. Jagadish Kumar, Ashika Jose, E. P. Jinu, T. T. Saravanan, E. Senthil Kumar, M. Navaneethan, H. Sreemoolanadhan, K. Kamala Bharathi
Summary: We evaluated the Griffiths phase and enhanced magnetic entropy change at low magnetic fields in Bsite disordered perovskite La0.7Sr0.3A0.05Mn0.95O3 (A= Si, Ti) bulk samples. The doping of 5 mol% of Si and Ti at the Mn site led to a decrease in Curie temperature (TC) towards room temperature. Ti-doped La0.7Sr0.3MnO3 showed higher entropy change at room temperature compared to Si-doped La0.7Sr0.3MnO3. The Ti doping in La0.7Sr0.3MnO3 resulted in an increase in magnetic entropy change and a significant reduction in TC towards room temperature, suggesting potential applications in magnetic cooling near room temperature.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Multidisciplinary
S. Athithya, K. P. Mohamed Jibri, S. Harish, K. Hayakawa, Y. Kubota, H. Ikeda, Y. Hayakawa, Y. Inatomi, M. Navaneethan, J. Archana
Summary: The solid solution of SnSe0.75S0.25 has the potential to improve thermoelectric performance through ultra-low thermal conductivity, achieved by introducing disordered atoms of selenium and sulfur. High energy ball milling and spark plasma sintering were used to prepare SnSe0.75S0.25 and Cu-doped SnSe0.75S0.25 compounds. The presence of S in the Se site induced mass fluctuation, resulting in high-frequency phonon scattering and a remarkably low thermal conductivity value at 753 K. Cu dopant was selected to enhance the electrical conductivity and induce nanoprecipitates of Cu2Se inside the grains, further strengthening phonon scattering and lowering the thermal conductivity.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
R. Santhosh, S. Harish, R. Abinaya, S. Ponnusamy, H. Ikeda, J. Archana, M. Navaneethan
Summary: In this study, Ag-deficient Ag2Se was prepared using a hydrothermal method and hot-press densification process, and the effect on thermoelectric properties was investigated. The research found that increasing the Ag content led to an increase in the calculated density of states effective mass (m*), resulting in an enhanced maximum zT of 0.43 at 393 K for Ag1.99Se. Furthermore, the complex nanostructures including grain boundaries, nanograins, and lattice distortions in Ag2-xSe contributed to reduced thermal conductivity (kappa) in the range of 0.9-1.1 W m(-1) K-1 at 303 K. The aim was to improve the thermoelectric performance of Ag2-xSe for room temperature applications.
Article
Chemistry, Multidisciplinary
S. Athithya, S. Harish, H. Ikeda, M. Navaneethan, J. Archana
Summary: In this study, a new scheme consisting of ZnO nanospindles decorated on TiO2 mesospheres as a stable photoanode was reported, and the kinetics of photon-induced charge carrier migration/transfer were explored. Different proportions of ZnO spindles decorated on mesosphere TiO2 were synthesized and used as photoanodes in DSSCs. The DSSC device with the TZC-0.05 photoanode showed excellent photovoltaic performance and long-term stability, with the best response exhibited at 35 degrees Celsius.
Article
Chemistry, Physical
S. Gopalakrishnan, Mihir Ranjan Sahoo, Avijeet Ray, Nirpendra Singh, S. Harish, E. Senthil Kumar, M. Navaneethan
Summary: We have developed a heterostructure photocathode consisting of nickel cobalt disulphide layers (NiCo2S4 NS) over a p-Si nanowire (Si NW) surface for solar-assisted water reduction. The optimized Si NW/NiCo2S4 NS heterostructure exhibits enhanced water reduction activity under simulated solar irradiation. The catalytic performance of the heterostructure is attributed to the electrocatalyst properties of NiCo2S4 and efficient charge separation and migration processes at the photocathode/electrolyte interface. Our findings demonstrate the potential of this heterostructure scheme for designing high-performance Si photocathodes for solar water reduction.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
