Article
Materials Science, Multidisciplinary
Leticia Raquel de Oliveira, Tulio Alves Rodrigues, Henara Lillian Costa, Washington Martins da Silva Jr
Summary: The development and application of nanolubricants have the potential to reduce friction and wear in automotive systems. This study evaluated the addition of iron oxide nanoparticles to PAO 8 base oil and found that the nanoparticles improved scuffing resistance and reduced wear rates. The lubricants with nanoparticles were able to withstand high loads and maintain a low friction coefficient.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Mechanical
Juozas Padgurskas, Eyioma Izuwah Johns, Irina Radulescu, Alexandru Valentin Radulescu, Raimundas Rukuiz, Valentinas Snitka, Raimondas Kreivaitis, Arturas Kupc, Darius Volskis
Summary: The possibility of producing biogrease using rapeseed oil, beeswax, functional additives, and various carbon nanoparticles as a base oil, thickener, and modifiers were evaluated. Tribological tests and rheological characterization were conducted to investigate the physical and chemical properties of the greases. The results show that the rheological parameters exhibit non-Newtonian behavior with temperature variations. While increasing the proportion of beeswax deteriorates the tribological properties, the functional additives and nanoparticles significantly improve the thermal properties, viscosity, yield stress, and tribological properties, leading to a reduced wear rate.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Energy & Fuels
Yashvir Singh, Nishant Kumar Singh, Abhishek Sharma, Amneesh Singla, Deepak Singh, Erween Abd Rahim
Summary: The combination of vegetable oil and nanoparticles can effectively reduce pollution from synthetic esters disposal and decrease the depletion of petroleum reserves. It was found in the experiment that adding 0.5% zinc oxide nanoparticles can effectively reduce the coefficient of friction and decrease the wear of the pin.
Article
Materials Science, Multidisciplinary
Yu Zhang, Bingxu Wang, Feng Qiu, Hongyu Yang, Gary C. Barber
Summary: The addition of TiC-TiB2 ceramic nanoparticles can decrease the amount of widmanstatten structure, promote the formation of finer pearlite, and refine the grains in annealed carbon steels. In wear tests, the nanoparticles reduce the wear volume loss and enhance the anti-wear performance of carbon steels. This research provides a new method to improve the wear performance of carbon steel components.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Thermodynamics
Suman Dey, Narath Moni Reang, Madhujit Deb, Pankaj Kumar Das
Summary: This study focuses on the combustion and emission characteristics of cerium oxide added palm biodiesel blends in a diesel engine, showing improved brake thermal efficiency and reduced emissions. Friction and wear study revealed that CeO2 added biodiesel blends diluted with lubricant can reduce coefficient of friction and specific wear rate compared to diesel contaminated lubricant.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Polymer Science
Pollyana Grazielle Luz Da Rocha, Matheus Goncalves Leao De Oliveira, Paulo Vitor Franca Lemos, Larissa Alves De Sousa Costa, Lucimar Pacheco Gomes Da Rocha, Adelson Ribeiro De Almeida Junior, Jania Betania Alves Da Silva
Summary: This study aimed to prepare and characterize cellulose nanocrystals as an additive to water-based lubricating fluid. The results showed that cellulose nanocrystals significantly improved the performance of the lubricating fluid by reducing the coefficient of friction and decreasing the wear rate.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Ravikiran Nowduru, Bolla Reddy Bodapati, Pavan Kumar Penumakala, Sai Ram Krishna Malladi, Pawan Kumar Jain, Vadali Venkata Satya Siva Srikanth
Summary: Spheroidal carbon soot particles with heliocentric graphitic layers were prepared from wasted rubber and exhibited excellent performance as lubricant additives, reducing friction and wear. The particles acted as nano-bearings, rolling between contacting surfaces, and showed multi-functional ability by improving viscosity retention at higher temperatures.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Physical
Fei Ma, Sang The Pham, Shanhong Wan, Lingyan Guo, Gewen Yi, Yana Xia, Shaobao Qi, Hongtao Zhu, Thi Dinh Ta
Summary: The study demonstrated that the addition of oxide nanoparticles improved the lubricity and wear resistance of engine oil, with Al2O3 nanoparticles showing superior tribological capability compared to other nanoparticles. The differentials of wearing mechanism, tribofilm, and interface hierarchy were clarified through morphological observation and compositional characterization.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Jose M. Lineira del Rio, Fatima Marino, Enriqueta R. Lopez, David E. P. Goncalves, Jorge H. O. Seabra, Josefa Fernandez
Summary: This work investigates the antifriction and antiwear properties of TiO2 nanoparticles coated with oleic acid as additives in a low viscosity polyalphaolefin base oil. The optimal concentration of nanoadditives was determined through tribological experiments, and the nanolubricants showed lower friction coefficients and reduced wear compared to the base oil. The research also reveals the occurrence of tribofilm, mending, and polishing mechanisms. Additionally, the thermal conductivity of the optimal nanolubricant was measured at different temperatures.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Mechanical
Can Wu, Kai Yang, Ying Chen, Jing Ni, Lidan Yao, Xinglin Li
Summary: This paper presents a comparative study of the tribological and vibration performance of synthesized lithium complex grease containing Carbon black, Fe3O4 and Al2O3 nanoparticles on rolling bearing. The results show that the presence of nanoparticles improves friction and wear behavior, with Al2O3 nanoparticles demonstrating the best tribological performance due to their high hardness, cylindrical shape, and deposition on the worn surface. Additionally, the wettability test indicates that Al2O3 nanoparticles can effectively promote base oil flow on the grease soap fibers, resulting in the most effective bearing vibration suppression.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Mark Gee, Timothy Kamps, Peter Woolliams, John Nunn, Ken Mingard
Summary: This paper presents real-time in situ measurements of the tribological behavior of coated surfaces, aiming to understand the failure mechanisms and improve the wear and friction resistance of coatings. Two different test systems, a microtribometer and a ball on disc tribometer, were used to test DLC and TiN coatings on tool steel substrates. The results showed delamination failure of the DLC coatings in both test systems, and a new rotating scratch test was also introduced.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Raimondas Kreivaitis, Jolanta Treinyte, Arturas Kupcinskas, Milda Gumbyte, Albinas Andriusis
Summary: The study investigates the improvement in wettability and lubricity of water/glycerol base fluid by using the synergy of nanoparticles and a protic ionic liquid. The results show that the combination of nanoparticles and the ionic liquid additive significantly enhances the lubricity and facilitates the formation of a composite tribo-film.
Article
Engineering, Chemical
Kimaya Vyavhare, Richard B. Timmons, Ali Erdemir, Pranesh B. Aswath
Summary: Surface-modified CaCO3 nanoparticles were used to enhance lubricant additive technology in internal combustion engines by reducing and/or replacing additives in engine oil. The nanoparticles exhibited synergistic interaction with ZDDP and DDP, resulting in improved friction and wear performance under boundary lubrication conditions. This study shows the potential of plasma-functionalized CaCO3 nano-additives to reduce harmful P-based additives in automotive lubricants.
Article
Engineering, Chemical
Can Wu, Yijia Xie, Huijun Zhao, Haining Yang, Xinglin Li, Jing Ni
Summary: The influences of hexagonal boron nitride (hBN) and calcium carbonate (CaCO3) nanoparticles on the tribological and bearing vibration properties of polyurea grease (PG) were studied. It was found that the addition of 1 wt% hBN improved the wear and vibration reduction performance of PG, while the simultaneous addition of CaCO3 nanoparticles further enhanced the tribological and vibration reduction performance of PG, attributed to the synergistic effect of CaCO3 and hBN particles. The PG with a composition of 1 wt% hBN + 5 wt% CaCO3 nanoparticles showed the best tribological and vibration suppression performance.
Article
Chemistry, Physical
Can Wu, Shuaishuai Li, Ying Chen, Lidan Yao, Xinglin Li, Jing Ni
Summary: It has been found that using nano additives can significantly improve the tribological properties of greases. In this study, a hard-shelled soft-core composite nano-particles were synthesized and used as a grease additive, resulting in better dispersion and tribological properties.
APPLIED SURFACE SCIENCE
(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)