Article
Materials Science, Multidisciplinary
Sandeep Sharma, Rahul Gupta, Tarun Nanda, O. P. Pandey
Summary: This study successfully fabricated high temperature wear-resistant LM30/sillimanite composites, optimizing the performance by adjusting particle size ratios and reinforcement levels. The composites exhibited superior hardness, wear rate, friction coefficient, and thermal expansion coefficient compared to the base alloy under high temperature and pressure conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Composites
Wei Wu, Zijian Tang, Hui Zhao, Xiaolei Li, Robert K. Y. Li
Summary: Surface-functionalized hexagonal boron nitride (h-BN) improves dispersion and interfacial interaction, resulting in reduced friction coefficient and wear rate. The presence of hyperbranched polysiloxane (HBPSi) forms a compact debris-forming film, reducing direct contact between friction pairs. Additionally, the high conductivity of HBPSi-BN alleviates abrasive wear by dissipating friction heat and reducing plastic deformation.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Textiles
N. Rajini, K. Mayandi, Manoj M. Prabhakar, Suchart Siengchin, Nadir Ayrilmis, C. Bennet, S. O. Ismail
Summary: This study investigated the tribological behavior of natural fiber-reinforced polyester composites using CP fiber and polyester as materials. The composites were fabricated and tested for wear performance, showing an increase in specific wear rate with higher loads and a non-linear decrease in friction coefficient with increasing contact pressure and decreasing sliding velocity. Morphological analysis was conducted using a scanning electron microscope on the worn specimens.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Materials Science, Multidisciplinary
Vikas Yadav, Sarbjit Singh, Neeru Chaudhary, Mohinder Pal Garg, Shubham Sharma, Amit Kumar, Changhe Li, Elsayed Mohamed Tag Eldin
Summary: Natural fibre composites have gained popularity as an alternative to conventional polymer composites due to environmental concerns. This study investigates the feasibility of developing a novel tribo-material by reinforcing biopolymer with easily accessible and inexpensive plant fibres. The results show that the incorporation of natural fibres improves the tribological properties of the polymer matrix.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Textiles
G. Rajeshkumar
Summary: This study investigated the tribological performance of Phoenix sp. fiber-reinforced epoxy composites, indicating that the presence of fibers improved the friction performance of the epoxy resin, with the optimal fiber length and volume fraction being 20 mm and 40%, respectively.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Engineering, Mechanical
Moustafa Mahmoud Yousry Zaghloul, Karen Steel, Martin Veidt, Michael T. Heitzmann
Summary: This research evaluates and compares the impact of different material types on the tribological characteristics of Polyamide 6 composites, and finds that glass fiber-reinforced Polyamide 6 exhibits better friction and wear performance under high-pressure velocity factors.
TRIBOLOGY INTERNATIONAL
(2024)
Article
Materials Science, Characterization & Testing
Aswani Kumar Bandaru, Paul M. Weaver, Ronan M. O' Higgins
Summary: The study found that hygrothermal ageing reduces the wear resistance of glass/PTFE composites, with crystallinity decreasing as water uptake increases. The inclusion of a metal mesh improves the wear resistance of non-hybrid composites under the same ageing conditions.
Article
Materials Science, Multidisciplinary
Liu Jian, Lu Fei, He Tiantian, Pang Xianjuan, Zhang Yongzhen
Summary: This paper focuses on the abnormal tribological damage and fluctuation of tribological performance in self-lubricating composites used in heavy load spherical plain bearings in the aerospace field. A reciprocating block on ring tribological test was conducted using the Nomex/PTFE fiber reinforced composite to investigate its wear evolution and tribological performance. The results indicate that, under high load conditions (above 90 MPa or 180 kN), the influence of oscillating frequency on material wear is significantly greater than that of load. Friction temperature is a key factor affecting the wear behavior of the material. High friction temperature weakens the friction and wear performance, leading to material failure in a short time. Thermal fatigue is the main tribological damage mode under high load and high frequency conditions, resulting in local wear.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Polymer Science
Corina Birleanu, Marius Pustan, Mircea Cioaza, Paul Bere, Glad Contiu, Mircea Cristian Dudescu, Daniel Filip
Summary: The tribomechanical properties of a customized GFRP/epoxy composite were investigated through friction experiments against different engineering materials under dry conditions. The obtained results provide valuable data on the tribo-mechanical behavior of this engineering material.
Article
Engineering, Mechanical
Yun Zhang, Gang Lei, Kaiguang Luo, Pinghu Chen, Charlie Kong, Hailiang Yu
Summary: Al0.5CoCrFeNi high-entropy alloy particles reinforced aluminum matrix composites (HEAps/AMCs) with various reinforcement additions were fabricated and their wear properties were investigated. It was found that a moderate range of reinforcement exhibited lower coefficient of friction and wear rate compared to the matrix alloy. The HEA particles hindered plastic deformation and improved the crack resistance of the composites through tight interface and interaction with dislocations.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Lei Sun, Ming Cao, Fan Xiao, Jiaopeng Xu, Yingbo Chen
Summary: The use of POSS functionalized graphene oxide in the fabrication of PA6/reduced GO-POSS nanocomposites results in a significant decrease in friction coefficient and wear rate, with improved interface bonding strength.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Jie Li, Jialing Gu, Yanxiong Zhang, Zhiyong Wang, Guohong Zhang
Summary: This study used laser cladding process to prepare the cladding layer of copper-based friction materials and validated its friction performance in wet clutches through experiments and analysis. The results showed that the friction layer prepared by laser cladding technology had a compact structure and good wear resistance, which significantly reduced the wear rate of the friction pairs.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Characterization & Testing
Senthilkumar Thangarajan Sivasankaran, Senthil Kumar Shanmugakani, Vignesh Kumar Vijayakumar, Rathinavel Subbiah, Selvarajan Lakshmanan, Nagaprasad Nagaraj
Summary: This research explores the impact of reinforcement particles on the mechanical and wear properties of AA4032 hybrid and unhybrid metal matrix composites (MMCs). The addition of TiC and h-BN particles improves the wear resistance of the composites and reduces the coefficient of friction and wear rate.
JOURNAL OF TESTING AND EVALUATION
(2023)
Article
Metallurgy & Metallurgical Engineering
Vineet Kumar, Sunil Mohan, Gaurav Gautam, Anita Mohan
Summary: This study investigates the tribological characteristics of Zn-Al alloy and ZrB2 particle reinforced composites under dry conditions. The results show that the addition of ZrB2 particles significantly improves the tribological properties of the materials.
INTERNATIONAL JOURNAL OF METALCASTING
(2023)
Article
Polymer Science
Bayan Kurbanova, Kazybek Aimaganbetov, Kanat Ospanov, Kairat Abdrakhmanov, Nurkhat Zhakiyev, Bauyrzhan Rakhadilov, Zhuldyz Sagdoldina, Nurlan Almas
Summary: The mechanical and tribological characteristics of PEEK sheets were improved by electron beam irradiation. The lowest specific wear rate was achieved by PEEK sheets irradiated at a speed of 0.8 m/min with a total dose of 200 kGy. The improvement in microhardness was observed in samples exposed to an electron beam at a speed of 9 m/min for 30 runs with a total dose of 300 kGy.
Article
Engineering, Chemical
Anthony Chidi Ezika, Emmanuel Rotimi Sadiku, Gbolahan Joseph Adekoya, Yskandar Hamam, Suprakas Sinha Ray
Summary: This study calculated the elastic modulus and electrical conductivity of a MX/PPy nanocomposite electrode and optimized them using the response surface methodology. The results showed that the suggested finite element model could accurately predict the electrical conductivity and elastic modulus of the MX/PPy electrodes, making them viable for metal-ion batteries.
POLYMER ENGINEERING AND SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Neeraj Kumar, Rashi Gusain, Sadanand Pandey, Suprakas Sinha Ray
Summary: This review comprehensively analyzes the use of hydrogel nanocomposites for water treatment, focusing on adsorbent and photocatalysis techniques. It discusses the structure, classification, and synthesis methods of hydrogels, as well as their incorporation with functional nanoparticles. The review also critically examines the structure-property relationships of hydrogel nanocomposites, considering factors such as swelling characteristics, mechanical properties, and stimuli-responsiveness.
ADVANCED MATERIALS INTERFACES
(2023)
Review
Engineering, Chemical
Ritima Banerjee, Amanuel Gebrekrstos, Jonathan Tersur Orasugh, Suprakas Sinha Ray
Summary: This paper presents recent developments in electrically conducting nanocarbon-containing polymer composite foams for advanced applications and introduces the knowledge gaps and potential solutions. Various materials have been used for electromagnetic interference shielding, energy storage, and piezoresistive applications. Among these, nanocarbon-containing polymer composite foams score high because of their superior performance and lightweight. By offering a holistic overview of the fundamentals of electromagnetic interference shielding, piezoresistivity, the processing of polymer nanocomposites and foams, and the critical aspects related to the development of electrically conducting polymer nanocomposite foams for advanced applications, this paper provides insight into future advances in this area. Furthermore, the selective localization of nanofiller particles in polymer blends and the consequent effects on the foamability and electrical properties of foams, an area seldom discussed in the literature, is critically reviewed in the present work. In summary, this paper offers new insights into the design of advanced conductive nanocarbon-containing polymer composite foams for applications in electromagnetic interference shielding, energy storage, and piezoresistive sensors.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Jonathan Tersur Orasugh, Valentine Saasa, Suprakas Sinha Ray, Bonex Mwakikunga
Summary: A series of graphene oxide@cellulose nanocrystal (GO@CNC) nanoparticles were synthesized using a modified hummers process. The nanoparticles exhibited crystallite grains with different sizes and -OH & -COOH functionalities on their surfaces. The GO@CNC nanoparticles showed significantly improved sensing characteristics towards acetone compared to virgin GO nanoplatelets, with GO3@CNC3 NPs showing the highest response at 5 ppm and a detection limit of 5 ppm, making them a viable candidate for diabetes breath testing.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Polymer Science
Tanyaradzwa S. Muzata, Amanuel Gebrekrstos, Jonathan Tersur Orasugh, Suprakas Sinha Ray
Summary: Polymers are extensively used materials in everyday life due to their competitive price, ease of processability, and rust resistance. However, consistent exposure to UV radiation can cause degradation and discoloration of polymeric materials. To improve the UV-shielding properties, various polymer composites containing inorganic and organic nanoparticles (NPs) have been developed, but challenges such as degradation and agglomeration need to be addressed.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Karabo Innocent Matumba, Mpho Phillip Motloung, Vincent Ojijo, Suprakas Sinha Ray, Emmanuel Rotimi Sadiku
Summary: This study investigated the effect of Joncryl concentration on the properties of PLA/PCL and PLA/PEG blends. The addition of Joncryl influenced the properties of both blends, with reduced droplet size and improved compatibility observed in PLA/PCL blends, and the presence of a co-continuous morphology in PLA/PEG blends at certain Joncryl loadings. Joncryl addition also decreased the crystallinity of PCL and PEG in the blends. The thermal stabilities and mechanical properties of the blends were shown to be dependent on the Joncryl concentration.
Review
Chemistry, Multidisciplinary
Rashi Gusain, Neeraj Kumar, Suprakas Sinha Ray
Summary: This review article focuses on the research progress of three-dimensional (3D) printing technology in wastewater treatment and energy storage, specifically on 3D-printed hydrogels and aerogels. Different 3D printing methods such as direct ink writing, digital light processing, and fused filament fabrication are discussed, highlighting the important results in adsorption, photocatalysis, membrane filtration, and desalination for wastewater treatment, as well as supercapacitors and batteries for energy storage applications. The article concludes with the future opportunities of 3D-printed hydrogels and aerogels in wastewater treatment and energy storage. Overall, the fundamental knowledge and critical assessment of 3D-printed hydrogels and aerogels in water treatment and energy storage provide guidance for future studies in smart materials and waste management for sustainability.
Review
Polymer Science
Amanuel Gebrekrstos, Suprakas Sinha Ray
Summary: The assimilation of highly conductive nanofillers in immiscible polymer blends has shown great potential for various applications. Recent advancements in controlling the location of nanoparticles at the interface of immiscible binary blends have enhanced mechanical and electrical performance of the composites. This review critically inspects the possible mechanism for locating the nanofillers at the interface and their influence on the electrical conductivity and mechanical properties.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mpho Phillip Motloung, Tladi Gideon Mofokeng, Jayita Bandyopadhyay, Suprakas Sinha Ray
Summary: The impact of incorporating chitin in PBS/HAP composites on their mechanical and thermal properties, as well as soil degradation characteristics, was investigated. Chitin was found to improve the soil degradation characteristics and melt strength of the composites, while decreasing their elongation at break.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Review
Chemistry, Physical
Lesego Tabea Temane, Jonathan Tersur Orasugh, Suprakas Sinha Ray
Summary: Poly(lactic acid) or polylactide (PLA) is a potential replacement for petrochemically made plastics, but its flammability and propensity to flow in a fire have limited its use. Research has focused on developing new flame-retardants for PLA, with a recent emphasis on two-dimensional nanosystems and their composites. The addition of 2D nanoparticles reduces the flammability of PLA by forming a barrier layer that blocks the transfer of volatile gases, oxygen, and heat.
Review
Chemistry, Multidisciplinary
Ritima Banerjee, Suprakas Sinha Ray
Summary: This review provides an overview of the role of rheology in polymer processing, emphasizing its importance in the development, characterization, and assessment of polymeric material morphologies. It also offers ideas for improving the processabilities of these materials in advanced processing operations.
Article
Energy & Fuels
Neeraj Kumar, Rashi Gusain, Mike Masukume, Suprakas Sinha Ray
Article
Energy & Fuels
Neeraj Kumar, Rashi Gusain, Mike Masukume, Suprakas Sinha Ray
Summary: The occurrence of pharmaceutical pollutants in the environment is a growing concern and effective strategies for their elimination are needed. Photocatalysis has been recommended as an efficient approach, and in this study, a boron-oxide-decorated nitrogen-rich reduced graphene oxide (B2O3/N-rGO) nanocomposite is synthesized and characterized for its photocatalytic performance toward ciprofloxacin (CIP) degradation. The results show that the B2O3/N-rGO nanocomposite demonstrates significantly enhanced photocatalytic activity compared to N-rGO and pure B2O3, making it a promising material for environmental remediation and energy-related applications.
Article
Biochemistry & Molecular Biology
Orielia Pria Egambaram, Sreejarani Kesavan Pillai, Suprakas Sinha Ray, Marlize Goosen, Antonio Vassallo
Summary: Organic UV filters generate harmful by-products and undergo photoreactive degradation, posing a threat to sunscreen users. Inorganic UV filters like TiO2 and ZnO have photocatalytic properties and can generate reactive oxygen species, making them not entirely safe options. A study investigated the influence of different metal ions on the photochemical properties of layered double hydroxides (LDH) and their potential in photoprotection. The results showed that Zn-Ti and Zn-Al LDH with intermediate band gaps offered lower photo-reactivity and promising UV protection in cosmetic formulations.
Review
Chemistry, Multidisciplinary
Adrija Ghosh, Jonathan Tersur Orasugh, Suprakas Sinha Ray, Dipankar Chattopadhyay
Summary: Water is vital for human life and its pollution caused by human activities affects humanity. Therefore, caution is necessary when using novel materials and technologies for wastewater treatment. Graphdiyne (GDY), a promising 2D nanomaterial, shows potential for applications in oil-water separation, organic-pollutant removal, heavy-metal adsorption, and desalination. This review provides insights into the structure, properties, synthesis methods of GDY, and its various applications in desalination and wastewater treatment.
