Article
Materials Science, Coatings & Films
Leszek Latka, Miroslaw Szala, Monika Nowakowska, Mariusz Walczak, Tomasz Kielczawa, Pawel Sokolowski
Summary: This paper discusses the influence of 40 wt% TiO2 addition to Al2O3 and the selection of plasma spray parameters on the morphology, microstructure, microhardness and adhesion of coatings. The tribological behavior and cavitation erosion performance of the coatings were evaluated. The study found that increasing the torch scan speed and decreasing the spraying distance improved the densification and mechanical properties of the coatings, leading to enhanced cavitation erosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Rahul Verma, Swati Sharma, Biswajyoti Mukherjee, Pushpender Singh, Aminul Islam, Anup Kumar Keshri
Summary: This study investigates the use of graphene nanoplatelets (GNPs) as reinforcement in a ceramic matrix. The results show that the addition of a low concentration of GNPs can significantly improve the mechanical and lubricative properties of the coatings.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Multidisciplinary Sciences
Marcin Staszuk, Daniel Pakula, Lukasz Reimann, Malgorzata Musztyfaga-Staszuk, Robert Socha, Tomasz Tanski
Summary: This study investigates the corrosion resistance and tribological properties of ultra-light magnesium alloys through the application of Ti/Al2O3 + TiO2 and Ti + TiO2/Al2O3 + TiO2 coatings obtained via a hybrid PVD and ALD process. The results show that the hybrid coatings exhibit improved corrosion resistance and tribological properties compared to uncoated substrates.
SCIENTIFIC REPORTS
(2022)
Article
Automation & Control Systems
Junyi Xiao, Jiajing Pan, Huaizhi Guo, Mingli Lv
Summary: Deposition characteristics of Al2O3-40%TiO2 plasma spraying on different substrates were investigated in this study using numerical and experimental methods. The results show that the highest temperature and equivalent stress of the particles after collision occurred on the 304 stainless steel substrate, while the lowest values were observed on the 7075 aluminium alloy substrate. The order of the equivalent stresses of the substrates corresponds to the order of their static yield strengths. The diffusion of O element and Mg during the plasma spraying process was also observed.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Fatma Sezgi Eraslan, Ridvan Gecu
Summary: This study optimized the chemical composition of wear- and corrosion-resistant Al2O3-TiO2 composite coatings. The results showed that increasing TiO2 content increased coating thickness, and 2-layered structures had lower wear rates at low TiO2 content while 4-layered structures had higher wear resistance at high TiO2 content.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Deepak Kumar, Qasim Murtaza, R. S. Walia, Pushpendra Singh
Summary: In this study, three coatings were deposited using the thermally flame spray process and their wear behavior under high temperature conditions was examined. The results showed that the wear rate decreased with increasing temperature for all coatings except for the Al2O3 coating at 400 degrees C. The friction coefficient of the coatings also decreased with increasing temperature. The Al2O3-40%TiO2 coating demonstrated the highest wear resistance and lowest friction coefficient due to its low hardness and high adhesion properties.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2022)
Article
Materials Science, Multidisciplinary
Zhang Kaicheng, Zhou Zehua, Deng Yong, Wang Guangyu, Wang Zehua, Wu Lintao, Yang Guangheng
Summary: An organic-inorganic hybrid sealing agent was developed and used for coating protection. The hybrid agent significantly reduces coating porosity and enhances corrosion resistance and anti-biofouling properties.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
(2022)
Article
Materials Science, Ceramics
Fatma Sezgi Eraslan, Irem Cemre Turu, Mucahid Ozcan, Burak Birol, Ridvan Gecu
Summary: The effects of layer number and sintering temperature on the microstructure, wear, and corrosion properties of Al2O3-TiO2 multilayer coatings were investigated. The corrosion rate decreased with increasing layer number, but the sensitivity to corrosion varied. The 4-layer coating sintered at 1000 degrees C achieved the highest wear strength and corrosion resistance.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Giovanni Bolelli, Daniel Steduto, Jarkko Kiilakoski, Tommi Varis, Luca Lusvarghi, Petri Vuoristo
Summary: Plasma sprayed Cr2O3 is commonly used for wear protection in industrial components. This study investigates how alloying with other oxides can alter its properties. It was found that the addition of TiO2 and ZrO2 to Cr2O3 coatings resulted in lower indentation hardness but higher toughness, impacting sliding wear resistance and abrasion differently.
Article
Materials Science, Multidisciplinary
Ziyu Wei, Sheng Hong, Zheng Wei, Ning Hu, Guobing Ying, Yuping Wu
Summary: In this study, WC-CoCr coating and Al2O3-TiO2 coating were prepared using HVOF spraying and APS, respectively. Their long-term corrosion resistances in simulated seawater environment were investigated. The results showed that the Al2O3-TiO2 coating exhibited more stable corrosion performance compared to the WC-CoCr coating.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Engineering, Mechanical
Yuling Lu, Yuxing Peng, Zhiyuan Shi
Summary: Laser remelting can improve the tribological properties of plasma sprayed Al2O3-40%TiO2 coating, increasing hardness and reducing the coefficient of friction and wear rate.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Zi-ang Jin, Jian-long Ma, Li-na Zhu, Hai-dou Wang, Guo-lu Li, Ming Liu
Summary: The study examined Al2O3-13wt% TiO2 coatings prepared by high-efficiency supersonic plasma spraying and atmospheric plasma spraying, with HESP coatings showing better quality and fewer defects. Both types of coatings exhibited decreased friction coefficients and increased wear volumes under dry sliding conditions. The wear mechanism of HESP coatings involved laminar cracking, peeling off, and adhesive wear.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Materials Science, Multidisciplinary
Hongjie Wu, Suiyuan Chen, Chenyi Zhang, Jing Liang, Changsheng Liu, Mei Wang
Summary: The paper introduces a layered 50Cr(6)Ni(2)/Stellite X-40 composite material prepared using laser cladding technology for repairing fretting damage on key parts. The composite material exhibits good wear resistance and corrosion resistance, meeting the needs of remanufacturing short stress path rolling mills.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Yan Zhou, Lifeng Xu, Haizhong Zheng, Dongsheng Wang
Summary: An Al2O3-13 wt% TiO2 composite ceramic coating was prepared on the TiAl alloy surface by plasma spraying and laser remelting combined technique. After laser remelting, the coating showed improved morphology, microstructure, and performance. The thermal shock resistance of the coating was mainly affected by changes in structure and failure modes.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Chemistry, Physical
X. H. Zhang, J. L. Xu, J. M. Luo, Z. Y. Hu, J. Huang, Y. C. Ma
Summary: In this study, Al2O3 ceramic coatings were prepared on sintered NdFeB magnets using cathodic plasma electrolytic deposition (CPED) method. The coatings were analyzed for their surface morphology, composition, corrosion resistance, and magnetic properties. The results show that the coatings mainly consist of γ-Al2O3 and α-Al2O3 phases and exhibit excellent thermal shock resistance and corrosion resistance under hydrothermal conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Noman Nawaz, Nor Kartini Abu Bakar, Wan Jeffrey Basirun, Md Shalauddin, Salmah Binti Karman, Suriani Binti Ibrahim, Habibun Nabi Muhammad Ekramul Mahmud
Summary: In this study, novel molecularly imprinted polymer nanocomposite films were developed for detecting porcine double-stranded deoxyribonucleic acid (dsDNA) in food samples. The nanocomposite films showed excellent binding capacity, recognition selectivity, and reusability, making them suitable for porcine identification.
Review
Materials Science, Ceramics
Bahman Nasiri-Tabrizi, Wan Jefrey Basirun, Chai Hong Yeong, Win Min Thein
Summary: The bioceramic market is expected to grow at a CAGR of about 7% within 2022-2027. Hydroxyapatite (HA) is recommended for the development of the third generation of bioceramics due to its osteoconduction, osteoinduction, and osteogenesis properties. Synthetic HA is currently limited due to mechanical and morphological issues, but cationic doping has shown significant benefits in improving the mechanical properties of bioceramic implants. This review focuses on doping HA with various cations and exploring their potential applications in bone regeneration.
CERAMICS INTERNATIONAL
(2023)
Review
Energy & Fuels
Wan Jefrey Basirun, Syed Tawab Shah, Md. Shalauddin, Shamima Akhter, Nazzatush Shimar Jamaludin, Adeeb Hayyan
Summary: The recycling of sodium borohydride is a major challenge for the hydrogen economy. Mechano-chemical, thermo-chemical, and electrochemical methods are reported for recycling sodium metaborate into sodium borohydride. Electrochemical behavior of borohydride and metaborate in alkaline solutions is described. Challenges, suggestions, and future outlook of electro-reduction for the recycling of metaborate into borohydride are highlighted.
Article
Energy & Fuels
Maan Hayyan, Adeeb Hayyan, Asyraf Danial M. Hafizi, Wan Jeffrey Basirun, Andrew T. H. Yeow, M. Zulhaziman M. Salleh, Hens Saputra, Jehad Saleh, Khaled H. Alkandari, Mohd Ali Hashim, Mohammed A. Alsaadi
Summary: This study explores the physicochemical properties of phosphonium-based deep eutectic solvents (DESs) and their potential as high-performance electrolytes in metal-air batteries. The study investigates the temperature-dependent properties of DESs, including freezing point, density, viscosity, surface tension, and conductivity. The electrochemical characteristics of a Zn-air battery with DES electrolyte, such as cell voltage, power density, and current limit, are also studied. The research highlights the dependence of the electrochemical and physicochemical profiles of phosphonium-based DESs on the salt-to-hydrogen bond donor molar ratio.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Electrochemistry
Md. Shalauddin, Shamima Akhter, Wan Jeffrey Basirun, Vannajan Sanghiran Lee, Ab Rahman Marlinda, Syed Rahin Ahmed, Amin Reza Rajabzadeh, Seshasai Srinivasan
Summary: In this study, a biomolecule-free electrochemical sensing method for paracetamol detection was developed using bimetallic iron-magnesium metal-organic frameworks and black phosphorus nanosheets. The synthesized materials were characterized by various techniques and showed high thermal stability and surface area. The electrochemical study demonstrated that the nanocomposite of the bimetallic metal-organic framework and black phosphorus nanosheets exhibited significantly enhanced electric signal compared to the individual components.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Fariza Abdul Rahman, Wan Jefrey Basirun, Mohd Rafie Johan, Nadiah Ghazali
Summary: This study investigates the use of environmentally friendly substitute coating additive, particulate and tubular polyaniline (PANI) in the polyvinyl butyral (PVB) coating, as a replacement for toxic chromates. The PANIs were analyzed using TEM, FT-IR, and BET surface area analysis. Electrochemical impedance spectroscopy (EIS) and Tafel polarization analyses were performed to evaluate the coating performance, and it was found that the higher surface area of tubular PANI effectively inhibits mild steel corrosion, with the lowest corrosion rate of (5.730 +/- 0.819) x 10-4 mm/year compared to particulate PANI in the PVB coating.
Article
Materials Science, Multidisciplinary
Bahman Nasiri-Tabrizi, Chai Hong Yeong, Win Min Thein, Wan Jefrey Basirun
Summary: A comparative structural refinement of nanocrystalline HA was conducted among mechano-synthesis (MS), ultrasonic-assisted precipitation (UP), biogenic-based process (BP), and commercial grade (CG). The results showed that MS HA holds great promise as an effective medical strategy for treating bone cavities.
Review
Food Science & Technology
Sharifah Shahira Putra, Wan Jefrey Basirun, Amal A. M. Elgharbawy, Maan Hayyan, Waleed Al Abdulmonem, Abdullah S. M. Aljohani, Adeeb Hayyan
Summary: 3-MCPD is a common food contaminant in processed oils formed during the deodorization step of edible oil refining process. It has been detected in various food products and can cause kidney and testicular damage. This review provides an overview of its properties, occurrence, precursors, formation mechanism, toxicity, quantification methods, and mitigation strategies, highlighting the applicability, efficiency, and issues encountered during analysis. It elucidates the significance of 3-MCPDs and their food safety implications.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Engineering, Chemical
Amal A. M. Elgharbawy, Sharifah Shahira Syed Putra, Huma Warsi Khan, Nor Azrini Nadiha Azmi, Muhamad Shirwan Abdullah Sani, Nazurah Ab Llah, Adeeb Hayyan, Jegalakshimi Jewaratnam, Wan Jefrey Basirun
Summary: This research provides insights into the efficacy of a newly formed hydrophobic deep eutectic solvent (DES) based on menthol and fatty acids. The menthol:decanoic acid (1:1) combination exhibited improved thermal stability, strong catalytic activity, and reusability for up to four cycles. The hydrophobic DES showed better fatty acid conversion in ester synthesis compared to hexane. This study demonstrates promising applications of hydrophobic DESs in non-aqueous organic reactions.
Article
Energy & Fuels
Khalid M. Abed, Adeeb Hayyan, Hanee F. Hizaddin, Wan Jefrey Basirun, Mohd Ali Hashim
Summary: The physical properties of deep eutectic solvents (DESs) prepared from TMAC and LA were investigated in the temperature range of 303.15 K to 373.15 K. Viscosity experiments showed that the VFT model provided the best fit. The optimized conditions for soap removal from biodiesel using DESs and AC were a 1:1 volume ratio of DES to biodiesel, a 1:4 molar ratio of DES, a mixing speed of 150 rpm, and an extraction time of 6 minutes. The addition of AC into the DES improved purification efficiency and extraction yields.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Analytical
Elisa Rasouli, Wan Jefrey Basirun, Mohd Rafie Johan, Majid Rezayi, Mohammad Reza Mahmoudian, Daniel Puiu Poenar
Summary: This paper presents a label-free biosensor for detecting HPV-16 using screen-printed carbon electrodes coated with Fe3O4-Au core-shell nanoparticles. Thiolated ssDNA probe HPV DNA sequences were immobilized on the modified electrode surfaces and hybridization events were monitored using cyclic voltammetry and differential pulse voltammetry. The biosensor showed good performance with a limit of detection of 0.1 nM and a sensitivity of 2.4 μA/nM at a probe DNA concentration of 5 μM.
SENSING AND BIO-SENSING RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Sharifah Shahira Syed Putra, Wan Jefrey Basirun, Adeeb Hayyan, Amal A. M. Elgharbawy
Summary: This study presents an efficient enzymatic technique for removing 3-MCPD from extra virgin olive oil using Candida rugosa lipase in the presence of choline chloride, fructose-based natural deep eutectic solvent, and nanocellulose extracted from almond shells. The validity of the method was confirmed by gas chromatography mass spectrometry. Under optimized conditions, the enzymatic hydrolysis removed 79.8% of 3-MCPD. This technique has significant implications for producing high-quality oils free from 3-MCPD.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Adeeb Hayyan, Wan Jefrey Basirun, Muhammad Zulhaziman Mat Salleh, Mohamad Hamdi Zainal-Abidin, Waleed Al Abdulmonem, Rana Abdullah Alghamdi, Laila Alhussain, Abdullah S. M. Aljohani, M. Y. Zulkifli, Boey Min-Wei, Jehad Saleh, Fathiah M. Zuki, Mohamed E. S. Mirghani
Summary: This study first used imidazole for esterification of FFA in acidic oil and successfully produced palmitic acid imidazole. Under the optimal conditions, the FFA content in mixed oil was significantly reduced, offering a promising and eco-friendly pathway for industrial applications.
CATALYSIS COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Khalid M. Abed, Adeeb Hayyan, Hanee F. Hizaddin, Mohd Ali Hashim, Yee-Sern Ng, Wan Jefrey Basirun
Summary: The present study investigated the removal of soap from crude biodiesel using a new technique called DES based ELM/AC. The results showed that the DES-based ELM/AC technique had a superior soap removal efficiency of 97.61%, compared to adsorption and DES-based ELM methods.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Applied
Ming Yee Yong, Wan Jefrey Basirun, Norazilawati Muhamad Sarih, Md. Shalauddin, Siang Yin Lee, Desmond Teck-Chye Ang
Summary: In this study, novel rubber-integrated palm oil-based alkyd resins were synthesized by reacting liquid epoxidized natural rubber (LENR50) with palm oil, glycerol, diacids, and alcoholyzed glycerol. The integration of LENR50 into the alkyd chain was achieved through the reaction between its epoxide or hydroxyl groups with COOH of diacids during polycondensation. The introduction of LENR50 shortened the curing time and improved some film properties of the coatings.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
