Article
Materials Science, Multidisciplinary
Chongchong Tang, Hao Shi, Adrian Jianu, Alfons Weisenburger, Geanta Victor, Mirco Grosse, Georg Muller, Hans Jurgen Seifert, Martin Steinbruck
Summary: The study revealed different oxidation mechanisms of high-entropy alloys in oxygen and steam atmospheres at high temperatures, with Y addition improving the oxide scale properties but Zr addition leading to a deterioration in oxidation resistance.
Article
Materials Science, Multidisciplinary
Ziqiang Dong, Ankang Sun, Shuang Yang, Xiaodong Yu, Hao Yuan, Zihan Wang, Luchen Deng, Jinxia Song, Dinggang Wang, Yongwang Kang
Summary: A machine learning integrated workflow was used to guide the design of Cr, Al-containing five-element high-entropy alloys (HEAs) with enhanced high-temperature oxidation resistance. ML directed the design of HEAs with a chemical composition of Fe, Cr, Al, Ni, and Cu for improved oxidation resistance. The oxidation behavior of AlxCrCuFeNi (x = 0, 0.25, 0.5, 1) HEAs at 1100 degrees C in air was systematically studied and the oxidation mechanism was elucidated. Experimental validation agreed well with the ML prediction, showing that ML can be a powerful tool for designing alloys with optimized oxidation resistance.
Review
Materials Science, Multidisciplinary
Bronislava Gorr, Steven Schellert, Franz Mueller, Hans-Juergen Christ, Alexander Kauffmann, Martin Heilmaier
Summary: Refractory high entropy alloys (RHEA) are emerging as promising high-temperature materials for structural applications due to their attractive mechanical properties, but concerns have been raised about their oxidation behavior, with some exhibiting good protectiveness attributed to the formation of protective oxides.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Physical
Ahmad Ostovari Moghaddam, Mikhail Sudarikov, Nataliya Shaburova, Dmitry Zherebtsov, Vladimir Zhivulin, Ibrokhimi Ashurali Solizoda, Andrey Starikov, Sergey Veselkov, Olga Samoilova, Evgeny Trofimov
Summary: This study compared the oxidation behavior of tungsten-containing high entropy alloys (HEAs) with medium entropy alloy (MEA) at high temperatures, and found that the oxidation resistance of tungsten-containing HEAs was poor. However, the W-Mo-Ta-Al-Cr HEA exhibited the best oxidation resistance among all the tungsten-containing alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Coatings & Films
Rui Yang, Xin Guo, Huijun Yang, Junwei Qiao
Summary: Boronization can enhance the wear resistance of high-entropy alloys (HEAs), especially at high temperatures. In this study, Fe40Mn20Cr20Ni20 HEAs were boronized at 900 degrees C for 6 hours and their tribological properties were tested from 20 to 600 degrees C. The results showed that boronized alloys exhibited improved wear resistance, with lower coefficients of friction and wear rates compared to hot-rolled alloys. The wear mechanisms varied with temperature, with abrasive and adhesive wears predominant at lower temperatures and oxidation and abrasive wears predominant at higher temperatures. Boronization improved the wear resistance of HEAs in high temperature through the formation of B2O3 and the thermal stability of the boronized layer.
SURFACE & COATINGS TECHNOLOGY
(2023)
Review
Materials Science, Multidisciplinary
B. Cantor
Summary: Multicomponent high-entropy Cantor alloys, discovered in the late 1970s, occupy a vast region of multi-component phase space and exhibit excellent mechanical properties due to high configurational entropy. The complexity of local atomic configurations and associated lattice strains in these alloys contributes to their unique characteristics and potential for further enhancement and optimization.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Materials Science, Ceramics
Ana C. Feltrin, Farid Akhtar
Summary: The processing and oxidation behavior of multicomponent ultra-high temperature metal diboride in dual-phase and single-phase microstructures is investigated. The dual-phase diboride undergoes phase transformation to a single-phase high-entropy diboride after thermal annealing. Different types of oxide layers are formed on the material's surface at different temperatures. The high-entropy single-phase diboride shows superior performance, making it suitable for high-temperature applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
N. Yurchenko, E. Panina, S. Zherebtsov, N. Stepanov
Summary: In this study, we investigated the oxidation behavior of refractory high-entropy alloys with different compositions. It was found that increasing the Al/Ti ratio reduced the mass gain but resulted in oxide scale spallation. The studied alloys demonstrated better oxidation resistance than the current high-entropy alloys at 800 degrees C. Analysis of the alloy with near-parabolic oxidation kinetics revealed the formation of an external oxide layer primarily composed of TiO2 and an internal reaction zone with O-rich products and TiN.
Article
Materials Science, Coatings & Films
Wenjie Zhang, Yanfei Qi, Lixia Zhang, Yunhui Tang, Chao Qi, Qi Shen, Yutian Ma, Bo Wang
Summary: This study focuses on the high temperature oxidation resistance of tungsten based high entropy alloy. The experiment results show that the entropy increases as the number of selected elements increases, leading to the formation of amorphous structure and improved corrosion resistance and oxidation resistance in the alloys. The increase of mixing entropy reduces the Gibbs free energy of alloys and makes them more chemically stable, while elements like Cr, Al, Ti and Zr promote the formation of dense oxide passive layer.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Rui Yang, Huijun Yang, Min Zhang, Xiaohui Shi, Junwei Qiao
Summary: This study investigates the improvement of high-temperature oxidation resistance and lubrication properties of RHEAs by preparing aluminized coatings on their surfaces.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Shuaidan Lu, Xiaoxiao Li, Xiaoyu Liang, Wenting Shao, Wei Yang, Jian Chen
Summary: The study shows that increasing Al content reduces the mass change of passivating scale formation and prolongs the passivation duration of the alloy, benefiting the formation of AlNbO4 and AlTaO4, which enhance the oxidation resistance of the alloy. Fracture of scales generally occurs at a mass gain of around 15 mg center dot cm(-2) and leads to a transformation to linear oxidation.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Xiaoyi Li, Xujie Gao, Hongguo Lu, Chengcheng Shi, Nana Guo, Fengshi Yin, Guangming Zhu
Summary: By synergistic alloying with Mo and Nb, the AlCrFe2Ni2-based high entropy alloy showed increased volume fraction of the BCC phase and formation of a novel Laves phase with HCP structure. The solidification behavior of the alloys varied considerably with the increase of Mo and Nb content, affecting the alloy's structure and performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Yuhang Du, Deyu Ding, Limin Lai, Siming Xiao, Ning Guo, Bo Song, Shengfeng Guo
Summary: The addition of reactive element Y can significantly improve the high-temperature oxidation resistance of CrMoTaTi high-entropy alloys, lowering the critical concentration of Cr required for the formation of Cr2O3 on the alloy surface. The Y-bearing RHEAs exhibited good oxidation resistance even when subjected to oxidation at 1000 degrees C for 100 hours, suggesting a positive role of reactive elements in enhancing the oxidation resistance of RHEAs.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Review
Multidisciplinary Sciences
Bhargavi Rani Anne, Shajahan Shaik, Masaki Tanaka, Anindya Basu
Summary: High entropy alloys (HEAs) have entered high-temperature applications as potential candidates due to their unique core effects like high entropy effect, sluggish diffusion effect, lattice distortion, and cocktail effect. This has sparked significant interest in the field of materials, with current research focused on understanding the oxidation behavior of HEAs and comparing them with conventional alloys in terms of crystal structures.
SN APPLIED SCIENCES
(2021)
Article
Metallurgy & Metallurgical Engineering
Rajiv Kumar, R. K. Singh Raman, S. R. Bakshi, V. S. Raja, S. Parida
Summary: The oxidation behavior of nanocrystalline and microcrystalline Fe-20Cr-3Al alloys at high temperatures was investigated in this study. The nanocrystalline alloy exhibited superior oxidation resistance compared to the microcrystalline alloy, which can be attributed to the oxidation kinetics and nature of the oxide formed. The higher grain boundary area in the nanocrystalline alloy enhanced the metal diffusivity and resulted in a more protective oxide layer. Additionally, both alloys showed better oxidation resistance at 800 degrees C than at 700 degrees C, contrary to common steels.
OXIDATION OF METALS
(2022)
Article
Materials Science, Ceramics
Reza Sayyad, Mohammad Ghambari, Touradj Ebadzadeh, Amir Hossein Pakseresht, Ehsan Ghasali
CERAMICS INTERNATIONAL
(2020)
Article
Materials Science, Ceramics
A. H. Pakseresht, A. Kimiayi, M. Alizadeh, H. Nuranian, A. Faeghinia
CERAMICS INTERNATIONAL
(2020)
Article
Materials Science, Multidisciplinary
A. H. Pakseresht, S. M. Mousavi, M. Saremi, E. Ghasali, H. Rajaei
Summary: This study investigated the microstructural and mechanical features of YSZ-alumina composites, utilizing Spark Plasma Sintering to prepare dense samples. The research found that YSZ-alumina coatings exhibit better properties compared to conventional counterparts. By analyzing the interaction between YSZ and alumina particles, new insights into enhancing coating properties were provided.
MATERIALS AT HIGH TEMPERATURES
(2021)
Article
Engineering, Chemical
Aliasghar Abuchenari, Fariborz Sharifianjazi, Amirhosein Pakseresht, Mohadeseh Pudineh, Amirhossein Esmaeilkhanian
Summary: In this study, mechanical alloying process was used to prepare the nanocrystalline (Fe85Ni15)(97)Al-3 alloy through ball mill method. The structure, mechanical properties, and magnetic behavior of the alloy at different milling times were investigated using X-ray analysis, VSM, and SEM measurements. It was found that increasing milling time led to higher lattice parameter, reduced grain size, and improved saturation magnetization and coercivity.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Fariborz Sharifianjazi, Amirhossein Esmaeilkhanian, Mostafa Moradi, Amirhosein Pakseresht, Mehdi Shahedi Asl, Hassan Karimi-Maleh, Ho Won Jang, Mohammadreza Shokouhimehr, Rajender S. Varma
Summary: Naturally derived nano-hydroxyapatite (PHA) was prepared from waste pigeon bones using ball milling, with an average particle size of 50-250 nm. Sintering the nanoparticles at 1050 degrees C resulted in a Ca/P ratio of 1.7 and improved hardness and compressive strength. Alkaline phosphatase analysis and MTT assay showed significant enhancement in osteoblast cell activity and proliferation compared to synthetic HAp.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Electrochemistry
Martin Rozman, Andraz Mavric, Gregor Kravanja, Matjaz Valant, Amirhossein Pakseresht
Summary: This study presents a low-cost, flexible, and durable electrochromic tape that uses common kitchen-grade aluminum foil as electrodes. The tape is capable of showing two color states and has excellent durability due to its inverted sandwich architecture without the need for a transparent counter electrode. It can be used in various applications, including color changing clothes and adaptive camouflage.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Milan Parchoviansky, Ivana Parchovianska, Ondrej Hanzel, Zuzana Netriova, Amirhossein Pakseresht
Summary: LC-YSZ composites with different weight fractions of YSZ were prepared and their phase composition, microstructure, mechanical performance, and thermal behavior were investigated. The results showed that the composites had high relative density, fine-grained microstructure, improved hardness and fracture toughness. The composites also exhibited relatively low thermal conductivity, indicating their potential for TBC applications.
Article
Chemistry, Analytical
Martin Rozman, Zala Stukovnik, Ajda Susnik, Amirhossein Pakseresht, Matej Hocevar, Damjana Drobne, Urban Bren
Summary: Humans are often exposed to environmental hepatotoxins, which can lead to liver failure. Biosensors, with their high sensitivity and specificity, convenience, time-saving, low cost, and extremely low detection limit, are considered the best option for hepatotoxin detection. This study investigated the suitability of HepG2 cells for biosensor use through different adhesion methods on stainless steel surfaces. Cytotoxicity assays and microscopy techniques were used to examine the viability of HepG2 cells on the surface. A simple cell-based electrochemical biosensor was developed using electrochemical impedance spectroscopy. The results showed that HepG2 cells can adhere to the metal surface and could be used for detecting hepatotoxic samples.
Article
Chemistry, Physical
Ivana Parchovianska, Milan Parchoviansky, Beata Pecusova, Ondrej Hanzel, Amirhossein Pakseresht
Summary: This work focuses on the fabrication of lanthanum cerate (La2Ce2O7, LC) powders via two chemical routes and investigates their suitability for thermal barrier coating applications. The results show that the LC powders have high phase stability and their spheroidization efficiency is influenced by powder size and morphology.
Review
Polymer Science
Andressa Trentin, Amirhossein Pakseresht, Alicia Duran, Yolanda Castro, Dusan Galusek
Summary: This paper reviews the application of electrochemical techniques in tracking the anti-corrosion properties of polymeric coatings. It also explores the advances in accelerated corrosion testing and the electrochemical characterization of coatings. Additionally, it summarizes the challenges and potential applications of theoretical approaches.
Review
Materials Science, Multidisciplinary
Amirhossein Pakseresht, Fariborz Sharifianjazi, Amirhossein Esmaeilkhanian, Leila Bazli, Mehdi Reisi Nafchi, Milad Bazli, Kamalan Kirubaharan
Summary: This article provides an overview of the factors influencing the durability of thermal barrier coatings and discusses approaches to mitigate the adverse effects of degradation mechanisms. It also reviews new ceramic materials as potential candidates for thermal barrier coating applications, considering their thermal properties and corrosion resistance characteristics.
MATERIALS & DESIGN
(2022)
Article
Polymer Science
Ashok Raja Chandrasekar, Emilia Merino, Amirhossein Pakseresht, Dusan Galusek, Alicia Duran, Yolanda Castro
Summary: In this study, 58S bioactive glasses were synthesized using the sol-gel method, and several polyols were used to improve the sol stability and control the degradation of AZ31B magnesium alloys. The results showed that the use of polyethylene glycol coating could efficiently control the release of H2 gas, maintain pH balance, and observed significant apatite deposition in the liquid.
Article
Materials Science, Multidisciplinary
Ivana Parchovianska, Milan Parchoviansky, Aleksandra Nowicka, Anna Prnova, Peter Svancarek, Amirhossein Pakseresht
Summary: In this study, composite bulk ceramics were fabricated using La2Ce2O7/40 wt% YSZ (LC40Z) mixed powders for high-performance thermal barrier coatings (TBCs). The effect of sintering temperature on the chemical reactivity and microstructure evolution of LC and YSZ was investigated. Solid-solution reactions occurred between YSZ and LC during hot-pressing, resulting in the formation of a new phase. The mechanical properties of LC40Z ceramics can be tailored by changing the sintering temperature during hot-pressing.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Omid Sharifahmadian, Amirhossein Pakseresht, Saeed Mirzaei, Marek Elias, Dusan Galusek
Summary: The hydrophobicity of fluorine-doped diamond-like carbon (DLC) films was studied by introducing fluorine to the film through the plasma-enhanced chemical vapor deposition (PECVD) process. X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy analysis confirmed the presence of fluorocarbon compounds and a decrease in the sp3/sp2 hybridization ratio of carbon atoms in the fluorine-doped DLC films. Nano-scratch and nanoindentation tests showed a significant relationship between fluorine content and mechanical properties of the DLC films. With a moderate concentration of fluorine (19.2 at.%), the fluorine-doped DLC films exhibited a friction coefficient of 0.2 and were considered suitable for surface engineering of self-cleaning glasses.
DIAMOND AND RELATED MATERIALS
(2023)
Review
Polymer Science
Kamalan Kirubaharan Amirtharaj Mosas, Ashok Raja Chandrasekar, Arish Dasan, Amirhossein Pakseresht, Dugan Galusek
Summary: Metallic materials used for implants can have issues such as poor biocompatibility, corrosion, and inflammatory response. Coating modification is an effective way to improve implant performance. This review discusses the applications of ceramics, polymers, and metallic materials in implants, as well as the trends in coatings for implants.
Article
Chemistry, Physical
Jhilik Roy, Shubham Roy, Dhananjoy Mondal, Neelanjana Bag, Jaba Roy Chowdhury, Saheli Ghosh, Souravi Bardhan, Rajib Mondal, Ruma Basu, Sukhen Das
Summary: This study presents the synthesis and characterization of a gadolinium-doped bismuth ferrite piezo catalyst for the degradation of carcinogenic organic dyes and eradication of pathogenic bacteria. The piezo catalyst exhibits high polarization and demonstrates exceptional degradation efficiency under soft ultrasound stimulation. It also shows remarkable antibacterial activity and can be easily extracted using a magnetic field, making it a promising candidate for water treatment to prevent secondary pollution.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Sanggon Kim, Orisson Gomes, Ali Riaz, Mourad Roudjane, Paulo N. Lisboa-Filho, Augusto Batagin-Neto, Younes Messaddeq, Yves De Koninck
Summary: Surface-enhanced Raman spectroscopy (SERS) is a powerful tool in biophysics, bioanalytical chemistry, and biomedicine for monitoring extracellular chemical activity. However, the limited choice of SERS nanotags has hindered its practical application. This study repurposes fluorescent chemosensors as SERS nanotags, using a plasmon-induced reaction to immobilize them onto plasmonic nanostructures. The results demonstrate the successful immobilization and functionality of xanthene-based chemosensors as SERS chemosensors.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
A. Fernandez Garcia, M. Garcia-Lechuga, F. Agullo Rueda, J. Rubio Zuazo, M. Manso Silvan
Summary: In this work, a method for fabricating WTe2 thin-films and controlling their conductivity using femtosecond laser post processing is presented. The synthesis of WTe2 films, characterization of their surface conductivity gradient and the demonstration of conductivity modulation using laser writing are described.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Zhaoqing Kang, Xin Li, Le Zhou, Dan Li, Jiangping Wang
Summary: Microencapsulated phase change materials (MicroPCMs) with polyethylene wax (PE-W) as nucleating agent were prepared using emulsion polymerization. The addition of PE-W significantly reduced the degree of supercooling and increased the enthalpy associated with heterogeneous nucleation in MicroPCMs. The thermal resistance of the MicroPCMs encapsulated by P(MMA-co-AMA) was greatly improved. The MicroPCMs demonstrated exceptional thermal storage and protective characteristics.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Chenliang Li, Kezhen Lv, Xiaomin Ding, Liyang Feng, Xiaolong Lv, Decai Ma
Summary: This study investigates the effect of surface termination composition and disorder on the electronic and contact properties of Janus Ti3C2FO materials, and provides new insight into the tuning of contact properties in MXenes/TMD heterostructures.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Asha Rajiv, Aruna Kapse, Varun Kumar Singh, Manender Singh Chauhan, Aishwary Awasthi, Prabhakar Singh
Summary: Surface modification of inorganic metal oxide nanoparticles with organic biopolymers has endowed these particles with multifunctional properties, making them versatile in the field of nanomedicine. In this study, magnesium oxide and chitosan modified magnesium oxide were synthesized using a green method. The antibacterial and anticancer activities of the synthesized hybrid nanomaterial were attributed to the generated reactive oxygen species. Chitosan modified magnesium oxide hybrid nanomaterial demonstrated appreciable efficacy against bacterial strains and showed significant anticancer potential against human breast cancer cells. Cytotoxicity assays on human fibroblast cells revealed high cell viability rates for both magnesium oxide and chitosan modified magnesium oxide hybrid nanomaterial. These findings suggest that chitosan modified magnesium oxide hybrid nanomaterial has promising applications in the biomedical field.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Lin Tao, Jingkai Wang, Qiuju Qin, Bingxian Chu, Pin Gao, Jiaqi Qiu, Qin Li, Xuechi Du, Lihui Dong, Bin Li
Summary: This study focuses on the modification of transition metal catalysts for the selective catalytic reduction of NO by CO. It investigates the effect of different anions on the modification of CO-SCR catalysts. The results show that the use of nitrate ions as a regulator for LDH support leads to a high NO conversion rate, surpassing the use of sulfate ions. The study also highlights the importance of anion modulation in controlling the valence state of loaded copper species. In situ DRIFTS analysis reveals the reaction mechanisms at different temperatures. Overall, this work provides new insights for the valence modulation of copper and the modification of LDH materials in CO-SCR applications.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Fan Xiao, Ming Cao, Yingbo Chen
Summary: In this study, a continuous and uniform ultra-thin polyamide (PA) membrane, ranging from 10 to 20 nm, was successfully synthesized by utilizing a UiO-66-(OH)2 n-hexane dispersion as a transition layer. The presence of the transition layer improved interface stability and facilitated bidirectional diffusion-contact reaction between the monomers, resulting in superior thinness and uniformity of the PA active layers.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Ashwini B. Rohom, Priyanka U. Londhe, Jeong In Han, Nandu B. Chaure
Summary: This study describes the synthesis and characterization of a ternary nanocomposite electrode for supercapacitors. The electrode, made of tin oxide/reduced graphene oxide wrapped with poly (3,4-ethylenedioxythiophene)-poly-(styrenesulfonate), exhibits excellent electrochemical properties and high cycling stability.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Jiayao Zhang, Danni Xue, Huan Liu, Zhao Wei, Chenjie Gu, Shuwen Zeng, Junhui Jiang, Tao Jiang, Xingfei Zhou, Kerong Wu
Summary: This study investigates the size-dependent enhancement of charge transfer resonance in semiconductors by adjusting the size of red phosphorus. The nano-sized red phosphorus achieves a three-fold enhancement in surface enhanced Raman scattering (SERS) intensity compared to nanosheets, making it a potential tool for accurate and efficient cancer marker diagnostics.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Bouhadjar Boukoussa, Khoukha Rachida Cherdouane, Rajaa Zegai, Adel Mokhtar, Mohammed Hachemaoui, Ismail Issam, Jibran Iqbal, Shashikant P. Patole, Fatima Zohra Zeggai, Rachida Hamacha, Mohamed Abboud
Summary: This work focuses on the preparation of inexpensive composite materials based on activated carbon-containing metallic nanoparticles MNPs (M = Cu, Ag, Fe). Different samples were tested as catalysts for the catalytic reduction of organic pollutants in the presence of NaBH4. The AC-Cu material exhibited good dispersion of CuNPs and showed the highest efficiency among the tested catalysts.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Changxing Yang, Guxia Wang, Qingyan Bai, Dan Li, Shengwei Guo
Summary: This study designed a simple and efficient graphene-based nanolubricant, which improved the lubrication performance of steel ball friction pairs through a three-step process. It has potential practical applications in the field of lubrication.
SURFACES AND INTERFACES
(2024)
