Article
Polymer Science
Iririana Martinez, Ricardo Santillan, Iliana Fuentes Camargo, Julia Liliana Rodriguez, J. Alberto Andraca Adame, Hugo Martinez Gutierrez
Summary: Composite material films of pyridine-based polymer and metal oxides were successfully deposited by spin coating method for environmental remediation. The morphology of the composite materials was found to be dependent on the chemical nature of the oxide. The composites exhibited high performance in photocatalytic degradation reactions.
Article
Nanoscience & Nanotechnology
Jing Zhou, Vikram Thapar, Yu Chen, Bi-Xian Wu, Gordon S. W. Craig, Paul F. Nealey, Su-Mi Hur, Tzu-Hsuan Chang, Shisheng Xiong
Summary: The study investigates the self-aligned assembly of a triblock copolymer on neutral graphene nanoribbons through solvent vapor annealing, showing long-range ordered alignment and overcoming the lithography resolution restriction required for traditional DSA.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Qinfu Zhao, Igor Zhitomirsky
Summary: This study describes for the first time the fabrication of composite ferroelectric PVDF-HFP-ferrimagnetic NiFe2O4 films by EPD, using natural biosurfactants to modify the surface of materials. It provides a platform for the development of composite films combining the ferrimagnetic properties of spinel ferrites with the multifunctional properties of ferroelectric polymers.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Gkreti-Maria Manesi, Ioannis Moutsios, Dimitrios Moschovas, Georgios Papadopoulos, Christos Ntaras, Martin Rosenthal, Loic Vidal, Georgiy G. Ageev, Dimitri A. Ivanov, Apostolos Avgeropoulos
Summary: This study proposes the use of anionic polymerization to synthesize living poly(dimethylsiloxane) or PDMS-Li+ and poly(2-vinylpyridine) or P2VP-Li+ homopolymers, and the subsequent covalent joining of the two blocks using chlorosilane chemistry to form PDMS-b-P2VP copolymers. The synthesis of well-defined materials with different molecular weights and volume fraction ratios was achieved, and the thermal transitions and morphological characteristics of the copolymers were studied. Additionally, a post-polymerization chemical modification reaction to achieve quaternization of the nitrogen atom in some of the P2VP monomeric units was reported.
Review
Polymer Science
Dahye Lee, Jinwoo Kim, Kang Hee Ku, Sheng Li, Jaeman J. Shin, Bumjoon J. Kim
Summary: This article presents the preparation strategies, properties, and applications of multicompartment particles based on PVP-containing BCPs. These particles possess unique morphologies and functionalities, including responsiveness and tunable physical and optical properties.
Article
Chemistry, Multidisciplinary
Dominika Marcin Behunova, George Gallios, Vladimir Girman, Hristo Kolev, Maria Kanuchova, Silvia Dolinska, Miroslava Vaclavikova
Summary: The study demonstrated the deposition of graphene oxide on a stainless steel substrate and its potential environmental applications. Various characterization techniques were used to assess the structure, morphology, and properties of the material, showing that the morphology and stability of the structures are related to the pre-treatment of the stainless steel substrate. This approach offers a new route for the facile fabrication of advanced electrode coatings with potential environmental applications.
Article
Chemistry, Multidisciplinary
Yuwei Liu, Xiaona Cui, Yong-Ill Lee, Hong-Guo Liu
Summary: This study systematically investigated the self-assembly behavior of polystyrene-block-poly(2-vinylpyridine) at the liquid/liquid interface. Different primary morphologies of aggregates were obtained depending on the molecular structure of the block copolymers and the amount of chloroauric acid. The findings provide valuable insights into the self-assembly behavior of block copolymers at interfaces and offer a facile approach for fabricating functional structures.
Article
Chemistry, Physical
Polyxeni P. Angelopoulou, Logan T. Kearney, Jong K. Keum, Liam Collins, Rajeev Kumar, Georgios Sakellariou, Rigoberto C. Advincula, Jimmy W. Mays, Kunlun Hong
Summary: This study reports the synthesis, characterization, and self-assembly of poly(styrene)-block-poly(2-vinylpyridine N-oxide) (PS-b-P2VPNO) and poly(styrene)-block-poly(4-vinylpyridine N-oxide) (PS-b-P4VPNO) block copolymers. These block copolymers exhibit enhanced segregation and can form microphase-separated domains with very small feature sizes (<10 nm) useful for next-generation lithography.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Lukasz Pawlowski, Michal Bartmanski, Aleksandra Mielewczyk-Gryn, Andrzej Zielinski
Summary: The study investigated the electrophoretic deposition of chitosan/poly(4-vinylpyridine) coatings on titanium substrates decorated with silver nanoparticles. The results showed that the best coatings were formed at 10V voltage and 0.1% (w/w) P4VP content, indicating potential application of these pH-sensitive coatings in surface modification of titanium implants.
Article
Materials Science, Multidisciplinary
Xinyu Li, Mengmeng Xu, Rongchun Zhang, Youqing Yu, Yuanyuan Pei, Qianqian Yu, Kunkun Liu, Yiliu Liu, Linge Wang, Tao Wen
Summary: This study reports the unexpected photoluminescence (PL) of poly[(methylenelactide)-co-(2-vinylpyridine)] (PLVPs) random copolymers, which exhibit intense blue emission and high quantum yield. The luminescence originates from the interactions between pyridine and lactone rings, and is influenced by the concentration of the copolymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Samantha Brixi, Chloe Dindault, Benjamin King, Halynne R. Lamontagne, Adam J. Shuhendler, Sufal Swaraj, Benoit H. Lessard
Summary: This study reports the stabilization of the n-type performance of an organic semiconductor by blending it with poly(2-vinylpyridine) (P2VP). Even a small amount of P2VP can provide immediate stabilization effect, making it an ideal candidate material for large-scale applications.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Analytical
Daixiong Zhang, Qing Xiang
Summary: A Sn-Bi film was successfully fabricated via electrophoretic deposition of nano powders, with the film composition controlled by a coefficient of proportionality between mass ratio in the deposited film and suspension. Films with different mass ratios were designed for codetection of Cd(II) and Pb(II), with the best determination ability seen in the film with a mass ratio of 0.75.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yoonsu Park, Hyeri Kang, Wooseok Jeong, Hyungbin Son, Don-Hyung Ha
Summary: The study found that the charge control and restoration of interparticle interactions for aged colloidal nanoparticles can be achieved through simple ligand engineering, and this influence is more significant in electrophoretic deposition than the effects of aging.
Article
Polymer Science
Walter W. Young, Hiromu Tabuchi, Ryo Iguchi, Takashi Konishi, Koji Fukao, Reika Katsumata
Summary: In broadband dielectric spectroscopy experiments, introducing an air gap reduces DC conductivity, enabling the study of low-frequency relaxations. A slower process than the alpha-relaxation process is observed in P2VP, and its mechanism is examined in two heterogeneous systems.
Article
Chemistry, Physical
Bishnu Choudhary, Shahid Anwar
Summary: In this study, La2-xSmxCe2O7 ceramics were synthesized using the glycine-nitrate combustion method, and the effects of Sm doping on their phase structure, microstructure, and electrical properties were investigated. La1.95Sm0.05Ce2O7 exhibited the highest ionic conductivity of 3.7 x 10(-3) S cm(-1) at 700 degrees C in a moist environment. Thin-film deposition of La1.95Sm0.05Ce2O7 via electrophoretic deposition showed high power density at 700 and 650 degrees C.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Automation & Control Systems
Farhad Molaiekiya, Ali Aliakbari Khoei, Maryam Aramesh, Stephen C. Veldhuis
Summary: The study evaluates the surface integrity of Inconel 718 machined with SiAlON cutting tools at high speeds, showing potentially negative surface effects.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Qianxi He, Jose M. DePaiva, Joern Kohlscheen, Ben D. Beake, Stephen C. Veldhuis
Summary: The study investigated AlTiN coatings with different Al/Ti ratios and found that the Al60Ti40 coating exhibited the longest tool life during finish turning of stainless steel 304, due to its favorable combination of tribological and micro-mechanical properties.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Engineering, Mechanical
Rohan Kumar Barooah, Jose Mario Paiva, A. F. M. Arif, Sushant Rawal, Bipasha Bose, S. C. Veldhuis
Summary: This study focuses on evaluating the coating performance of 10 different PVD coatings for automotive engine grade Al-12Si die-cast alloy, with a novel thin multilayered TiAlN coating showing the best wear resistance. A common wear pattern was identified for thin hard coatings on form taps for high silicon content aluminum alloy, with coating fractures along the edges of the lobe in a form tap revealed during detailed investigation of wear mechanisms.
Article
Materials Science, Multidisciplinary
B. D. Beake, L. Bergdoll, L. Isern, J. L. Endrino, G. S. Fox-Rabinovich, S. C. Veldhuis
Summary: The study evaluated the fracture resistance of hard nano-multilayered coatings under repetitive dynamic high strain rate loading, showing that the coatings are more susceptible to impact-induced damage under higher loads. The dominant fracture behavior of the coatings includes ring cracking, radial cracking, and chipping at lower loads, while at higher loads, break-up of the carbide substrate becomes more extensive.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Chemistry, Physical
Guerman Fox-Rabinovitch, Goulnara Dosbaeva, Anatoly Kovalev, Iosif Gershman, Kenji Yamamoto, Edinei Locks, Jose Paiva, Egor Konovalov, Stephen Veldhuis
Summary: This study outlines the optimization of a new generation of bi-nano-multilayered coatings for the machining of direct aged Inconel 718 alloy. The results show that the newly developed coating C with higher amounts of Si and Y exhibits significant improvements in tool life and tribological performance compared to the previous coatings A and B.
Article
Chemistry, Multidisciplinary
Xinqian Liu, Stephen Veldhuis, Ritch Mathews, Igor Zhitomirsky
Summary: This study explores the application of carbenoxolone in electrophoretic deposition of various carbon materials, PTFE, and composite films. Carbenoxolone, a versatile biosurfactant with amphiphilic properties, is found to adsorb on materials, facilitate charging and dispersion, and exhibit film-forming qualities. The research demonstrates the protective capabilities of PTFE films against metal corrosion and highlights the importance of analyzing microstructure and porosity for films prepared under different conditions.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Industrial
Baoqin Deng, Qianxi He, Jose M. DePaiva, Stephen C. Veldhuis
Summary: The geometries of cutting tools are crucial for tool performance, material flow, cutting force, and cutting temperature distribution. This paper investigates a novel method that combines experimental and simulation results to design tool edge geometry. By observing the changes in tool geometry during machining with white light interferometry, a new tool wear geometry model is proposed. Further modeling of temperature and stress distribution using Finite Element Analysis (FEA) confirms that the newly designed tool can achieve a lower wear rate, thereby extending tool life.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Qianxi He, Jose M. DePaiva, Joern Kohlscheen, Stephen C. Veldhuis
Summary: This paper investigates the performance of AlTiN coatings with different Al/Ti ratios in high-speed machining of stainless steel and explores the effect of coolant on cutting conditions. The results show that under wet cutting conditions, all coated inserts exhibit significantly improved tool life.
Article
Engineering, Mechanical
Uttkarsh Patel, Sushant Rawal, Bipasha Bose, A. F. M. Arif, Stephen Veldhuis
Summary: This research work focuses on developing and comparing in-house Ti-based coatings with commercial coatings for cermet tools used in high-speed dry turning of Austenitic stainless steel. By evaluating and comparing the performance of commercial coatings on cermet tools based on micro-mechanical properties, tool performance, and surface roughness, the study found that in-house Ti-based coatings with similar compositions to commercial coatings performed better, depending on their micro-mechanical properties. Research results indicate that the compositions of various coatings significantly influence the micromechanical properties and tool life.
Article
Chemistry, Multidisciplinary
Anatoly Kovalev, Vladimir O. Vakhrushev, Ben D. Beake, Egor P. Konovalov, Dmitry L. Wainstein, Stanislav A. Dmitrievskii, German S. Fox-Rabinovich, Stephen Veldhuis
Summary: The micromechanism of low-cycle fatigue of mono- and multilayer PVD coatings on cutting tools was investigated, showing that the multilayer nanolaminate (TiAlCrSiY)N/(TiAlCr)N has higher fracture toughness compared to the single layer coating.
Article
Engineering, Manufacturing
A. Hemmati, J. M. DePaiva, S. C. Veldhuis
Summary: This study investigates the influence of Al content on the cutting performance of Ti-Al-N coating during high-speed machining of 316 stainless steels. The results show that the Ti0.40Al0.60N coating has a longer tool life and better cutting performance compared to the Ti0.27Al0.73N coating, due to its ability to constantly rebuild the friction layer in response to external stimuli.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Materials Science, Multidisciplinary
A. Hemmati, M. Abdoos, S. C. Veldhuis
Summary: The addition of Ta to TiAlN coatings can significantly improve their mechanical properties, thermal stability, oxidation resistance, and high-speed machining performance.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Xinqian Liu, Stephen Veldhuis, Ritch Mathews, Igor Zhitomirsky
Summary: This study aims to develop polymer coatings containing inorganic flame-retardant materials (FRMs) and replace toxic halogenated FRMs. A green strategy using a dip-coating method is reported to fabricate poly(ethyl methacrylate) (PEMA)-FRM composite coatings, with the use of water-isopropanol co-solvent as a replacement for toxic solvents. The ability to form concentrated solutions of high-molecular-mass PEMA and disperse FRM particles in such solutions is crucial for dip-coating technique. Huntite, halloysite, and hydrotalcite are utilized as advanced FRMs for PEMA-FRM coatings. The microstructure and composition of PEMA-FRM coatings are analyzed using FTIR, XRD, SEM, and TGA data. PEMA and PEMA-FRM coatings provide effective corrosion protection for stainless steel. The ability to form laminates with different layers facilitates the fabrication of composite coatings with enhanced properties.
JOURNAL OF COMPOSITES SCIENCE
(2022)
Article
Chemistry, Physical
Qinfu Zhao, Xinqian Liu, Stephen Veldhuis, Igor Zhitomirsky
Summary: Composite polymer-ceramic films are prepared by electrophoretic deposition, with co-deposition of ferrimagnetic CuFe2O4 and ferroelectric PVDF-HFP. CuFe2O4 exhibits good pseudocapacitive properties, making it a suitable material for magnetocapacitive devices. The microstructure and composition of PVDF-HFP-CuFe2O4 films are analyzed, showing ferrimagnetic properties.
COLLOID AND POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Monica C. R. Guimaraes, Joao B. Fogagnolo, Jose M. Paiva, Stephen C. Veldhuis, Anselmo E. Diniz
Summary: Nickel-based alloys are widely used in aerospace components and the oil and gas industry. However, their machining is challenging due to their characteristics. This study evaluates the influence of tool geometry, feed rate, and cutting speed on the surface integrity of Inconel 625 cladding milling process. The results show that cutting speed has the greatest impact on specific cutting pressure, and both cutting speed and feed rate affect the thickness of the deformed layer. The surface and subsurface alterations caused by mechanical-thermal loadings have beneficial effects on corrosion resistance and compressive residual stress.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
