Article
Chemistry, Physical
Hongyu Shen, Liang Wang
Summary: Plasma nitriding of titanium at 700 degrees C with hollow cathode discharge assistance resulted in the formation of continuous and dense Ti-N compound layers, primarily composed of Ti2N phase, which significantly improved the electrical conductivity and corrosion resistance of the titanium bipolar plates.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Nand Kumar, B. Ganguli, Satpal Sharma, Bidesh Roy, Shivanshu Dixit
Summary: The research showed that Glow Discharge Plasma Nitriding treatment significantly improved the hardness, wear resistance, and tensile strength of C-300 maraging steel. The case depth increased with treatment temperature, with the best corrosion resistance observed at 490 degrees C.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2022)
Article
Chemistry, Physical
J. Morgiel, L. Maj, K. Szymkiewicz, M. Pomorska, P. Ozga, D. Tobola, M. Tarnowski, T. Wierzcho
Summary: Plasma nitriding of titanium alloys is an efficient method for improving surface hardness and wear resistance, but high temperatures can lead to increased surface roughness. Optimal treatment temperature close to 600 degrees Celsius allows for simultaneous hardening and preservation of high surface quality.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
M. S. Stechyshyn, M. Ye Skyba, N. M. Stechyshyna, A. Martynyuk
Summary: The results of investigating stress-corrosion wear in model acid media of various steels and gray cast iron were presented. The wear intensity and friction coefficient were found to depend on pressure and sliding velocity. The study also examined the variations of corrosion and mechanical factors of fracture as a function of pressure and sliding speed.
Article
Materials Science, Multidisciplinary
Ozkan Gokcekaya, Celaletdin Ergun, Turgut Gulmez, Takayoshi Nakano, Safak Yilmaz
Summary: The ion nitriding behavior of AISI 316L austenite stainless steel was investigated at different nitriding times and temperatures. The study found that a nitriding temperature of 500 degrees C and time of 9 h led to optimal phase composition and hardness distribution for 316L austenite stainless steels, making it suitable for applications requiring a combination of wear and corrosion resistance.
Article
Materials Science, Multidisciplinary
Feng Yang, Kun-Mao Li, Xing-Jun Liu, Hong Sun, Cui-Ping Wang
Summary: The vacuum electromagnetic induction nitriding technology was used to prepare a gradient nitrided layer on the surface of a Ti6Al4V alloy. The study found that there were numerous high-density stacking faults and basal stacking faults on the alloy surface, causing lattice distortion. Additionally, the hardness and compressive stress of the nitrided layer also changed.
Article
Materials Science, Multidisciplinary
M. S. Stechyshyn, N. M. Stechyshyna, O. V. Dykha, A. V. Martynyuk, V. V. Liukhovets, M. V. Lukyanyuk
Summary: The physicochemical and tribological characteristics of structural steels nitrided in anhydrous medium under corrosion-mechanical fracture in an acidic model medium are studied. The flexibility of nitrided layers adaptation to changes in external load conditions is explained by minimizing the increment E/A ratio. Different minimization mechanisms are identified. Dense protective films formation on the surface stabilizes the fracture processes of nitrided structural steels under elastic-plastic contact. Increase in the efficiency of the debris-layer barrier effect leads to stable fracture under plastic contact. The influence of temperature and sucrose on the intensity of surface fracture is also investigated.
Article
Chemistry, Physical
Sunghwan Yeo, Cheol Min Lee, Hee Soo Yoon, Jun Hwan Kim
Summary: Chromium-chromium nitride multi-coating barriers were synthesized on HT9 steel disks using the electroplating and RF plasma nitriding techniques to mitigate fuel-cladding chemical interactions. It was found that plasma nitriding could not only create an additional chromium nitride layer on the outer surface of the Cr coating, but also significantly improve the crack-closure effect on hard Cr coatings. Additionally, the 72-hour nitrided Cr coating showed excellent barrier properties without visible inter-diffusion when subjected to diffusion couple tests of Ce-Nd alloys at 650 degrees C for 25 hours.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Pierre Landgraf, Tim Bergelt, Lisa-Marie Rymer, Christian Kipp, Thomas Grund, Guenter Braeuer, Thomas Lampke
Summary: Plasma nitriding is widely used to improve surface hardness and wear properties in various industrial applications. However, the underlying diffusion processes of nitrogen and its interaction with the existing microstructure in high-alloy tool steels are not well understood. This study investigates the changes in microstructure, chemical composition, and hardness of high-alloy tool steels after plasma nitriding using various analytical methods.
Article
Chemistry, Physical
Marcin Moneta, Jerzy Stodolny, Beata Michalkiewicz, Rafal Jan Wrobel
Summary: Surface roughness is crucial in the nitriding process of treated parts. Eight samples of 42CrMo4 steel were used to investigate the Ra parameter. Innovative combined microhardness profiles were used to present results within the compound zone and diffusion layer. No distinct correlations between compound zone morphology and the Ra parameter were observed, but a dependence between the Ra parameter and diffusion layer thickness was found. A distinct nitrided layer was observed on the polished sample.
Article
Materials Science, Coatings & Films
Thierry Czerwiec, Svetlana Tsareva, Aurore Andrieux, Stephanie Bruyere, Gregory Marcos
Summary: This study investigates the ability of nitriding treatments to modify the wetting and evaporation of sessile droplets on austenitic stainless steel. The surface contact angles can be tailored by adjusting the substrate biasing and using a higher bias voltage. The formation of spikes and surface contamination with oxynitride layer also affect the contact angles.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Emilia Wolowiec-Korecka, Jerzy Michalski, Bartlomiej Januszewicz
Summary: The kinetics and structure of the nitrided layer growth depend on the nitrogen flux from the atmosphere to the nitrided surface. The surface nitriding process is influenced by the nitrogen flux more significantly than the diffusion flux into the substrate. The stability of the nitride layer in low-pressure nitriding depends on the annealing atmosphere during the annealing stage.
Article
Chemistry, Physical
Chengwei Zhang, Kai Wen, Yan Gao
Summary: The microstructure and formation mechanism of the nitrided layer on surface nanocrystalline TA17 titanium alloy were studied. The nitrided layer consisted of an outer TiN layer formed by deposition of titanium nitride particles and an inner Ti2N layer formed by nitrogen diffusion into the titanium substrate. The Ti2N layer was an Al-depleted zone, indicating its formation mode of nitrogen diffusion. The TiN layer of the shot-peened sample was mainly composed of equiaxed nanograins and a small amount of columnar grains, compared to the columnar grains in the original sample. The formation of equiaxed nanocrystalline TiN was attributed to the presence of high-energy grain boundaries on the shot-peened surface.
APPLIED SURFACE SCIENCE
(2023)
Article
Automation & Control Systems
Hu Huang, Jing Hong, Yongfeng Qian, Chao Wang, Zhiyu Zhang, Lin Zhang
Summary: Nanosecond pulsed laser nitriding is a promising technique for improving the surface hardness of Zr-based metallic glass. However, it often results in irregular surface profile and poor surface roughness. This study introduces nanosecond laser polishing as a post-machining approach to flatten the laser nitrided surface and effectively reduce surface roughness.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
M. Kaba, M. Altay, E. Akyildiz, F. Muhaffel, S. Ozkurt, E. Atar, M. Baydogan, H. Cimenoglu
Summary: This study investigates the wear behavior of gas nitrided hot work tool steels using a laboratory sliding wear test rig, and finds that the nitriding process significantly affects the wear mechanism of the steels.
Review
Anatomy & Morphology
Justyna Niderla-Bielinska, Ewa Jankowska-Steifer, Aleksandra Flaht-Zabost, Grzegorz Gula, Elzbieta Czarnowska, Anna Ratajska
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2019)
Article
Cell Biology
Radoslaw Olkowski, Elzbieta Czarnowska, Michal Wojasinski, Justyna Niderla-Bielinska, Tomasz Ciach, Anna Ratajska
CELL BIOLOGY INTERNATIONAL
(2019)
Article
Materials Science, Coatings & Films
J. Morgiel, K. Szymkiewicz, L. Maj, M. Tarnowski, T. Wierzchon
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Tomasz Goryczka, Maciej Zubko, Jozef Lelatko, Piotr Salwa, Tadeusz Wierzchon, Joanna Wojewoda-Budka, Marta Janusz-Skuza
MATERIALS TRANSACTIONS
(2019)
Article
Materials Science, Multidisciplinary
Justyna Witkowska, Janusz Kaminski, Tomasz Plocinski, Boguslaw Rajchel, Tomasz Borowsk, Tadeusz Wierzchon
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2019)
Article
Materials Science, Coatings & Films
Krzysztof Szymkiewicz, Jerzy Morgiel, Lukasz Maj, Malgorzata Pomorska, Michal Tarnowski, Tadeusz Wierzchon
SURFACE & COATINGS TECHNOLOGY
(2020)
Article
Cell Biology
Agnieszka Sowinska, Yasser Morsy, Elzbieta Czarnowska, Beata Oralewska, Ewa Konopka, Marek Woynarowski, Sylwia Szymanska, Maria Ejmont, Michael Scharl, Joanna B. Bierla, Marcin Wawrzyniak, Bozena Cukrowska
Article
Chemistry, Physical
Krzysztof Szymkiewicz, Jerzy Morgiel, Lukasz Maj, Malgorzata Pomorska, Michal Tarnowski, Oleh Tkachuk, Iryna Pohrelyuk, Tadeusz Wierzchon
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
M. Tarnowski, T. Borowski, S. Skrzypek, K. Kulikowski, T. Wierzchon
Summary: The study compares the structure and properties of TiN + Ti2N + α Ti(N) nitrided surface layers produced on Grade 2 titanium and Ti6Al7Nb titanium alloy using different nitriding processes, showing differences in microstructure, residual stress, thickness, and wear and corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Michal Tarnowski, Justyna Witkowska, Jerzy Morgiel, Witold Jakubowski, Bogdan Walkowiak, Tomasz Borowski, Tadeusz Wierzchon
Summary: NiTi shape memory alloys are increasingly used in bone and cardiac implants, but their oxide layer may be harmful to the human body. Surface engineering techniques, such as low-temperature plasma oxidation and cathode sputtering, can improve the properties of these alloys. This study found that prior cathodic sputtering in argon-nitrogen plasma can enhance the thickness and antibacterial properties of nitrogen-doped titanium dioxide layers on NiTi implants.
Article
Chemistry, Physical
Justyna Witkowska, Michal Tarnowski, Emilia Choinska, Marek Kulpa, Jacek Szade, Gerhard Raugh, Wojciech Swieszkowski, Tadeusz Wierzchon
Summary: The study showed that short-term contact with low-temperature plasma can shape the surface properties of the carbon coating, showing potential for medical applications.
Article
Materials Science, Multidisciplinary
Janusz Kaminski, Janusz Rebis, Tadeusz Wierzchon, Konrad Malkiewicz
OCHRONA PRZED KOROZJA
(2020)
Article
Metallurgy & Metallurgical Engineering
J. Kaminski, K. Malkiewicz, J. Rebis, T. Wierzchon
ARCHIVES OF METALLURGY AND MATERIALS
(2020)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)