Article
Chemistry, Physical
Lucas Autones, Pascal Aubry, Joel Ribis, Hadrien Leguy, Alexandre Legris, Yann de Carlan
Summary: This study aims to assess the potential of Laser Additive Manufacturing (LAM) for Ferritic/Martensitic ODS steels. The results show that it is difficult to obtain the expected characteristics of F/M ODS grades using LAM processes. The powder melting stage currently limits the possibility of obtaining fine and dense precipitation of nano-oxides in these steels.
Article
Materials Science, Multidisciplinary
Sunil Kumar Rajulapati, S. D. Gaikwad, Vikram. V. Dabhade, Ujjwal Prakash
Summary: This study investigates the feasibility of using the powder forging route for the consolidation of oxide dispersion strengthened steel. The results show that the powder forging process eliminates the prior particle boundaries network and achieves near isotropic mechanical properties and homogeneous chemical composition.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Ratnakar Singh, Ujjwal Prakash, Deepak Kumar, Kinkar Laha
Summary: The creep behavior of a high yttria Fe-18Cr-2W-0.57Ti-1Y(2)O(3) ferritic oxide dispersion strengthened (ODS) steel produced by powder forging was investigated. Creep tests were conducted at temperatures ranging from 873 K to 1023 K and stresses ranging from 150 MPa to 425 MPa. The results showed high stress exponents and activation energy, indicating the presence of threshold stress due to the interaction between dislocations and oxide particles. The microstructure of the ODS steel remained stable after creep with no significant coarsening of nano size oxide particles.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
D. Kumar, R. Singh, U. Prakash, V. V. Dabhade, K. Laha, T. Sakthivel
Summary: This study investigates the production of oxide dispersion strengthened (ODS) steels through powder forging. The research shows that powder forging can result in ODS steels with reduced anisotropy and enables processing of alloys with high yttria contents. The stress rupture properties of the forged alloy containing yttria were improved, demonstrating the potential of powder forging in fabricating ODS steels with enhanced properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Moises Onoro, Julio Macias-Delgado, Maria A. Auger, Jan Hoffmann, Vanessa de Castro, Teresa Leguey
Summary: The influence of initial powder particle size and processing route on the final material properties of oxide dispersion strengthened (ODS) RAF steels was investigated. It was found that differences in powder particle size decreased after milling, and both alloys exhibited similar grain sizes and secondary phase distributions. The steel produced with smaller powder size showed slightly better mechanical properties compared to the other alloy.
Article
Materials Science, Multidisciplinary
Akihiko Kimura, Wei Sang, Wentuo Han, Kiyohiro Yabuuchi, Zongxi Xin, Junhua Luan, Peng Dou
Summary: The age-hardening behavior of oxide dispersion strengthened (ODS) ferritic steels with different Cr and Al contents was studied through Vickers hardness measurement and tensile tests after ageing at 475 degrees C for up to 900 hours. Atom probe tomography (APT) was used to investigate the evolution of nanometer-scale structure and chemistry. The results revealed that the age-hardening mechanism in ODS steels involves alpha-alpha' phase separation and/or the precipitation of (Al, Ti)-enriched f1 phases. The concentration and volume fraction of alpha' phase increased significantly with increasing Cr content, while the chemical compositions and volume fraction of f1 phases remained relatively constant during ageing.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chao Liu, Tielong Shen, Cunfeng Yao, Hailong Chang, Kongfang Wei, Lijuan Niu, Zhiwei Ma, Zhiguang Wang
Summary: The study found that a Si modified steel SIMP exhibited better oxidation resistance compared to T91 in 500 degrees C steam with a flow rate of 5 m/s, and the oxidation rate was significantly enhanced at relatively low dissolved oxygen levels. This suggested that not only alloy composition and dissolved oxygen, but also the flow rate, played important roles in the corrosion behavior of ferritic-martensitic steels.
Article
Engineering, Chemical
Ratnakar Singh, Ujjwal Prakash
Summary: In this study, 18Cr ODS steels were produced using mechanical alloying in an attritor mill and powder consolidation through hot forging. The effects of milling time on powder morphology, crystallite size, and lattice strain were investigated. The results showed that the optimum milling time for mechanical alloying was determined to achieve dissolution of constituents in the ferrite matrix, and further milling led to peak broadening. The milled powders were then consolidated through hot powder forging, and the addition of Ti and Y2O3 significantly reduced the grain size in the forged alloys, leading to the formation of fine complex Y-Ti-O oxides.
Article
Materials Science, Multidisciplinary
Ashwani Kumar, Bhagyaraj Jayabalan, Chetan Singh, Jayant Jain, Subrata Mukherjee, Krishanu Biswas, Sudhanshu S. Singh
Summary: In this study, lanthana based oxide dispersion strengthened ferritic steels were fabricated and the effects of chromium content and sintering temperature on the mechanical properties were investigated. The results showed that increasing the chromium content improved the compressive strength and compressive fracture strain of the steel.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Brian Bettes, Yi Xie, Ching-Heng Shiau, Cheng Sun
Summary: In this study, the chemical interactions between neodymium (Nd) and four types of stainless steels were investigated through out-of-pile diffusion couple testing. It was found that nickel was the most active element during the diffusion process and the kinetics of the chemical interactions were strongly dependent on the microstructure.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Ratnakar Singh, Ujjwal Prakash, Deepak Kumar, Kinkar Laha
Summary: The microstructure, crystal structure, and size distribution of oxide particles in oxide dispersion strengthened steels were investigated. The addition of yttria significantly reduces the ductility of the steel. This limitation can be overcome by powder forging of ODS steel powders.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Hwasung Yeom, David Hoelzer, Stuart Maloy, Kumar Sridharan
Summary: The cold spray deposition process was used to manufacture 14YWT oxide-dispersion strengthened (ODS) steel with gas-atomized and ball-milled feed-stock powders. The gas-atomized powder resulted in a thick dense deposit, but annealing above 900 degrees C led to grain growth and heterogeneous precipitation, resulting in lower hardness. The ball-milled powder, after cryomilling and annealing, produced smaller particle sizes and lower hardness, suitable for cold spray deposition, resulting in thick and dense deposits with a favorable microstructure. The cold spray deposits exhibited fine grain sizes and uniform dispersion of Y-Ti-O nanoprecipitates, with hardness values of 770 HV and 496 HV.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xiaoyue Zhang, Chenyang Hou, Jianlei Zhang, Xiaodong Mao, Zhuo Chen, Yuanxiang Zhang, Yanyun Zhao, Changjiang Song, Qijie Zhai
Summary: The large-scale industrial application of oxide dispersion strengthened (ODS) steel is restricted due to the expensive cost and challenges of batch mass production. This study introduced a novel method for preparing ODS steel using precursor powder combining with sub-rapid solidification. By this method, an ODS steel based on 316L stainless steel was successfully prepared, and massive diffuse precipitation of nano-scale oxides was achieved through aging at 800 degrees C for 3 h. The aged 0.25% strip exhibited improved mechanical properties with a yield strength of 411 MPa, tensile strength of 730 MPa, and elongation of 33%, attributed to the precipitation of multiscale oxides.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Chemical
J. Perez-Arbulu, N. Burgos, J. M. Martin, M. Martinez-Iturralde, I. Elosegui
Summary: Nd-Fe-B powders with different particle sizes were produced using gas atomization with helium and argon gases. Helium atomization resulted in finer powders compared to argon atomization. The powders exhibited a fine microstructure and excellent magnetic properties, making them suitable for various applications.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Krzysztof Nowik, Rafal Zybala, Zbigniew Oksiuta
Summary: The composition of ferritic ODS steel elemental powders with different Zr content (0.3-1.0 wt.%) was extensively studied using various techniques. A three-stage process of flattening, convoluted lamellae formation, and subsequent formation of nanocrystalline grains was observed. A methodology for microstructure analysis of nanosized and severely deformed materials was proposed using Whole Powder Pattern Modelling (WPPM) approach.
Article
Materials Science, Multidisciplinary
J. Aldazabal, C. Garcia-Rosales, A. Martin Meizoso, N. Ordas, F. Sordo, J. L. Martinez, J. Gil Sevillano
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
A. Calvo, K. Schlueter, E. Tejado, G. Pintsuk, N. Ordas, I. Iturriza, R. Neu, J. Y. Pastor, C. Garcia-Rosales
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Nerea Ordas, Emma Gil, Arturs Cintins, Vanessa de Castro, Teresa Leguey, Inigo Iturriza, Juris Purans, Andris Anspoks, Alexei Kuzmin, Alexandr Kalinko
JOURNAL OF NUCLEAR MATERIALS
(2018)
Article
Nuclear Science & Technology
Elisa Sal, Carmen Garcia-Rosales, Inigo Iturriza, Inigo Andueza, Nerea Burgo
FUSION ENGINEERING AND DESIGN
(2019)
Article
Nuclear Science & Technology
David Pazos, Marta Suarez, Adolfo Fernandez, Pilar Fernandez, Inigo Iturriza, Nerea Ordas
FUSION ENGINEERING AND DESIGN
(2019)
Article
Materials Science, Multidisciplinary
V Mihalache, M. Walter, I Mercioniu, N. Ordas
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Carola Martinez, Francisco Briones, Claudio Aguilar, Nicolas Araya, Inigo Iturriza, Izabel Machado, Paula Rojas
Article
Metallurgy & Metallurgical Engineering
C. Luno-Bilbao, N. G. Polvorosa, G. Pena, A. Fayanas, J. Perez, I. Guruceaga, A. Veiga, I. Iturriza
Summary: The study investigated various approaches to utilize powder metallurgy in producing diamond-impregnated components, exploring different powders and manufacturing routes to tailor mechanical properties. The influence of alloying elements on strengthening iron-based powders was analyzed, leading to the identification of suitable materials and processing parameters for manufacturing diamond-impregnated tools.
Article
Materials Science, Multidisciplinary
Nerea Ordas, Luis Portoles, Maria Azpeleta, Amaia Gomez, Jose Ramon Blasco, Mario Martinez, Julia Urena, Inigo Iturriza
Summary: The precipitation hardened CuCrZr alloy is considered the baseline option for heat sink material in the water cooled W divertor concept of DEMO due to its high thermal conductivity and strength. Additive Manufacturing technology allows for the creation of innovative solutions with complex structures for heat exchangers and heat sinks, and EB-PBF shows advantages in processing copper alloys by avoiding difficulties associated with high thermal conductivity and reflectivity of copper-based materials.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Chemistry, Physical
E. Bassini, U. Galech, T. Soria, M. Aristizabal, I. Iturriza, S. Biamino, D. Ugues
Summary: The Hot Isostatic Pressing (HIP) technique is increasingly used in Additive and Near-Net Shape manufacturing, requiring high-quality gas atomized powders. Broad particle size distribution is preferred for HIP, but strict control is necessary to avoid negative impacts on mechanical properties of the products.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nuclear Science & Technology
H. Maier, T. Schwarz-Selinger, R. Neu, C. Garcia-Rosales, M. Balden, A. Calvo, T. Duerbeck, A. Manhard, N. Ordas, T. F. Silva
NUCLEAR MATERIALS AND ENERGY
(2019)
Article
Nuclear Science & Technology
David Pazos, Arturs Cintins, Vanessa de Castro, Pilar Fernandez, Jan Hoffmann, Wilfredo Garcia Vargas, Teresa Leguey, Juris Purans, Andris Anspoks, Alexei Kuzmin, Iffigo Iturriza, Nerea Ordas
NUCLEAR MATERIALS AND ENERGY
(2018)
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)
