Article
Materials Science, Ceramics
Dong Wang, Yifan Bai, Bo Qiu, Hongtao Yu, Zhibao Li
Summary: A microstructure evolution model was developed for ceramic materials and utilized to optimize spark plasma sintering parameters, leading to reduced design time and material consumption. Based on the optimized parameters, a successful ceramic tool material composed of Al2O3, TiB2, and TiC was obtained. The materials prepared under the optimized parameters exhibited excellent mechanical properties, with a hardness of 20.3 GPa, fracture toughness of 10.5 MPa/m(2), and flexure strength of 839.5 MPa, when sintered at 1600°C, under 40 MPa pressure, and with a 7-minute holding period.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Vadde Madhur, Muthe Srikanth, A. Raja Annamalai, A. Muthuchamy, Dinesh K. Agrawal, Chun-Ping Jen
Summary: In this study, W-Cu composites were fabricated by adding various amounts of nano-copper to tungsten, showing improvements in densification, strength, hardness, and electrical conductivity with increasing copper content. Fractography analysis of tensile tested samples revealed a mixed-mode of fracture, and an increase in nano-copper content resulted in higher electrical conductivity.
Article
Materials Science, Multidisciplinary
Muhammad Imran, Lea Deillon, Irina Sizova, Bram Neirinck, Markus Bambach
Summary: This study focuses on the possibility of manufacturing multi-material structures using spark plasma sintering (SPS), expanding the application of this process by utilizing the specific properties of different materials. By characterizing the sintering behavior of two different materials, CuCrZr and nickel, at various conditions, and representing the densification data using master sintering curves and surfaces, optimal sintering conditions were determined for processing multi-material structures. CuCrZr-Ni multi-material samples were successfully sintered using these parameters.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Pavel Nikitin, Ilya Zhukov, Dmitrii Tkachev, Alexander Kozulin, Alexander Vorozhtsov
Summary: The AlMgB14-based material obtained by spark plasma sintering contains 94% AlMgB14 phase and 6% MgAl2O4 spinel phase, with a relative density of 98.6%. It has an average microhardness of 29 GPa and a tensile strength of 56 MPa. The fracture is characterized by a single straight tensile crack.
Article
Materials Science, Multidisciplinary
A. Kumar, M. Bernet, L. Deillon, M. Afrasiabi, M. Bambach
Summary: This paper presents a two-stage approach that integrates direct experimental measurements with numerical simulations, providing a more comprehensive and reliable basis for identifying material parameters in spark plasma sintering (SPS) process. The authors develop a finite element-based fully coupled process model and validate it experimentally. By applying their parameter identification procedure to copper and nickel SPS at different heating rates, the authors achieved an average prediction error below 1.5%. This robust numerical-experimental approach can be used for other commonly used materials in SPS.
MECHANICS OF MATERIALS
(2023)
Article
Materials Science, Ceramics
O. O. Shichalin, E. K. Papynov, V. A. Nepomnyushchaya, A. I. Ivanets, A. A. Belov, A. N. Dran'kov, S. B. Yarusova, I. Yu Buravlev, A. E. Tarabanova, A. N. Fedorets, S. A. Azon, Z. E. Kornakova, S. Yu Budnitskiy, I. G. Tananaev, Yun Shi, Yifei Xiong, Haibo Wang
Summary: Hydrothermal synthesis of NaY-type zeolite was conducted to investigate the effect of temperature on its properties. Solid-state matrices based on NaY zeolite were obtained through spark plasma sintering, which showed high values of compressive strength and hardness. The physical and chemical stability of the ceramic matrix was studied using various analytical methods.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Vaclav Tyrpekl, Marco Cologna, Michael Holzhauser, Petr Svora
Summary: This paper investigates the process of flash spark plasma sintering (FSPS) and the densification process of Gd0.1Ce0.9O2-x powder, finding that low electrical fields are sufficient for flash sintering to occur. The study discusses the challenges of sintering ceria using FAST techniques due to its mechanochemical transformations.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Jong Min Byun, Eui Seon Lee, Youn Ji Heo, Young-Keun Jeong, Sung-Tag Oh
Summary: The study attempted to fabricate dense tungsten using a combination process of spark plasma sintering and hot isostatic pressing, achieving an improvement in relative density and higher strength. X-ray diffractometry and X-ray photoelectron spectroscopy analysis revealed that the specimens were mainly composed of tungsten with trace amounts of metallic tungsten bound with oxygen. The strength testing showed promising results with biaxial bending test.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
J. Fayomi, A. P. I. Popoola, O. M. Popoola, V. S. Aigbodon
Summary: The influence of nano AlN on the microstructural evolution, mechanical and tribological performance was investigated. The research showed that the inclusion of AlN nanoparticles directly enhanced the investigated properties, with the MgAZ91D-12 wt%AlN nanocomposite achieving the best results. Scanning electron microscopy revealed the nucleation and dissolution of the dominant b-Mg17Al12 phase in the monolithic MgAZ91D after the addition of nano-AlN. The MgAZ91D-12 wt%AlN exhibited the highest microhardness, nanohardness, elastic modulus, and the lowest plasticity index.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
E. K. Papynov, O. O. Shichalin, A. A. Belov, V. S. Pechnikov, A. V. Ognev, A. L. Shkuratov, I. Yu Buravlev, M. I. Dvornik, P. G. Chigrin, N. M. Vlasova, A. N. Fedorets, S. A. Azon, O. V. Kapustina, A. O. Lembikov, V. A. Nepomnyushchaya, Z. E. Kornakova, E. A. Gridasova, I. G. Tananaev, Yun Shi, A. I. Ivanets
Summary: The possibility of solidifying spent sorbents containing radioactive cesium by spark plasma sintering (SPS) technology was studied. Ceramic samples with a Fe-substituted pollucite CsFeSi2O6 structure were successfully obtained at an optimal SPS consolidation temperature of 900 degrees C. The obtained ceramic met the requirements for solidified Cs-containing radioactive waste. The mechanism of cesium diffusion in the ceramics was determined and the characteristics of the ceramics were analyzed.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Lei Liu, Kenji Shinozaki
Summary: The sub-micro silver precipitated in silica glass via spark plasma sintering exhibited improved fracture toughness of the glass and enhanced thermal conductivity.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Van-Huy Nguyen, Seyed Ali Delbari, Mehdi Shahedi Asl, Quyet Van Le, Abbas Sabahi Namini, Zohre Ahmadi, Mohammad Farvizi, Mohsen Mohammadi, Mohammadreza Shokouhimehr
Summary: This research investigated the sintering behavior and microstructure of ZrB2-based materials containing graphene nano-platelets and SiC whiskers using spark plasma sintering at 1900 degrees C. The addition of graphene was found to beneficially remove oxide impurities during sintering and contribute to porosity removal, resulting in unique nanostructural features.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Harish Kumar Adigilli, K. Murugan, P. V. V. Srinivas, D. Nazeer Basha, Anirudha Karati, A. K. Pandey, Joydip Joardar
Summary: The sintering behavior and structural stability of 2D WS2 nanosheet powder under high-temperature pressure-assisted spark plasma sintering (SPS) were studied. The results showed that the morphology of the nanosheets transformed into coarse platelets at higher temperatures. At lower temperatures, consolidation primarily occurred through particle-particle interlocking and limited diffusion bonding. A high theoretical density of about 94% was achieved without any additives. The structure of the WS2 remained stable even at high temperatures. The as-sintered WS2 showed low friction coefficient and its tribological behavior was correlated with thermo-mechanical properties and sintering characteristics.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
O. Zgalat-Lozynskyy, I. Kud, L. Ieremenko, D. Zyatkevych, L. Krushynska, R. Lytvyn, O. Myslyvchenko, O. Tolochyn, D. Verbylo
Summary: The study focused on the mechanosynthesis process of TiB2-20 wt pct MoSi2 composite material, which showed traces of lower silicides in the ultradisperse composite powders. Sintering the composite at 1550 degrees C resulted in higher Vickers hardness compared to sintering at 1750 degrees C, but lower bending strength.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Materials Science, Ceramics
C. Guerin, A. Bassoulet-Saintonge, A. Allemand, A. Maitre, R. Boulesteix, T. Piquero, Y. Le Petitcorps
Summary: The barium aluminosilicate compound (BaAl2Si2O8 or BAS) was synthesized using powder reactive sintering in a Spark Plasma Sintering (SPS) device. The reaction pathways between the precursors (alumina, silica, and barium carbonate powders) were investigated at different temperatures from 900 to 1550 degrees Celsius to obtain the desired hexacelcian crystallographic form of BAS without any unwanted compounds. A three-step thermal treatment was proposed to achieve a fully dense and nearly pure (98 wt%) BAS.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi
Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones
Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan
Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang
Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li
Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin
Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina
Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker
Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin
Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee
Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li
Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang
Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song
Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding
Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li
Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)