Article
Materials Science, Ceramics
Zhening Chen, Huizi Chen, Hui Yang, Jiabang Wang
Summary: Magnesium aluminate spinel shows good corrosion resistance and low cost in combating lithium ion corrosion, playing a crucial role in the preparation of lightweight spinel ceramics. Spinel bubbles were successfully prepared through the electrofusion injection process, leading to the production of lightweight spinel ceramics with different densities and excellent microstructure and mechanical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Yang Zhang, Yunlong Ai, Weihua Chen, Sheng Ouyang
Summary: A new type of lightweight high entropy alloy was prepared by mechanical alloying and spark plasma sintering. The effects of milling time and sintering temperature on the alloy's phase evolution, microstructure, and mechanical properties were investigated. The alloy sintered at 1050 degrees C showed the best comprehensive mechanical properties, surpassing most similar alloys in terms of density, hardness, strength, plasticity, and specific strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Rana Ghannam, Adrien Moll, David Berardan, Loic Coulomb, Antonio Vieira -E-Silva, Benjamin Villeroy, Romain Viennois, Mickael Beaudhuin
Summary: This article reports the effect of nano-structuring and purity on the thermal and thermoelectric properties of alpha-SrSi2. The results show that nanostructured pellets with a grain size of about 200 nm can be obtained using ball milling and spark plasma sintering, which reduces the lattice contribution to the thermal conductivity. The figure of merit ZT is improved to 0.20 around room temperature after nano-structuring. The influence of Sr purity on the thermoelectric properties is also presented.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Linda Abbassi, David Mesguich, Loic Coulomb, Geoffroy Chevallier, Romain Aries, Claude Estournes, Emmanuel Flahaut, Romain Viennois, Mickael Beaudhuin
Summary: In this paper, a simple route to synthesize nano-beta-FeSi2 material is reported. The impact of spark plasma sintering parameters on the material properties is studied. Experimental results show that high-density nano-beta-FeSi2 pellets can be obtained using this method in a short time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
S. Srinivasan, B. C. Hornbuckle, K. A. Darling, H. Kim, Y. Q. Wang, K. Solanki
Summary: The study found that Ta nanoclusters can effectively trap helium, forming small bubbles and suppressing swelling. Irradiated Cu-Ta alloys at different temperatures showed bubbles mainly concentrated around Ta nanoclusters, with larger bubbles at high temperatures primarily associated with nanoclusters.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Md Zakir Hossain, Md Razaul Karim, Sourav Sutradhar, Muhammad Badrul Islam Chowdhury, Paul A. Charpentier
Summary: By synthesizing nickel nanoparticles on supported mesoporous alumina and controlling their size, the efficiency and yield of hydrogen production in hydrothermal gasification can be significantly improved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Business
Wilfredo Leiva Maldonado, Jussara Ribeiro, Octavio Augusto Fontes Tourinho
Summary: We tested for the presence of four types of rational bubbles in the BRICS exchange rates against the US dollar and found evidence of at least one bubble for Brazil, Russia, India, and South Africa. However, no bubbles were found in China's exchange rate, confirming the results of other periodically recurring bubble tests for this dataset.
EMERGING MARKETS FINANCE AND TRADE
(2021)
Article
Materials Science, Multidisciplinary
O. Dehghani Dastjerdi, H. Shokrollahi, N. Asakereh Raad
Summary: This study evaluated the structural and magnetic properties of rare-earth-doped garnets prepared by the solid-state route. The samples with Bi3+ cations showed the maximum saturation magnetization, while the presence of La3+ led to a decrease in Ms.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Chenghao Zhang, Chun Li, Mushi Zheng, Xiaoqing Si, Dejun Gao, Junlei Qi, Jian Cao
Summary: Mechanically durable superhydrophobic surfaces were fabricated using silver nanoparticle paste and stainless steel mesh. A facile method was adopted to synthesize silver nanoparticle paste, and a multi-level hierarchical superhydrophobic surface was formed by introducing a stainless steel mesh during the sintering process.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
D. Fernandez-Gonzalez, M. Suarez, J. Pinuela-Noval, L. A. Diaz, C. Gomez-Rodriguez, L. V. Garcia Quinonez, A. Borrell, A. Fernandez
Summary: Alumina/molybdenum nanocomposites were prepared by colloidal synthesis and were characterized by microstructure, hardness, toughness, and three-point bending test. The presence of molybdenum nanoparticles resulted in a fine-grained structure and improved mechanical properties compared to monolithic alumina.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Ao Fu, Yuankui Cao, Yuxi Liu, Shenghang Xu
Summary: A series of lightweight TaNbVTi-based refractory high entropy alloys (RHEA) were fabricated using ball-milling and spark plasma sintering (SPS). The addition of Al2O3 ceramic particles resulted in the formation of reinforced TiO precipitates. The RHEA with 15% Al2O3 exhibited high compressive yield strength and low density, outperforming the RHEA without Al2O3 addition. The high specific yield strength of the RHEAs is attributed to the introduction of a high volume fraction of Al2O3 additives, while the ductile matrix contributes to the good compressive plasticity.
Article
Chemistry, Physical
S. Lv, J. S. Li, S. F. Li, N. Kang, B. Chen
Summary: This study investigated the effect of heat treatment on the interfacial bonding in titanium matrix composites reinforced with carbon fibers. Results showed that the best mechanical properties were achieved at a heat treatment temperature of 900 degrees C. Suitable interfacial reaction and fine grain size were identified as critical factors for obtaining high-performance CFs/TMCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
L. Bolzoni, F. Yang
Summary: This study investigates the applicability and accuracy of five fundamental analytical models commonly used to estimate the thermophysical properties of porous materials for predicting the mechanical behavior of isotropic pure metal-based and two-phase alloy-based porous materials. New combined models with increased accuracy of approximately 90% have been derived and could be applied for predicting the thermophysical and mechanical properties of multi-phase materials with unknown microstructures.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Ceramics
Ying Xiong, Zhuo Xing, Juhai Weng, Chi Ma, Jibran Khaliq, Chunchun Li
Summary: The research demonstrated that NaCaVO4 exhibits low sintering temperature, excellent microwave dielectric properties, and no chemical reaction with silver, making it suitable for LTCC applications and showing potential for lightweight device applications.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Priyanka, Saravanan Muthiah
Summary: A trade-off between thermoelectric performance and cost-effectiveness enables commercial thermoelectric power generation. FeSi2 based materials have potential due to their low-cost and abundance, but their thermoelectric performance is inferior to other materials. This work presents a simple synthesis strategy, resulting in improved thermoelectric and mechanical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Sei Jin Park, Jungho Shin, Daniel J. Magagnosc, Sanha Kim, Changhong Cao, Kevin T. Turner, Prashant K. Purohit, Daniel S. Gianola, A. John Hart
Article
Materials Science, Multidisciplinary
Zhuocheng Xie, Jungho Shin, Jakob Renner, Aruna Prakash, Daniel S. Gianola, Erik Bitzek
Article
Materials Science, Multidisciplinary
Glenn H. Balbus, Fulin Wang, Daniel S. Gianola
Article
Materials Science, Multidisciplinary
Jungo Shin, Gunther Richter, Daniel S. Gianola
MATERIALS & DESIGN
(2020)
Article
Multidisciplinary Sciences
Fulin Wang, Glenn H. Balbus, Shuozhi Xu, Yanqing Su, Jungho Shin, Paul F. Rottmann, Keith E. Knipling, Jean-Charles Stinville, Leah H. Mills, Oleg N. Senkov, Irene J. Beyerlein, Tresa M. Pollock, Daniel S. Gianola
Article
Microscopy
Fulin Wang, McLean P. Echlin, Aidan A. Taylor, Jungho Shin, Benjamin Bammes, Barnaby D. A. Levin, Marc De Graef, Tresa M. Pollock, Daniel S. Gianola
Summary: A monolithic active pixel sensor based direct detector optimized for scanning electron microscope primary beam energies is used for electron back-scattered diffraction (EBSD) applications. The detector provides high detection efficiency and a large array of pixels, allowing sensitive and accurate detection of Kikuchi bands, with optimal contrast occurring in the 8-16 keV range. The diffraction pattern acquisition speed is greatly improved through sparse sampling mode and inpainting algorithms, while achieving high-speed EBSD mapping.
Article
Materials Science, Multidisciplinary
Drew S. Melchert, Keith Johnson, Brian Giera, Erika J. Fong, Maxim Shusteff, Julie Mancini, John J. Karnes, Corie L. Cobb, Christopher Spadaccini, Daniel S. Gianola, Matthew R. Begley
Summary: Numerical simulations of acoustic focusing in dense suspensions have provided insights into the relationships between input parameters, structural features, and functional properties. Designing materials with controlled properties has been achieved by modulating input parameters to control geometric features of particles, while microstructural features play a role in various transport properties of functional materials. The results also highlight the potential of acoustic focusing in accessing a range of property values and the impact of meso- and micro-structural features in determining material functionalities.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Emily E. Levin, Daniil A. Kitchaev, Yolita M. Eggeler, Justin A. Mayer, Piush Behera, Daniel S. Gianola, Anton Van der Ven, Tresa M. Pollock, Ram Seshadri
Summary: The Heulser intermetallic MnAu2Al undergoes a significant change in magnetization in response to plastic deformation, likely due to antiferromagnetic interactions arising from chemical changes at antiphase boundaries created by the deformation. The coupling between chemical and magnetic order across antiphase boundaries may occur in other ordered magnetic systems, providing an explanation for anomalous magnetic behavior in several systems, including other Heusler intermetallics.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Glenn H. Balbus, Johann Kappacher, David J. Sprouster, Fulin Wang, Jungho Shin, Yolita M. Eggeler, Timothy J. Rupert, Jason R. Trelewicz, Daniel Kiener, Verena Maier-Kiener, Daniel S. Gianola
Summary: Intentional design of interface disorder, co-segregation of Ce and Ni, and formation of amorphous intergranular films contribute to exceptional thermal stability and elevated temperature strength in a ternary nanocrystalline Al-Ni-Ce alloy. This highlights the efficacy of promoting disorder in alloy design and discovery for outstanding mechanical performance at high homologous temperatures.
Article
Materials Science, Multidisciplinary
Keith Johnson, Drew Melchert, Daniel S. Gianola, Matthew Begley, Tyler R. Ray
Summary: Acoustic forces offer a promising pathway for directed assembly of multi-phase materials via additive processes. Integration of acoustic focusing with direct-ink-write printing allows for modulating material transport properties and achieving long-range ordering of microstructures in printed components. Efforts in acoustic field-assisted printing have demonstrated the capability to rapidly assemble and print colloidal solids with spatial control across multiple length scales.
Article
Materials Science, Multidisciplinary
Tianjiao Lei, Jungho Shin, Daniel S. Gianola, Timothy J. Rupert
Summary: The study successfully fabricated three fully dense bulk nanocrystalline Al alloys with small grain sizes using a powder metallurgy approach. These alloys show excellent mechanical properties and strength. Microstructural characterization reveals that dopant elements segregate to grain boundaries, promoting the formation of amorphous complexions, which contribute to the stability of the materials.
Article
Nanoscience & Nanotechnology
Chen Shang, Matthew R. Begley, Daniel S. Gianola, John E. Bowers
Summary: This study combines models of dislocation motion and thin film channel cracking to solve the cracking issue caused by threading dislocation density in silicon photonic integrated circuits. The proposed solutions include increasing optical confinement and reducing total layer thickness.
Article
Nanoscience & Nanotechnology
Tianjiao Lei, Mingjie Xu, Jungho Shin, Daniel S. Gianola, Timothy J. Rupert
Summary: Unique nanorod precipitates with a core-shell structure are found to nucleate from the grain boundaries of a bulk nanocrystalline Al-Ni-Y alloy. The local structure and chemistry of these features during annealing are studied. As annealing time increases, more nanorods transform to an ordered structure while the shell chemistry transitions from Y-rich to Ni-rich. The correlation between the nanorods and amorphous complexions is observed.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Xiaosong Liu, Amy Fleischer, Gang Feng
Summary: Organic phase change materials (PCMs) have great potential for thermal energy storage, but their practicality is limited by liquid leakage tendency, which can be mitigated through encapsulation with a polymer shell. This study focuses on nanoencapsulation, creating a high latent heat and excellently thermally reliable nanoencapsulated PCM system. Additionally, changing surfactants allows for tuning the PCM capsule size and shell thickness.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Lin Zhang, Gang Feng