Article
Nanoscience & Nanotechnology
Tanaji Paul, Cheng Zhang, Noemie Denis, Benjamin Boesl, Arvind Agarwal
Summary: This paper presents the first study on ultrasonic-assisted casting of independent 2D hBN-reinforced aluminum matrix composites, showing improvements in nucleation density and grain refinement. The dispersion and orientation of hBN particles play a crucial role in enhancing properties like hardness, elastic modulus, and wear resistance in the composites. The research indicates a significant advancement in understanding the impact of 2D particle morphology and dimensionality on the ultrasonic casting of metal matrix composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Lian Zhou, Bo Zhang, Fuzhu Li, Ying Yan, Yun Wang, Ruitao Li
Summary: A novel glucose-assisted ultrasonic cavitation exfoliation (GAUCE) method was proposed to prepare BNNSs, and its preparing mechanism was revealed.
NANOSCALE ADVANCES
(2023)
Article
Materials Science, Ceramics
Minhyeok Lee, Unseok Jung, Jong-Il Kim, Hyeondeok Jeong, Jaewoo Kim, Se Youn Moon, Se Gyu Jang, Sung-Soo Ryu, Seong Yun Kim, Hunsu Lee
Summary: Ultrahigh-temperature ceramics (UHTCs) are highly hard and resistant to oxidative ablation, suitable for hypersonic environments. However, their low fracture toughness limits their use. In this study, zirconium diboride was sintered with high aspect ratio boron nitride nanotubes (BNNTs) to improve fracture toughness. Plasma functionalization effectively disperses the BNNTs in UHTC, increasing the fracture toughness of the UHTC composite.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Acoustics
Jianxin Zheng, Yonglei Guo, Lixin Zhu, Hanlin Deng, Yingju Shang
Summary: The ultrasonic cavitation effect has been found to improve machining quality through simulation and experimental studies. Particularly, the cavitation effect generated in the two-dimensional ultrasonic rolling process has a positive impact on processing quality.
Article
Materials Science, Composites
Gaojie Han, Hongli Cheng, Chengen He, Yuezhan Feng, Chuntai Liu
Summary: In this study, high-performance polystyrene (PS)-based composites with continuous segregated hBN@AgNP networks were successfully prepared. The modification and bridge effect of AgNP led to significantly reduced contact thermal resistance and improved thermal conductivity. The as-fabricated composite exhibited much higher thermal conductivity compared to other composites, providing a new approach for the preparation of high-performance polymer-based thermal management materials.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Xiaolong Lu, Tyler Dolmetsch, Cheng Zhang, Yao Chen, Benjamin Boesl, Arvind Agarwal
Summary: By adding BNNT to the Al2O3 matrix, both the strength and toughness of the composite are improved simultaneously. The main toughening mechanisms include crack bridging, BNNT pull-out, and crack deflection.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Industrial
Pablo B. P. Leao, Shutong Zhang, J. R. Barros Neto, Suyanny A. Freire, Rodrigo de C. P. Loureiro, Antonio J. Ramirez, H. F. G. de Abreu
Summary: Tensile armor made of pearlitic steel wires undergoes a series of manufacturing processes including hot-rolling, patenting treatment, cold forming, wire coiling, stress relief, and re-winding. The effect of key parameters on the microstructure, microtexture, and crack susceptibility was investigated by simulating different process routes. The study found that the microtexture orientation and crack susceptibility were influenced by the PT and stress relief treatment, which led to the formation of small recrystallized grains in pearlitic blocks.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Song Zhang, Weijiang Chen, Yushun Zhao, Kerong Yang, Bin Du, Lijian Ding, Wei Yang, Sizhu Wu
Summary: NH2 functionalization through C doping on BNNT surface establishes chemically active sites, improving insulation properties and thermal conductivity compared to traditional method. With 5% NH2 functionalization, BNNT-A shows a 12.21 W/(m.K) improvement in thermal conductivity over BNNT-B.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Seunghwa Yang
Summary: The reinforcement effect of boron nitride nanotube (BNNT) and carbon nanotube (CNT) on the thermoelastic behavior of poly(methyl methacrylate) (PMMA) nanocomposites was compared using molecular dynamics (MD) simulations and mean-field micromechanics models. Both types of nanotubes showed different enhancements in the properties of the composites, with the thermoelastic behavior being sensitive to interfacial imperfections and interphase zones.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Review
Materials Science, Multidisciplinary
Sohail Mohammed, Pranjal Nautiyal, Tanaji Paul, Cheng Zhang, Arvind Agarwal
Summary: Boron Nitride Nanotubes (BNNTs) have exceptional mechanical properties and structural similarities to carbon nanotubes. They exhibit superior thermal stability, higher resistance to oxidation at elevated temperatures, and enhanced neutron shielding capacity. These advantages open up possibilities for manufacturing BNNT-reinforced MMCs and their applications in radiation shielding.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2023)
Article
Chemistry, Physical
Jiali Yan, Tianran Chen, Yang Leng, Zhe Wang, Yan Qin, Miaojun Xu
Summary: Epoxy resin composites with superior thermal conductivity were fabricated by dispersing carboxylated multiwalled carbon nanotubes in cellulose nanofiber aerogels and impregnating and curing the EP precursors. The composites exhibited excellent heat absorption and dissipation performance, high electric insulating performance, and improved dimensional stability. They can be used in electronic packaging, devices, and other electronic applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Tao Jiang, Ying Wang, Shitao Zhang, Shanshan Shi, Zhao Qian, Xinfeng Wu, Kai Sun, Yuantao Zhao, Wenge Li, Jinhong Yu
Summary: An EP/CF-Ni composite thermal conductive material was prepared by combining electroplating and vacuum liquid impregnation, which increased the thermal conductivity and wear resistance of the material.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Zhenbang Zhang, Maohua Li, Yandong Wang, Wen Dai, Linhong Li, Yapeng Chen, Xiangdong Kong, Kang Xu, Rongjie Yang, Ping Gong, Jianxiang Zhang, Tao Cai, Cheng-Te Lin, Kazuhito Nishimura, Hao Nan Li, Nan Jiang, Jinhong Yu
Summary: As power density increases in electronic devices, the need for high-performance thermal interface materials becomes more urgent. Scalable manufacturing of such materials at low cost remains challenging. In this study, a 3D printing method was proposed to align carbon fibers, resulting in thermal interface materials with high thermal conductivity and significantly improved cooling efficiency compared to advanced commercial materials. This work provides valuable insight into the design of highly thermally conductive composites and their practical applications in electronics thermal management.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Manuela Pacella, Sina Saremi-Yarahmadi, Luciano Lamberti
Summary: The study explores the use of ultrasonic bonding to apply thick coatings on PcBN cutting tools, with the preplacement of multi-walled carbon nanotube powder on the PcBN substrate. Various analysis methods are used to study the change in mechanical properties of the coated tools and the structure of carbon nanotubes. Optimum processing windows for coating MWCNTs on PcBN are discovered, and a relationship between consolidation parameters and porosity of MW(pCNT) bonds is revealed.
Article
Nanoscience & Nanotechnology
Ruth Sang Jones, Sergio Gonzalez-Munoz, Ian Griffiths, Philip Holdway, Koen Evers, Santamon Luanwuthi, Barbara M. Maciejewska, Oleg Kolosov, Nicole Grobert
Summary: This study reports the synthesis of macroscopic sheet assemblies called buckypapers composed of carbon/boron nitride core-shell heteronanotubes (MWCNT@BNNT) or boron nitride nanotubes (BNNTs). The MWCNT@BNNTs were synthesized using Atmospheric Pressure Chemical Vapor Deposition (APCVD) and a safe h-BN precursor ammonia borane. These buckypapers showed improved thermal conductivity compared to control samples, as measured using a novel technique called piercing SThM (pSThM). The results of this work provide valuable insights into the thermal properties of MWCNT@BNNT buckypapers and BNNT buckypapers synthesized by low-energy techniques.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Pranjal Nautiyal, Victoria Wiedorn, Tony Thomas, Nicole Bacca, Alice White, Arvind Agarwal
Summary: High-resolution printing using two-photon polymerization has allowed for the fabrication of accordion-shaped honeycomb lattices with in-plane mechanical anisotropy. The deformation mechanisms and mechanical properties of the lattice in different orientations were investigated using scanning electron microscopy. The accordion-shaped cells exhibited prominent in-plane anisotropy due to their high aspect ratio.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Multidisciplinary Sciences
Christos Michas, M. Cagatay Karakan, Pranjal Nautiyal, Jonathan G. Seidman, Christine E. Seidman, Arvind Agarwal, Kamil Ekinci, Jeroen Eyckmans, Alice E. White, Christopher S. Chen
Summary: Researchers have successfully utilized high-precision fabrication techniques to create scaffolds and microfluidic valves for a simulated model of the heart. By mimicking organ-level cardiac mechanical function at small scales, they have demonstrated the significance of high-precision fabrication in tissue model studies.
Article
Materials Science, Multidisciplinary
Pranjal Nautiyal, Jenniffer Bustillos, Tamil Selvam, Cheng Zhang, Sudipta Seal, Benjamin Boesl, Arvind Agarwal
Summary: This study investigates the reinforcement potential of boron nitride nanotube (BNNT) to enhance the mechanical strength of titanium alloys, resulting in improved hardness and stiffness, as well as enhanced crack resistance. By adjusting the extent of chemical reactions during sintering, the stress-transfer behavior at the matrix/filler interface can be programmed, leading to increased TiN and TiB phases. Insights from studying subsurface deformation mechanisms and crack resistance enhancement can be applied to design Ti-BNNT microstructures with desired mechanical properties and deformation characteristics.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Tanaji Paul, Riddhi Joshi, Ana Exime, William Edward, Cheng Zhang, Benjamin Boesl, Arvind Agarwal
Summary: This article presents the impact of ultrasonic treatment on the microstructural evolution, mechanical behavior, and tribological response of 2D tungsten disulfide reinforced aluminum matrix composites. The study reveals that ultrasonic treatment significantly enhances the dispersion of tungsten disulfide reinforcements in the aluminum matrix, leading to increased nucleation density, improved elastic modulus, and reduced wear volume.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Chemistry, Physical
Ambreen Nisar, Tamil Sakthivel, Cheng Zhang, Benjamin Boesl, Sudipta Seal, Arvind Agarwal
Summary: The study demonstrates that multi-component ultra-high temperature ceramics improve oxidation resistance by forming complex mixed oxides, showing promising potential for application in thermal protection systems.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Lihua Lou, Tanaji Paul, Brandon A. Aguiar, Tyler Dolmetsch, Cheng Zhang, Arvind Agarwal
Summary: This study investigates the load-displacement behavior and adhesion properties of a single nanofiber using indentation and imaging techniques. The results demonstrate that a maximum force of similar to 3 muN and displacement of at least 150% of fiber diameter should be applied to acquire the fiber's macroscopic mechanical properties. The adhesion force of the fiber increased 4-fold after immersion in phosphate-buffered saline.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Ambreen Nisar, Kazue Orikasa Lopez, Tony Thomas, Benjamin Boesl, Arvind Agarwal
Summary: The porosity in ultrahigh-temperature ceramics (UHTCs) is now treated as a functional property for thermal insulation rather than a defect. UHTC foams with tailored porosity and solid solutions have been successfully fabricated using the freeze-drying and pressureless spark plasma sintering techniques. These foams exhibit improved load-bearing capability and thermal insulation compared to monolithic UHTCs.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
David Garcia, Tianhao Wang, R. Sarvesha, Tyler Dolmetsch, Arvind Agarwal, Kenneth A. Ross
Summary: Friction stir additive manufacturing (FSAM) is a sheet-lamination based technique that is influenced by the raster pattern and thermal cycling. This study investigates the impact of raster pattern spacing on the microstructure and properties of Al-5083 during FSAM, showing that controlling the spacing can improve hardness and achieve defect-free joining.
Article
Materials Science, Coatings & Films
Ambreen Nisar, Cheng Zhang, Arvind Agarwal
Summary: This study presents a novel method of applying a stable and high wear-resistant multi-component ultra-high temperature ceramic coating on a steel substrate using pulsed electro-spark deposition. The coating exhibits significantly higher hardness and improved wear resistance compared to the uncoated steel substrate, making it a promising option for enhancing the wear resistance of structural metallic components.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Priscila Rodrigues De Oliveira, Abhijith Kunneparambil Sukumaran, Luiza Benedetti, Denny John, Katie Stephens, Sang-Hyon Chu, Cheol Park, Arvind Agarwal
Summary: Novel hexagonal boron nitride (h-BN) based polyimide (PI) nanocomposites were prepared, exhibiting excellent thermal stability and chemical resistance. The nanocomposites showed improved tribological performance and neutron shielding capacity compared to neat PI under high temperature and neutron radiation environments.
TRIBOLOGY INTERNATIONAL
(2023)
Review
Engineering, Manufacturing
Abderrachid Hamrani, Fatma Zohra Bouarab, Arvind Agarwal, Kang Ju, Hamid Akbarzadeh
Summary: This review provides an exhaustive exploration of multiple wire arc additive manufacturing (MWAAM) techniques and their applications in additive manufacturing and welding. The versatility and potential of these techniques, which can fabricate a variety of materials, are emphasized, and their relevance in major industries such as aerospace, naval, automotive, and energy is highlighted.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Nanoscience & Nanotechnology
Kazue Orikasa, Tyler Dolmetsch, Lihua Lou, Tony Thomas, Benjamin Boesl, Arvind Agarwal
Summary: In this study, ultralight boron nitride nanoplatelet (BNNP) foams were fabricated via freeze-drying, and their highly anisotropic thermal and mechanical properties were characterized. The study also established a protocol for designing 2D material foams with tailorable properties for thermal management applications.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
M. I. Rodriguez-Tapiador, A. Jimenez-Suarez, A. Lama, N. Gordillo, J. M. Asensi, G. del Rosario, J. Merino, J. Bertomeu, A. Agarwal, S. Fernandez
Summary: This study investigates the effects of temperature and gas working pressure on the solar absorption capabilities of Cu3N thin films. The results show that Cu3N thin films have favorable optical properties and resilience against defects, making them promising for solar energy applications.
Article
Materials Science, Ceramics
Tony Thomas, Ambreen Nisar, Cheng Zhang, Shreyas Joglekar, Mark Pankow, Benjamin Boesl, Arvind Agarwal
Summary: This study investigates the dynamic impact behavior and fracturing evolution of TaxHf1-xC samples under high strain rates. Ta0.5Hf0.5C exhibits the highest compressive strength and significantly reduces the crack propagation rate. This effect is attributed to dislocation pile-ups, nano-twin formation, and inter grain twisting.
CERAMICS INTERNATIONAL
(2023)
