Hot-press sintering of aluminum nitride nanoceramics

Liang, Ann J.; Liu, Chang; Branı́cio, Paulo S.

doi:10.1103/physrevmaterials.5.096001

Cited by 5 publications

(5 citation statements)

References 94 publications

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“…For instance, Liang et al. [ 107 ] employed MD simulations using the interatomic potential from Vashishta et al. [ 108 ] to investigate the hot‐press sintering process of AlN nanoceramics.…”

Section: Integrating Machine Learning Assisted Simulations Toolboxmentioning

confidence: 99%

“…MD serves as a more suitable tool for studying polycrystalline nanoceramics. For instance, Liang et al [107] employed MD simulations using the interatomic potential from Vashishta et al [108] to investigate the hot-press sintering process of AlN nanoceramics. They specifically considered samples with varying nanoparticle sizes and hydrostatic pressures to elucidate their effects on the sintering process.…”

Section: Atomistic Simulations For Nanoceramicsmentioning

confidence: 99%

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Perspectives Toward Damage‐Tolerant Nanostructure Ceramics

Fan,

Wen,

Chen

et al. 2024

Advanced Science

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Advanced ceramic materials and devices call for better reliability and damage tolerance. In addition to their strong bonding nature, there are examples demonstrating superior mechanical properties of nanostructure ceramics, such as damage‐tolerant ceramic aerogels that can withstand high deformation without cracking and local plasticity in dense nanocrystalline ceramics. The recent progresses shall be reviewed in this perspective article. Three topics including highly elastic nano‐fibrous ceramic aerogels, load‐bearing nanoceramics with improved mechanical properties, and implementing machine learning‐assisted simulations toolbox in understanding the relationship among structure, deformation mechanisms, and microstructure‐properties shall be discussed. It is hoped that the perspectives present here can help the discovery, synthesis, and processing of future structural ceramic materials that are insensitive to processing flaws and local damages in service.

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Section: Integrating Machine Learning Assisted Simulations Toolboxmentioning

confidence: 99%

Section: Atomistic Simulations For Nanoceramicsmentioning

confidence: 99%

Perspectives Toward Damage‐Tolerant Nanostructure Ceramics

Fan,

Wen,

Chen

et al. 2024

Advanced Science

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“…37−44 While MD simulations provide remarkable accuracy at the nanoscale, their computational demands are often excessive. 45,46 On the other hand, the dissipative particle dynamics (DPD) method, originally proposed by Hoogerbrugge and Koelman,47 offers an alternative approach to address these challenges. Comparing with MD simulations and the Lattice Boltzmann method, the DPD method is able to bridge the gap between capturing nanoconfinement effects and maintaining computational feasibility for the larger systems and extended time scales.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Many studies attempted to address this problem by using molecular dynamics (MD) simulations to investigate the behavior of nanoconfined water and hydrocarbons. − While MD simulations provide remarkable accuracy at the nanoscale, their computational demands are often excessive. , On the other hand, the dissipative particle dynamics (DPD) method, originally proposed by Hoogerbrugge and Koelman, offers an alternative approach to address these challenges. Comparing with MD simulations and the Lattice Boltzmann method, the DPD method is able to bridge the gap between capturing nanoconfinement effects and maintaining computational feasibility for the larger systems and extended time scales. , In particular, DPD’s soft interaction potentials and coarse-grained nature facilitate simulations over larger spatiotemporal scales compared to MD, thus providing a balance between efficiency and detail that is particularly advantageous for exploring the interaction dynamics. , Moreover, DPD accurately describes colloid transport and retention processes across a wide range of conditions since fluid flow and colloid transport are fully coupled in the DPD method .…”

Section: Introductionmentioning

confidence: 99%

Colloid Transport in Bicontinuous Nanoporous Media

Liang,

Liu,

Branicio

2024

Langmuir

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Colloid transport and retention in porous media are critical processes influencing various Earth science applications, from groundwater remediation to enhanced oil recovery. These phenomena become particularly complex in the confined spaces of nanoporous media, where strong boundary layer effects and nanoconfinement significantly alter colloid behavior. In this work, we use particle dynamics models to simulate colloid transport and retention processes in bicontinuous nanoporous (BNP) media under pressure gradients. By utilizing particle-based models, we track the movement of each colloid and elucidate the underlying colloid retention mechanisms. Under unfavorable attachment conditions, the results reveal two colloid retention mechanisms: physical straining and trapping in low-flow zone. Furthermore, we investigate the effects of critical factors including colloid volume fraction, d, pressure difference, ΔP, interaction between colloids and BNP media, E c−p , and among colloids, E c−c , on colloid transport. Analysis of breakthrough curves and colloid displacements demonstrates that higher values of d, lower values of ΔP, and strong E c−p attractions significantly increase colloid retention, which further lead to colloid clogging and jamming. In contrast, E c−c has minimal impact on colloid transport due to the limited colloid− colloid interaction in nanoporous channels. This work provides critical insights into the fundamental factors governing colloid transport and retention within stochastic nanoporous materials.

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“…Phase change materials are gradually widely used in the field of heat dissipation due to their high thermal conductivity [3]. The conventional heat dissipation temperature range of the electronic device is 40-75 ℃ [4][5][6] low melting point liquid metal satisfies the phase change requirement of this temperature zone well and has high thermal conductivity [7,8]. It is an order of magnitude higher than traditional thermal interface materials [9][10][11] with very good application prospects [12].…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Preparation of Submicron Low Melting Point Alloy Powder

Shu

Shi

Jing

et al. 2020

MSF

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In order to study the preparation of low-melting alloy powder in phase change materials, three sets of control experiments were set up in this paper. To explore the effects of ultrasonic oscillation, ultrasonic atomization technology and rapid cooling had an effect on the particle size, surface morphology and powder shape of ultrasonic powder making. In the experiment, ultrasonic atomization, rapidly cooling ultrasonic atomization, and ultrasonic vibration generated powder were tested. The results showed that the surface of fog droplets generated by ultrasonic atomization was smooth, with distinct particles. The powder diameter was large, ranging from 20-60 μm. The surface of the powder obtained by ultrasonic shock existed an aggregation phenomenon. The powder diameter was small ranging from 5-10 μm. The ultrasonic atomized powder obtained by rapid cooling was mostly spherical with a smooth surface. After the screening, spherical powder with a diameter of 15-25 μm and the smooth surface could be obtained. The results showed that the particle diameter is small and uniform, while the uneven surface was difficult to eliminate. The experimental conditions of rapid cooling were favorable for the smoothness of the particle surface and the roundness of powder shape. Spherical powder with a diameter of 15-25 μm can be obtained by screening the rapidly cooled powder after ultrasonic atomization. Different experimental conditions and technological approach can produce high-performance low melting point alloy powder.

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Hot-press sintering of aluminum nitride nanoceramics

Cited by 5 publications

References 94 publications

Perspectives Toward Damage‐Tolerant Nanostructure Ceramics

Perspectives Toward Damage‐Tolerant Nanostructure Ceramics

Colloid Transport in Bicontinuous Nanoporous Media

Ultrasonic Preparation of Submicron Low Melting Point Alloy Powder

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