Storage modulus of porous materials
A relationship between porosity and Young''s modulus is obtained theoretically for porous materials made by powder metallurgy. The relationship is applicable to the entire range of porosity and is capable of treating the transition of pore structure from interconnected to isolated. The exact solution is presented graphically. An approximate solution with a wide applicable porosity … - Download [PDF]
Young''s modulus of porous materials | Semantic Scholar
A relationship between porosity and Young''s modulus is obtained theoretically for porous materials made by powder metallurgy. The relationship is applicable to the entire range of porosity and is capable of treating the transition of pore structure from interconnected to isolated. The exact solution is presented graphically. An approximate solution with a wide applicable porosity …
Development of a processing route for the fabrication of thin ...
The present study aims to develop a systematic processing route using direct ink writing (DIW) and pressureless sintering for fabricating hierarchically porous $$text{ Cu }$$ Cu (HP- $$text{ Cu }$$ Cu ) electrodes. A 3D printable high particle loading $$text{ Cu }$$ Cu ink $$> 95 {text{wt}}%$$ > 95 wt % with polylactic acid as a binder was prepared. Green …
Characterization of Biodegradable Polymers for …
Plastic pollution poses a significant environmental challenge, necessitating the investigation of bioplastics with reduced end-of-life impact. This study systematically characterizes four promising bioplastics—polybutylene …
Correlation between Young''s Modulus and Porosity in …
Progress in predicting the elastic properties of porous materials over an entire porosity range has been closely related to the power-law empirical relationship of Phani and Niyogi: E = E0·...
Microstructural characteristics and elastic modulus of porous …
Focus has been mainly on the description and prediction of the porosity-dependent mechanical properties such as effective strength, elastic modulus and shear …
The influence of the pore shape on the bulk modulus and the Biot ...
Fluid-saturated rocks are multi-phasic materials and the mechanics of partitioning the externally applied stresses between the porous skeleton of the rock and the interstitial fluids ...
Recent Progress of Porous Materials in Lithium-Metal Batteries
1 Introduction Lithium-ion batteries (LIBs) are ubiquitous in our daily life, from portable electronic devices to electric vehicles or plug-in hybrid electric vehicles. [1-6] Although the energy density of LIBs has steadily increased during the past decades, the practical energy density is close to its theoretical value and has hardly been further improved.
Effect of porous particle layer on damping capacity and storage …
The AlSi30 p /5052Al composite with porous particle layer was successfully produced by hot rolling. Numerous interparticle interfaces and pores were seen in the particle …
Relationship between the microstructures and Young''s modulus …
Herein, we prepared 3D-networked porous carbon materials (TNPCs) (porosity ≈ 70%, average pore size ≈ 10 μm, density ≈ 0.37 g cm–3) composed of glassy carbon via pyrolysis of porous phenolic precursors. A compressive test for TNPCs shows that the Young''s moduli and compressive strength of TNPCs ranged from 0.7 to 1.5 GPa and 11 to 30 MPa, respectively, …
Young''s modulus of porous materials | Journal of Materials Science
A relationship between porosity and Young''s modulus is obtained theoretically for porous materials made by powder metallurgy. The relationship is applicable to the entire range of …
The Porosity-dependence of Bulk Modulus of Dry Porous Materials
By semi-analytical modifications to Mackenzie''s equation, a new third-order relation between bulk modulus and porosity is developed for porous materials. Compared with Mackenzie''s equation, the pro... References Breeding, S. K. and Lavoie, D. [1988] " Duomorph sensing for laboratory measurement of shear modulus," in Oceans ''88.
Porous magnetic materials based on EPDM rubber filled with …
Even though porous systems exhibited lower storage modulus in comparison with the solid ones, ... Furthermore, the porous materials under investigation also exhibit lower hysteresis than non-porous magnetic elastomers. Acknowledgments The authors wish ...
Three-dimensional reconstruction and computational analysis of a ...
Three-dimensional reconstructions 3D models of the SBE are reconstructed as illustrated in Fig. 1a.High-resolution micrographs of the SBE were first obtained from FIB-SEM as illustrated in Fig. 1b
A three-dimensional computational multiscale micromorphic …
We present an extension of a multiscale micromorphic theory to three-dimensional problems for porous materials, where a clear scale separation is not given. Following the multiscale micromorphic framework of Biswas and Poh (J Mech Phys Solids 102:187–208, 2017), macroscopic governing equations of a micromorphic continuum are derived from a …
Superior Impact Toughness and Excellent Storage Modulus
Geng and others published Superior Impact Toughness and Excellent Storage Modulus of ... of two methods for the formation of porous polymeric materials. A treatment procedure using supercritical ...
On the yield criterion of porous materials by the homogenization ...
In the previous section, we derived the yield criterion of porous materials by using homogenization approach and Steigmann–Ogden surface model. The yield criterion is analytical and implicit ...
Development of a high particle loading novel copper ink for the ...
High storage modulus signifies the shape-retaining property of parts and very thin porous (Cu) electrodes having extremely fine pores can be 3D printed using the same. Thin (Cu) porous electrodes having extremely fine pores for lithium metal batteries result in achieving high coulumbic efficiency thereby yielding higher battery performance [ 30 ].
EFFECT OF THE POROSITY ON COMPRESSIVE PROPERTIES OF POROUS MATERIALS
1400 1200 1000 ~ .a !:: BOO " ... " Co SOO E f-" 400 200 0 0 100 200 300 400 soo SOO Time (min) Fig2 Time dependent temperature for heat-treatment The first, calculated the appropriate ratio of raw materials according to design the porosity, requirement
Advanced Applications of Porous Materials in …
Porous materials possess advantages such as rich pore structures, a large surface area, low relative density, high specific strength, and good breathability. They have broad prospects in the development of a high …
An extended Mori–Tanaka model for the elastic moduli of porous ...
As 4 wt. % [email protected] is dispersed in the polymer matrix, the loss factor (ratio of loss modulus to storage modulus) of the composite is above 0.09, and the maximum value can reach 0.156 ...
Hydrogen storage in polymer-based processable microporous …
Introduction Hydrogen is an attractive, potentially carbon-free energy carrier that is widely expected to play a significant role in a post-fossil fuel global economy. It has an exceptional gravimetric energy density (with a higher heating value of 142 MJ kg −1) and is abundantly available from water and biomass, but its low volumetric energy density at ambient conditions …
Nanostructured porous graphene and its composites for energy storage ...
Graphene, 2D atomic-layer of sp2 carbon, has attracted a great deal of interest for use in solar cells, LEDs, electronic skin, touchscreens, energy storage devices, and microelectronics. This is due to excellent properties of graphene, such as a high theoretical surface area, electrical conductivity, and mechanical strength. The fundamental structure of …
Establishment of the microstructure of porous materials and its ...
The porous fluid storage medium is a solid–liquid biphasic complex inspired by biological articular cartilage, which can self-compensate for lubrication by precipitating fluid …
Modeling of viscoelastic properties of nonpermeable porous rocks ...
This suggests that much of the dispersion of the storage Young''s modulus of the saturated sample with viscosity is strongly linked to that of the fluid dynamic shear modulus. Again, the modeled E′ is also slightly lower than the analytic predictions of CPA while both comfortably reside within the Hashin-Shtrikman lower and upper bounds.
Impact of Regular and Irregular Pore Distributions on the ...
The study results show that (1) irregular versus regular pore distribution has a significant effect on the effective Young''s modulus of porous materials, particularly at high …
VIBRATION DAMPING PROPERTIES OF POROUS MATERIALS …
Lucie Rouleau, Alain Guinault and Jean-Fran˘cois Deu 10-1 100 101 Frequency [Hz] 103 104 105 Storage and loss moduli [Pa] Melamine foam - Storage and loss modulus Sample 1 - T=-10oC Sample 2 - T=-10oC Sample 5 - T=-10oC Sample 1 - T=0oC Sample 2 ...
The Porosity-dependence of Bulk Modulus of Dry Porous Materials
By semi-analytical modifications to Mackenzie''s equation, a new third-order relation between bulk modulus and porosity is developed for porous materials. Compared with Mackenzie''s equation, …
The changing state of porous materials | Nature Materials
Porous materials contain regions of empty space into which guest molecules can be selectively adsorbed and sometimes chemically transformed. This has made them useful in …
Structure–Processing–Property Relationships of 3D …
(A) SEM images of samples with 33 and 73 vol % porosity. (B) Illustration of a porous material and FE analysis with representative closed-and open-cell RVEs. (C) Stress−strain curves of ASTM ...
The Porosity-dependence of Bulk Modulus of Dry Porous Materials
In addition, the proposed equation can describe the bulk modulus of porous materials with critical porosity well. However, Mackenzie''s equation cannot work. Discover the world''s research
A universal method to easily design tough and stretchable hydrogels
Hydrogels are soft materials that consist of physically or chemically cross-linked polymer networks and a large quantity of water. Hydrogels have a high water content and low elastic modulus (~100 ...
Elastic Storage of Aquifers, in: Flow through Porous Media …
PDF | On Jan 1, 1969, Arnold Verruijt published Elastic Storage of Aquifers, in: Flow through Porous Media (R.J.M. De Wiest, editor), Academic Press, New York, 1969 ...
Porous metal-organic frameworks for gas storage and separation: …
Metal-organic frameworks (MOFs), representing a novel class of porous materials, feature unique pore structure, such as exceptional porosity, tunable pore structures, …
Impact of Regular and Irregular Pore Distributions on the ...
Conventional analytical formulas for predicting the effective Young''s modulus of porous materials often rely on simplifying assumptions and do not explicitly incorporate microstructural information. This study investigates the impact of regular versus irregular pore distributions on the stiffness of porous materials using microstructure-free finite element …
Phase Behavior of NR/PMMA Semi-IPNs and Development of Porous …
Highly crosslinked elastic semi-IPN followed the storage modulus of PMMA after the glass transition as a result of certain degree of phase mixing and interlocked structure. It was shown that the morphology of the porous polymer network could be easily controlled by the proper choice of concentration and composition of crosslinking agent.
Revolutionizing thermal energy storage: An overview of porous …
According to the review by Liu et al., [12], porous materials for making composite PCM can be categorized into four groups: organic polymer materials, including polyethylene terephthalate, polymethyl methacrylate, polyaniline, and high-density polyethylene 2,, .