scholarly journals Attractive particle interaction forces and packing density of fine glass powders

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Eric J. R. Parteli ◽  
Jochen Schmidt ◽  
Christina Blümel ◽  
Karl-Ernst Wirth ◽  
Wolfgang Peukert ◽  
...  
Keyword(s):  
Packing Density ◽  
Particle Interaction ◽  
Interaction Forces ◽  
Fine Glass ◽  
Glass Powders

How the particle interaction forces determine soil water infiltration: Specific ion effects

2019 ◽  
Vol 568 ◽  
pp. 492-500 ◽  
Author(s):  
Wuquan Ding ◽  
Xinmin Liu ◽  
Feinan Hu ◽  
Hualing Zhu ◽  
Yaxue Luo ◽  
...  
Keyword(s):  
Soil Water ◽  
Particle Interaction ◽  
Water Infiltration ◽  
Interaction Forces ◽  
Specific Ion Effects ◽  
Soil Water Infiltration ◽  
Ion Effects

Nanodesigning of Multifunctional Ceramic Composites

1989 ◽  
Vol 175 ◽  
Author(s):  
J. Liu ◽  
M. Sarikaya ◽  
W. Y. Shih ◽  
W.-H. Shih ◽  
I. A. Aksay
Keyword(s):  
Packing Density ◽  
Binary Systems ◽  
Bond Formation ◽  
Particle Interaction ◽  
Ceramic Composites ◽  
Point Of View ◽  
Primary Concern ◽  
Multicomponent Systems ◽  
Fundamental Point ◽  
Component Systems

AbstractNanodesigning of multifunctional ceramic composites with colloids is discussed from a fundamental point of view. We start with one-component systems, where packing density is the primary concern. Then we extend the discussion to binary systems and deal with the problem of homogeneity. We show that the structure is controlled by the nature of bonding between the particles and by the particle-particle interaction. Surfactants are used to modiy these properties, by, first, protecting the active particle surfaces to prevent solid bond formation, and, second, altering the interparticle interaction to provide a “lubricating” effect. In weakly attractive multicomponent systems, not only are we able to achieve high-density packing through restructuring, but we can also control the scale of homogeneity.

Particle Interaction Forces Induce Soil Particle Transport during Rainfall

2013 ◽  
Vol 77 (5) ◽  
pp. 1563-1571 ◽  
Author(s):  
Song Li ◽  
Hang Li ◽  
Chen-Yang Xu ◽  
Xue-Ru Huang ◽  
De-Ti Xie ◽  
...  
Keyword(s):  
Particle Transport ◽  
Particle Interaction ◽  
Soil Particle ◽  
Interaction Forces

scholarly journals Modeling SAOS Yield Stress of Cement Suspensions: Microstructure-Based Computational Approach

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2769
Author(s):  
Neven Ukrainczyk ◽  
Mareike Thiedeitz ◽  
Thomas Kränkel ◽  
Eddie Koenders ◽  
Christoph Gehlen
Keyword(s):  
Yield Stress ◽  
Critical Strain ◽  
Van Der Waals ◽  
Particle Interaction ◽  
High Sensitivity ◽  
Salient Feature ◽  
Model Parameters ◽  
Mathematical Tool ◽  
Interaction Forces ◽  
Small Amplitude Oscillatory Shear

Two static yield stress models, one known as YODEL and the newly proposed BreakPro, based on inter-particle bond breaking probability, were employed to comparatively simulate the yield stress of cement suspensions, induced by oscillatory rheological tests with small amplitude oscillatory shear (SAOS). This yield stress occurs at a critical strain in the order of 0.01%, and is commonly attributed to the limit of the linear viscoelastic domain, where attractive forces bridge the cement particles and form a flocculated particle network. YODEL is based on van der Waals (vdW) interaction forces to describe the yield stress for flow onset at a critical strain of a few percent, developed for simple non-reactive particulate suspensions. However, due to the high pH and reactivity of cementitious suspensions, their particle interaction forces are much higher than vdW. Therefore, until now, the YODEL adaptations to cementitious suspensions did not explicitly consider the microstructural-based salient feature of the original model, but used it as an implicit fitting parameter to scale the average attractive force. In this paper, the force is inversely estimated using the full power of the two microstructural-based models, presenting a new mathematical tool for investigating the fragility of the rigid percolated structure of cement suspensions. The model parameters were calibrated on measured yield stresses obtained by SAOS measurements in a high-sensitivity rheometer. The estimated forces were found to be 5.57 (BreakPro) and 1.43 (YODEL) times higher than typical van der Waals forces. The YODEL percolation threshold of 21% turned out to be significantly lower than the one found by the BreakPro model (37%). This indicated that BreakPro modeling assumptions are better suited for the description of yield stress at SAOS critical strain than the YODEL model.

Bioactive glass-ceramic scaffolds by additive manufacturing and sinter-crystallization of fine glass powders

2018 ◽  
Vol 33 (14) ◽  
pp. 1960-1971 ◽  
Author(s):  
Hamada Elsayed ◽  
Andrea Zocca ◽  
Johanna Schmidt ◽  
Jens Günster ◽  
Paolo Colombo ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Bioactive Glass ◽  
Glass Ceramic ◽  
Fine Glass ◽  
Image Position ◽  
Glass Powders

Abstract

AFM measurements of Hofmeister effects on clay mineral particle interaction forces

2020 ◽  
Vol 186 ◽  
pp. 105443
Author(s):  
Bo Feng ◽  
Hanyi Liu ◽  
Yingli Li ◽  
Xinmin Liu ◽  
Rui Tian ◽  
...  
Keyword(s):  
Clay Mineral ◽  
Particle Interaction ◽  
Mineral Particle ◽  
Interaction Forces
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