Journal ArticleDOI
Reversibility and irreversibility in the packing of vibrated granular material
TLDR
In this article, the authors investigated the settling of loosely packed, cohesionless granular material under mechanical vibrations and showed how the occupied volume fraction can be optimized by slowly reducing the vibration intensity along the reversible branch.About:
This article is published in Powder Technology.The article was published on 1997-11-01. It has received 183 citations till now. The article focuses on the topics: Granular material & Sphere packing.read more
Citations
More filters
Journal ArticleDOI
Slow relaxation and compaction of granular systems.
TL;DR: The dynamics of compaction and its 'jamming' phenomena is focused on, outlining recent statistical mechanics approaches to describe it and their deep correspondence with thermal systems such as glass formers.
Journal ArticleDOI
Powder flowability and density ratios: the impact of granules packing
TL;DR: In this paper, a new flowability criterion based on a novel technique to determine a high packing density was proposed, which is more sensitive to differences in flowability, as quantified by the repose angle.
Journal ArticleDOI
Compaction dynamics of a granular medium under vertical tapping
Pierre Philippe,Daniel Bideau +1 more
TL;DR: In this paper, the authors report new experimental results on granular compaction under consecutive vertical taps and show that the evolution of the mean volume fraction and the mean potential energy of a granular packing presents a slow densification until a final steady state, and is reminiscent of usual relaxation in glasses via a stretched exponential law.
Journal ArticleDOI
Variations around disordered close packing
TL;DR: The most suitable paradigms and tools for investigating the structure of granular packings are reviewed and discussed in the light of some recent empirical results as discussed by the authors, which demonstrates the existence of clear relations between the geometrical structure and the packing density ρ.
PatentDOI
Specificity, Flexibility and Valence of DNA Bonds for Guided Emulsion Architecture
TL;DR: In this paper, a method of forming an end product by self-assembly of a first component having a patch of a linker component, such as DNA strands, cadherins, adhesive proteins and nanoparticle linkers, is presented.
References
More filters
Journal ArticleDOI
Granular solids, liquids, and gases
TL;DR: Granular materials are ubiquitous in the world around us as discussed by the authors and have properties that are different from those commonly associated with either solids, liquids, or gases, and some of the special properties of granular materials and describe recent research developments.
Journal ArticleDOI
Vibration-induced size separation in granular media: The convection connection.
TL;DR: This work has investigated the rise of a single large glass bead through a vibrated cylindrical column of smaller particles and found that vibration-induced size separation in this geometry arises from convective processes rather than from local rearrangements as had been proposed previously.
Journal ArticleDOI
Theory of powders
Sam F. Edwards,R.B.S. Oakeshott +1 more
TL;DR: In this paper, the authors show how statistical mechanics applies to powders, starting from the observations that powders have a large number of particles, and reproducible properties, and show that the volume of the powder plays the role of the energy in conventional statistical mechanics with the hypothesis that all states of a specified volume are equally probable.
Journal ArticleDOI
Density relaxation in a vibrated granular material
TL;DR: There appears to be a characteristic value of the acceleration that separates two regimes of packing behavior and the results are compared to current theories of compaction.
Book
Handbook of Powder Science & Technology
Muhammad E. Fayed,Lambert Otten +1 more
TL;DR: Particle size and shape characterization of fine powders and their application are discussed in detail in this paper, where the authors present a detailed analysis of the structural properties of powders.