agglomerate

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agglomerate

a rock consisting of angular fragments of volcanic lava

agglomerate

[ə′gläm·ə·rət]
(geology)
A pyroclastic rock composed of angular rock fragments in a matrix of volcanic ash; typically occurs in volcanic vents.
(metallurgy)
A rigid mass of metallic particles that have been joined together by a powder metallurgical technique, such as sintering.
References in periodicals archive ?
The parameters measured in the samples were mean particle size and agglomerates density.
Agglomerates are formed through the adhesion or cohesion of smaller primary particles.
Thus, in many laser diffraction methods, the results reflect the size of the primary particles, but agglomerates are not detected, as they are dispersed by adding pressure, ultrasound or stirring.
The research was carried out to investigate the fluidization behavior of silver oxide nanoparticle agglomerates to present approaches to reduce the amount of particle agglomeration during the fluidization process through the two viewpoints of laboratorial scale and computational fluid dynamics (CFD) simulation.
During consumer use, nanomaterials can be released and enter the respiratory system as free nanoparticles, nanoparticle agglomerates, and nanoparticles within or attached to larger particks.
Because of the averaging process of using many small granules, it is imperative that agglomerates and microagglomerates are made from cork that has been cleaned in some way.
If the viscosity is too low, it will splash around and the increased particle spacing may prevent shear forces from breaking up the agglomerates.
In general, aggregates and agglomerates have lower circularity than primary particles, and can be distinguished from them on this basis.
Its 20-mesh scalping screen removes foreign products and oversize agglomerates.
1] afford information on micrometer-size agglomerates in samples.
STEPHEN WARD: Design Consultant, Focal Point2Basic agglomerates These man-made marbles are a mix of different-sized stones fused together with a wax resin and are available in many colours.
Application: This study shows that clay and stickies can form neutral-buoyancy agglomerates that cannot be removed by centrifugal cleaners.