12 Questions
Which property of product granules can be characterized by unconfined yield stress and angle of friction by shear cell tests?
Bulk density
What method is commonly used to assess the tensile strength of agglomerates based on the text?
Crushing strength measurement
What does the Griffith crack theory state regarding brittle failure of a granule?
Cracks propagate when potential energy reduction equals surface energy increase
In the context of agglomerates, what effect do high compaction pressures have according to the text?
Enhance short-range forces
What factor is largely associated with the health hazard imposed by asbestos?
Shape and size of the particles
Which type of process can cause agglomeration of particles even in a static fluid due to Brownian movement?
Perikinetic Process
What gives medicated pellets or pills the required strength during their formation?
Binder in the particulate matter
In disperse systems, what type of forces operate independently and decrease exponentially with distance across the ionic double-layer?
Double-layer repulsive forces
What is the main purpose of spraying liquid on the surface of a bed in order to aid agglomeration?
Increase the bulk density of the agglomerates
How are larger, denser, and stronger agglomerates typically produced in a pan agglomerator compared to a drum agglomerator?
By achieving a preferentially longer retention time for fines
What is the effect of high compaction forces on materials in terms of producing sheets, briquettes, or tablets?
Improves the strength of the products
How does heating materials aid in agglomeration processes?
Increases the true density of the agglomerates
Learn about the mechanical interlocking and short-range forces involved in testing the strength of compressed agglomerates. Explore methods to measure crushing strength and understand how compaction pressures affect interparticle contacts.
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