SUBJECT

Cohesion

Publications on cohesive forces in powders, their measurement, and their effects on flow, agglomeration, storage, and processing behavior.

PUBLICATIONS

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Explore PTI articles, Insights, Know How, and technical publications related to this subject.

  • Industrial cyclone separator used for cyclone cut size classification of powder fines
    10 October 2026

    Cyclone Separation of Fine Powders: Cut Size, Efficiency Curves, and Agglomeration

    The classical cyclone cut size model assumes discrete, non-agglomerating particles. Cohesive or moisture-sensitive fines can travel through a cyclone as agglomerates instead, which changes what a PSD result actually tells you about classifier performance.

    Feature Article

  • Wood powder bridging above the outlet of a stainless-steel hopper
    3 October 2026

    Wood Powder Feeding Problems: Separating Moisture Effects From Particle Interlocking

    Wood powder can bridge because fibrous particles mechanically interlock, because moisture increases [...]

    Feature Article

  • Technical hero image for a PowderTechnology.info Monthly Know-How on Hausner Ratio and Carr Index, showing two graduated cylinders with loose and tapped powder, three different powder mechanism backgrounds, the Hausner Ratio and Carr Index formulas, a workflow from result to next test, and a reference to an included practical interpretation guide.
    4 July 2026

    Hausner Ratio and Carr Index: What the Numbers Tell You and Where They Break Down

    Both the Hausner Ratio and Carr Index reduce bulk and tapped density to a single number. The mechanism behind that number, whether aeration, particle shape, or surface cohesion, determines whether it supports a process decision or actively misleads one.

    Know How

  • Close view of mixed industrial powder with visible size contrast, suggesting flow and segregation behavior
    25 October 2025

    The Dictators of Powder Behavior: A practical guide to powder behavior control in production

    Powder behavior control starts with fifteen core factors. Tune particle size, shape, [...]

    Feature Article

  • Catalytic hot spots in powders shown by a lab setup with a Karl Fischer titrator, a weigh boat of powder, and a microbalance on a clean bench.
    20 September 2025

    Catalytic Hot Spots in Powders: Small Regions, Big Consequences

    Catalytic hot spots in powders often determine stability. Detect them early with [...]

    Insights

  • Dry electrode battery manufacturing line with powder handling equipment and automated feeders.
    9 August 2025

    Dry Electrode Battery Manufacturing: Powder Rules for Modern Factories

    Dry electrode battery manufacturing demands tighter powder control. Flow, moisture, and morphology [...]

    Feature Article

  • Photorealistic image showing a powder sample undergoing high-speed mixing or compression testing, with visible instrumentation capturing thermal or mechanical responses.
    19 July 2025

    Energetic States and Chemical Dynamics in Powder Systems

    Energetic states in powder systems depend on more than material composition. Internal [...]

    Feature Article

  • Powder Flow and Flowability Testing
    1 April 2025

    The Ultimate Guide to Powder Flow and Flowability Testing

    Powder flowability is critical to efficiency, quality, and safety in industries like [...]

    Feature Article

  • Powder Technology Guide
    15 March 2025

    The Ultimate Guide to Powder Technology

    Powder technology is the backbone of precision manufacturing and process optimization. Industries [...]

    Feature Article

  • Advanced Powder Characterization
    2 March 2025

    Advanced Powder Characterization Techniques

    In this article, we will take a glance at the Advanced Powder Characterization [...]

    Insights

  • Sand In Construction
    26 January 2025

    Sand in the Construction Industry: The Unsung Hero

    Table of Content It’s easy to overlook sand, yet [...]

    Feature Article

  • Processing Techniques Involving Liquids and Gases (Part 3)
    8 December 2024

    Processing Techniques Involving Liquids and Gases (Part 3)

    Table of Contents: In this third article in the [...]

    Feature Article