SUBJECT

Flowability

Publications on powder flow, flowability testing, cohesive behavior, and the material and process factors that influence reliable handling and discharge.

PUBLICATIONS

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

  • Operator checking a high humidity display near stacked powder bags, illustrating how humidity spikes powder flow in storage areas.
    22 November 2025

    When Humidity Spikes Hit Your Powder Flow

    Average conditions rarely tell the full story. Short humidity spikes can change [...]

    Insights

  • Technician testing incoming powder in a small hopper beside printed certificates of analysis in a lab.
    22 November 2025

    Powder Certificate of Analysis vs Reality: Why Incoming Tests Matter

    A powder certificate of analysis (CoA) confirms identity and basic properties, but [...]

    Feature Article

  • Flowing powder in a stainless vessel forming an S shape, illustrating the powder plateau S-phrase
    8 November 2025

    Powder Plateau S Curve: How to Win When Physics Limits You

    The powder plateau S-curve explains why progress is incremental and why expectations [...]

    Feature Article

  • Powder quality fingerprint lab setup with sieve stack, tap density cylinder, Faraday cup, microscope, and powder jar on a clean bench.
    8 November 2025

    Build a Powder Quality “Fingerprint” in 7 Days

    You can prevent most production surprises by tracking six simple powder markers. [...]

    Insights

  • Technician preparing a representative powder sample in a clean lab environment
    1 November 2025

    Representative Powder Sampling a practical guide and overview

    Representative powder sampling starts at the process, not in the lab. Always [...]

    Know How

  • Caked white powder with fresh granules pouring from a metal chute in a dark lab setting.
    1 November 2025

    Powder Caking Prevention: Causes, Testing Methods, and Proven Fixes

    Powder caking can be predicted and, in most cases, prevented. It follows [...]

    Feature Article

  • Angle of repose and flowability: infographic comparing a poured cone with ring shear, wall friction, and timed discharge tests.
    1 November 2025

    Angle of Repose Is Not a Flowability Test

    The angle of repose and flowability are related, not equal. Use the [...]

    Insights

  • 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

  • Square hero showing a powder segregation test with two bottles filled via funnels, one fast and one slow, each cored for top-middle-bottom sampling.
    4 October 2025

    Powder Segregation Test: The 20 Minute Bottle Method

    Most blend failures start with segregation during transfer. Run a 20 minute [...]

    Insights

  • Square hero illustrating powder creep mechanisms: granular creep in a hopper and diffusion creep in a tensile frame.
    4 October 2025

    Powder and Granular Creep: Mechanisms, Testing, and Control

    Powder creep mechanisms occur in various ways; powders creep in bins. Sintered [...]

    Feature Article

  • Laboratory ring shear tester and FT4 powder rheometer measuring powder flow test methods.
    1 October 2025

    Selecting and Comparing Powder Flow Test Methods (including PDF guides)

    No single flow test defines powder behaviour completely. Each method measures different [...]

    Know How

  • Square hero image illustrating hidden charge peaks in powder flows with localized hotspots.
    27 September 2025

    Hidden Charge Peaks in Powder Flows: Measure What is missed

    Do not accept a safe net charge as proof of safety. Find [...]

    Insights