Your needs: to perform flowability measurements of ceramic powders according to ISO 14629
Control the fluidity of your ceramic powders by measuring flowability according to ISO 14629
The flowability of a ceramic powder is a crucial parameter for many industrial processes: filling, compression, sintering, and additive manufacturing. Poor flowability can lead to production defects, batch variability, or implementation difficulties.
At the FILAB laboratory, we perform powder flowability measurements according to ISO 14629 to evaluate the flow behavior of granular materials and optimize their use in industrial processes.
The importance of the ISO 14629 standard
ISO 14629 specifies a rigorous method for determining the flowability of ready-to-use ceramic powders (granulated or atomized). Unlike other, more generic powder tests, it is specifically calibrated for the requirements of the ceramics industry.
It allows for the evaluation of:
- Flow time: the speed at which a defined volume passes through a standardized orifice.
- Flow consistency: to predict the powder's behavior in the hoppers of automated presses.
- Filling ability: to guarantee a consistent mass from part to part.
ISO 14629: a macroscopic and kinetic approach
ISO 14629 does not describe a specific analytical technique. It is an instrumental physical method based on powder rheology.
The standard relies on the use of a calibrated mechanical device (often called a Hall or Carney funnel, although ISO 14629 specifies its own orifice dimensions).
- The instrument: a conical funnel with a 60° angle and a 5 mm outlet orifice (or 2.5 mm depending on the flowability).
- The measurement: the individual shape of the grains is not considered, but rather the collective behavior of the powder mass. The flow time of a given quantity of powder (often 50 g) through the orifice is measured.
The FILAB laboratory assists you with flowability testing according to ISO 14629
Why measure the flowability of a powder according to ISO 14629?
The flow properties of a powder directly influence the performance of industrial processes.
Flowability measurement allows, in particular, for:
- evaluating the ease of flow of a powder
- identifying risks of agglomeration or blockage
- controlling the quality and reproducibility of batches
- optimizing manufacturing or shaping processes
- comparing different formulations or raw material suppliers
This characterization is particularly important for powders used in the processing or manufacturing of technical parts.
Our other powder flowability measurement services
Our FAQ
Flowability refers to a powder's ability to flow freely and consistently as individual particles. More specifically, the analysis involves measuring the time it takes for a quantity of powder to flow through a funnel calibrated according to standardized norms. The FILAB laboratory performs flowability testing on all types of powders.
ISO 14629 describes a test method for evaluating the flow rate of ceramic powders through a standardized funnel.
The test involves measuring the time it takes for a defined mass of powder to flow through a calibrated orifice. The result determines the flow rate, typically expressed in grams per second.
The flowability test according to ISO 14629 primarily concerns technical powders used in various sectors:
- technical ceramics
- powder metallurgy
- additive manufacturing
- chemical industry
- pharmaceutical industry
- cosmetics
In these industries, the flowability of powders directly influences the performance of the processing methods.
If the powder does not flow by gravity, it is classified as "non-flowing" according to ISO 14629. This often occurs with very fine (submicron) or very moist powders. In this case, we can assist you in improving the flowability.
To ensure reproducibility, the test must be performed in a controlled environment. Humidity is the critical factor: a damp powder does not flow as well. We stabilize the samples in terms of temperature and humidity before each measurement, in accordance with the standard's requirements.
You will receive the average flow time (expressed in seconds for 50g), as well as observations on the regularity of the flow.
To obtain a quote, you can contact our team via our contact form, by phone, or by email.
Simply tell us your requirements (type of material, desired analysis, applicable standards, urgency, quantity of samples, etc.). We will then send you a personalized technical and pricing proposal within 24-48 hours.
Turnaround times vary depending on the nature of the analysis and the complexity of the expert assessment project.
However, FILAB is committed to providing fast turnaround times tailored to your industrial constraints and urgent needs.
