Particle Behaviour

A change of supplier can lead to physical changes in the behaviour of a chemically identical material, resulting in significant changes in the manufacturing process and final product.

Background

A customer approached RSSL with a production issue which became apparent when a raw material supplier was changed.


Approach

Analysis of the raw material by scanning electron microscopy revealed that the nature of the particle structure in the powder was different with the new supplier's ingredient versus the original.

In the handling of powders the role of particle shape, size and structure can have implications on their behaviour. A change of supplier can lead to physical changes in the behaviour of a chemically identical material, resulting in significant changes in the manufacturing process and final product.


Results

The impact of the supplier change on various stages of the production process was then understood. The customer was able to mitigate through tighter control of incoming ingredients and the process.


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