Uniaxial Powder Tester
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Description
The Uniaxial Powder Tester (UPT) is a stand-alone uniaxial shear tester for simple, sensitive and cost effective powder characterisation. The instrument delivers repeatable and reliable measurements, providing a robust alternative to traditional powder testing techniques. Uniaxial testing first involves the construction of a consolidated powder column. This is then removed from its confining sleeve before being fractured through the application of a vertical stress, directly measuring the uniaxial Unconfined Yield Strength (uUYS). This technique can therefore be used to assess and rank powder flowability. Cohesive powders have relatively strong inter-particular forces, which encourage the particles to bond together rather than moving easily relative to one another. By contrast, in non-cohesive powders, the tensile forces between particles tend to be much weaker. Uniaxial powder testing is a direct and reliable method for measuring the uUYS and Flow Function of powders.
Key Differences
Benefits of the Uniaxial Powder Tester:
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Direct uUYS (σc) and Flow Function (FF) measurements
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Fast
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Repeatable
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Low Cost
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Versatile
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Easy to use
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Intuitive, easy to interpret results
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Robust
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Bespoke software
Technical Specification
The UPT's level of automation and low operator input means the instrument delivers highly repeatable data.
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Uniaxial Consolidation Stress Range: 0-100kPa
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Normal stress - resolution : 0/3 Pa
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Double ended consolidation : +
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Uniaxial unconfined yield strength (uUYS) - measurement: +
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Real time stress display/ Piston position display: +
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Sample mass- measurement: +
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Compressibility(%): +
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Height / Diameter ratio of consolidated sample: 1.25-1.5
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Data logging:+
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Data export: +
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Report generation: +
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Instrument Dimensions: 310x321x647mm
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