Rheometry


Rheometry refers to the experimental technique used to determine the rheological properties of materials; rheology being defined as the study of the flow and deformation of matter which describes the interrelation between force, deformation and time. The term rheology originates from the Greek words ‘rheo’ translating as ‘flow’ and ‘logia’ meaning ‘the study of’, although as from the definition above, rheology is as much about the deformation of solid-like materials as it is about the flow of liquid-like materials and in particular deals with the behavior of complex viscoelastic materials that show properties of both solids and liquids in response to force, deformation and time.

Published 4 Oct 2018

Using creep testing to determine viscoelastic information quickly and easily

The most common approach for measuring time-dependent viscoelastic properties of a material on a rotational rheometer is to perform small amplitude oscillatory shear (SAOS) over a range of oscillation frequencies – commonly referred to as a frequency sweep – where…READ MORE >

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Published 25 Sep 2018

Asphalt, asphalt binder, asphalt cement or bitumen?

So, which is it? I get asked this simple question more and more with the increased interest in Superpave. Superpave (SUperior PERforming Asphalt PAVEments) was developed by the Strategic Highway Research Program (SHRP) in the United States to help improve performance,…READ MORE >

Published 20 Jun 2018

Smoothie Wars! Which blends the best?

Here at Malvern Panalytical, we seem to enjoy testing the rheological properties of drinks, particularly those of the alcoholic variety! John Duffy and Steve Carrington looked into the differences between traditional ales and they explored the properties of Guinness. Any excuse…READ MORE >

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Published 30 Jan 2018

Pittcon 2018 Short Courses – Early Bird Deadline Approaching

We will be attending Pittcon 2018 in Orlando, Florida Feb 26th – Mar 1st and once again we are pleased to feature a number of our recognized characterization experts who will be presenting a variety of short courses throughout the week….READ MORE >

Published 17 Jan 2018

Présentation de travaux sur les inhomogénéités dans les écoulements de suspensions concentrées

Lors du 52ème Congrès du Groupe Français de Rhéologie (GFR), Guillaume Ovarlez (Directeur de recherche au CNRS, Laboratoire du Futur CNRS-Solvay, Pessac, France) a reçu le prix Maurice Couette et présenté ses travaux sur les inhomogénéités dans les écoulements de…READ MORE >

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