rheology

New model clarifies rheological properties of bentonite muds mixed with other clays during drilling operations

By Lisa McDonald / July 8, 2022

During borehole drilling operations, bentonite-based drilling mud mixes with excavated soil materials, which may drastically affect the mud’s rheological properties. Researchers in France developed a phenomenological model to quantify the yield stress of bentonite muds mixed with other clays.

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Necessary roughness: Engineering particle surfaces to control how cements and other suspended materials flow

By April Gocha / May 4, 2018

Researchers from ETH Zurich have created a library of silicate particles and precisely studied how the surface roughness of particles affects the viscosity and thickening behavior of suspensions of those particles.

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Learn five factors that control suspension rheology in ACerS short course

By Faye Oney / March 16, 2018

Learn how to troubleshoot and solve suspension rheology problems in ACerS short course “Dispersion and Rheology Control for Improved Ceramic Processing” at Ceramics Expo. Register before March 29 for a special rate.

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NIST team wins 80M hours of supercomputer time for concrete rheometer study

By Eileen De Guire / December 6, 2013

A NIST team has been awarded 40 million hours of computer time per year for two years to support the study of the design of rheometers for large-particle dense suspensions such as concrete.

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Ceramics and glass business news of the week

By Eileen De Guire / February 21, 2013

Here is what we are hearing: Around the world of ceramics in eight minutes: CeramTec launches additional international websites In a concerted campaign, the CeramTec Group has launched sites in…

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Oodles of Oobleck

By / April 9, 2009

A classic experiment/weird experience in materials science, rheology, shear stress, strain rate, non-Newtonian fluid mechanics – and gooey fun: the Oobleck Run, AKA (with a great deal of hyperbole) “walking on water.”

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