1. ABOUT THE DATASET -------------------- Title: Manuscript data - Yield stress modification Creator(s): Olivia Pickup, David Harbottle Organisation(s): University of Leeds Rights-holder(s):Unless otherwise stated, Copyright 2024 University of Leeds Publication Year: 2024 Description: This dataset is part of a publication that provides insight into the use of nanoparticle additives for yield stress reduction in concentrated suspensions of highly aggregated, irregularly shaped particles of magnesium hydroxide (Mg(OH)2). The dataset includes raw data from rheological tests of suspensions to indicate the use of SiO2 as a successful yield stress modifier. Further analysis using X-ray computed tomography, quartz crystal microbalance, differential scanning calorimetry and UV-visible spectrophotometry shows the effects of aging time on the yield stress modification in this system. Cite as: Pickup, Olivia and Harbottle, David (2024) Dataset for 'Yield stress modification of suspensions of irregularly shaped particles by addition of spherical colloidal silica'. University of Leeds. Manuscript data - Yield stress modification https://doi.org/10.5518/1517 Related publication: O.Pickup, L.Turpin, V.Kachkanov, R.Mitchell, M.Barnes, A.Lockwood, T.Hunter, D.Harbottle, Yield stress modification of suspensions of irregularly shaped particles by addition of spherical colloidal silica, Colloids abd Surfaces A: Physicochemical and Engineering Aspects, 2024; (Accepted) Contact: D.Harbottle@leeds.ac.uk 2. TERMS OF USE --------------- Copyright 2024, University of Leeds This dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/. 3. PROJECT AND FUNDING INFORMATION ---------------------------------- Title: EPSRC Centre for Doctoral Training in Nuclear Energy – GREEN (Growing skills for Reliable Economic Energy from Nuclear) Dates: April 2019 - September 2027 Funding organisation: EPSRC Grant no.: EP/S022295/1 Acknowledgements: This project was in collaboration with Sellafield Ltd, who the authors greatly acknowledge for their technical input and financial support of this work. We would also like to acknowledge the allocation of the synchrotron X-ray beamtime at the Diamond-Manchester Imaging beamline (I13-2) at the Diamond Light Source, UK (MG32814). Authors acknowledge the University of Sheffield Tomography Centre (STC) funding from EPSRC (EP/T006390/1). 4. CONTENTS ----------- File listing Raw data-for DOI-Fig 2-6+S2-S4.xlxs Figure data separated in tabs within spreadsheet Figure 2 - shear stress vs shear rate rheology flow curve Figure 3 - SiO2 cluster volume histogram data Figure 4 - Yield stress vs aging time summary Figure 5 - Quartz crystal microbalance (QCM) data for Mg(OH)2:SiO2, Mg(OH)2 and water Figure 6 - SiO2 concentration calibration curve and DSC/TGA thermal analysis data for 3 days, 1 month and 6 month samples Figure S2 - Zeta potential vs pH data for SiO2 and Mg(OH)2 Figure S3 - Particle size distribution for SiO2 and Mg(OH)2 Figure S4 - Calibration curve for dissolved SiO2 concentration 5. METHODS ---------- Detailed Materials and Methods section is available in the associated article.