Aggregation kinetics of carbonyl iron based magnetic suspensions in 2D Shahrivar, Keshvad Carreón González, Elizabeth Morillas Medina, José Rafael Vicente Álvarez-Manzaneda, Juan De This work was supported by MAT 2016-78778-R, MAT 2013- 44429-R and PCIN-2015-051 projects (MINECO and FEDER, Spain; H2020, UE) and by Junta de Andalucía P11-FQM-7074 project (Spain). EC-G acknowledges the financial support by CONACYT (Ref #232347). JRM acknowledges the financial support by the ‘‘Ministerio de Educación: Becas del Programa de Formación del Profesorado Universitario (FPU)’’ (FPU14/01576). We investigate the (irreversible) two-dimensional aggregation kinetics of dilute non-Brownian magnetic suspensions in rectangular microchannels using video-microscopy, image analysis and particle-level dynamics simulations. Special emphasis is given to carbonyl iron suspensions that are of interest in the formulation of magnetorheological fluids. The results are compared to non-Brownian suspensions of magnetic latexes. We demonstrate that both suspensions follow a deterministic aggregation process. Furthermore, experimental and simulation aggregation curves can be collapsed onto a master curve when using the appropriate scaling time (pl1 f2D2.5) as a function of only two dimensionless numbers: the lambda ratio (l) and the particle surface fraction (f2D). 2026-02-23T10:57:09Z 2026-02-23T10:57:09Z 2017 journal article Shahrivar K, Carreón-González E, Morillas JR, de Vicente J. (2017). Aggregation kinetics of carbonyl iron based magnetic suspensions in 2D. Soft Matter; 13 (14): 2677-2685. doi: 10.1039/c7sm00075h 1744-683X 1744-6848 https://hdl.handle.net/10481/111381 10.1039/C7SM00075H eng embargoed access Royal Society of Chemistry