Research Interest
- Structure and dynamics of Colloidal Glasses and Gels
- Soft Matter
- Rheology of Complex Fluids
- Polymer Science and Engineering, Polymer Nanocomposites
Education
- B.E. University of Pune, 1996
- Ph.D. IIT-Bombay, Mumbai; National Chemical Laboratory, Pune 2001
- Post Doctoral Research, Benjamin Levich Institute for Physico-Chemical Hydrodynamics, New York, 2001-2004
Research Overview
Our group is interested in understanding physical behavior and dynamics of structured fluids.
We combine expertise from Chemical Engineering, Physics, Chemistry and Materials Science to
understand molecular phenomena that is responsible for the flow behavior. Major thrust area
of our group is to understand ageing and effect of deformation on the variety of soft glassy
materials such as concentrated suspensions, glassy polymers and polymer nanocomposites. Common
theme in all these systems is their jammed state wherein primary entity (particle or molecular
segment) is physically arrested due to overall crowding of constituents. In such state, system
explores only a small part of the phase space thereby leading to a glassy behavior. Recently we
showed that how rheological characterization can give profound insight into the ageing of colloidal
glasses compared to that of colloidal gels. We also investigated effect of deformation on the ageing
suspensions and how influence of the same on relaxation dynamics can be used to predict long time
rheological behavior of these materials. We are also involved in understanding rheological behavior
of discotic nematic suspensions, particularly their intriguing flow behaviors that are industrially
very important.
Awards
- J C Bose Fellowship (2023) of Science and Engineering Research Board, Department of Science and Technology, Government of India
- Fellow, Indian Academy of Sciences (2023)
- Fellow, Indian National Science Academy (2022)
- Fellow of the Society of Rheology, US (SoR) (2022)
- Academy excellence award of the Defense Research and Development Organization (2019)
- Distinguished Teacher Award of IIT Kanpur (2018)
- Fellow, National Academy of Sciences, India (2017)
- Fellow, Indian National Academy Engineering (2016)
- Prof. C.V.Seshadri Chair Professor, IIT Kanpur (2015-2018)
- Shanti Swarup Bhatnagar Award in Engineering Sciences (2015)
- P.K. Kelkar Fellowship, IIT Kanpur (2013-2016)
- INSA Medal for Young Scientist (2006)
Publications
- S Mittal, YM Joshi, S Shanbhag, Harmonic Balance for Differential Constitutive Models under Oscillatory Shear, arXiv:2403.05971, (2024).
- A Kumar, V Kumar, YM Joshi, MK Singh, Tribological and Rheological Study of Thixotropic Gels of 2D Nanoparticles, Langmuir, 40, 14, 7310–7327 (2024).
- S Mittal, YM Joshi, S Shanbhag, Can numerical methods compete with analytical solutions of linear constitutive models for large amplitude oscillatory shear flow?, Rheologica Acta, 63, 2, 145-155 (2024).
- YM Joshi, S Patel, K Suman, Aqueous Laponite® dispersions are attractive gels, not repulsive Wigner glasses: A critical commentary, J. Rheol., 68, 145–152 (2024).
- T Bhattacharyya, CS Palla, DH Dethe, YM Joshi, Rheological investigation of the network structure in mixed gels of Kappa and Iota Carrageenan, Food Hydrocolloids, 146, Part B, 109298 (2024).
- S Mittal, YM Joshi, S Shanbhag, The Method of Harmonic Balance for the Giesekus Model under Oscillatory Shear, Journal of Non-Newtonian Fluid Mechanics , 321, 105092 (2023).
- T Bhattacharyya, CS Palla, DH Dethe, YM Joshi, Rheological investigation of the network structure in mixed gels of Kappa and Iota Carrageenan, arxiv.org/abs/2309,12896 (2023).
- H Heinz, YM Joshi, H Zeng, HK Tsao, SJA de Beer, E Koos, A Takahara, GC Walker, Highlights in Interface Science and Engineering: A Collection of Virtual Special Issues, Langmuir, 39 (31), 10711-10714 (2023).
- T Bhattacharyya, AR Jacob, G Petekidis, YM Joshi, On the nature of flow curve and categorization of thixotropic yield stress materials, Journal of Rheology, 67 (2), 461-477 (2023).
- S Sharma, YM Joshi, V Shankar, Transient shear banding during startup flow: Insights from nonlinear simulations, arXiv preprint , (2023).
- K Suman, S Shanbhag, YM Joshi, Large amplitude oscillatory shear study of a colloidal gel near the critical state, The Journal of Chemical Physics , 158 (5) (2023).
- T Bhattacharyya, K Suman, YM Joshi, Gel-sol transition of thermoresponsive poly (vinyl alcohol) solution: Validation of the universal critical scaling relations, Physics of Fluids, 35 (2) (2023).
- S Sharma, V Shankar, YM Joshi, Viscoelasticity and rheological hysteresis, Journal of Rheology, 67 (1), 139-155 (2023).
