A microscopic view on complex systems in flow

August 14 2017, 9am – 5pm

Burwood Corporate Centre, Deakin University

Soft materials may be stretched and deformed or squeezed and sheared. These simple manipulations of matter are important as they generically represent many everyday operations (e.g. squeezing tooth-paste, washing hair with shampoo); industrial scale processes (e.g. dispersion and dewatering of fibres to make paper, crystallisation of flowing fluids; manufacture of processed foods and personal care products); technological innovation (e.g. smart fluids, novel biopolymer materials); and physiological functioning (e.g. joint which should flex and bear load for the lifetime of its owner, lubrication of the mouth during chewing; the response of living tissue to shear). Understanding at the microscopic level helps scientists and engineers understand the molecular scale functioning of materials, control rheology or use shear to produce new types of materials.

Deakin University is hosting a workshop for researchers and students who are interested in the relationship between the microscopic structure and dynamics and the bulk rheological studies of soft matter systems.  The workshop will introduce important tools which allow a microscopic and statistical structural understanding of material’s response to shear through with an interaction with light, x-rays and neutrons. The analysis of scattering experiments provides a unique perspective, a microscopic view, during these processes. The aim would initiate some discussions among the community of scientists and engineers who deal with rheology and complex fluids into how to best utilise those current scattering facilities both at the Australian Centre for Neutron Scattering and at the Australian Synchrotron, and to provide direction for facilities’ development.  The speakers include those involved with instrument and facility development; and experimentalists. 

The workshop will explore various scattering techniques – X-rays, neutrons, light – combined with rheological measurements for understanding the dynamics and structural effects in complex fluids under shear. As well giving a perspective on these important tools, the workshop will provide a forum for collaborative for developments to enable cutting edge perspectives for Australasian Scientists.

We look forward to your participation, the organising committee:

Chris Garvey, Wren Greene, Rico Tabor, Yacine Hemar

Getting there:

Details of Deakin Corporate Centre may be found here.

The 75 tram is convenient.  Here is a route map

The Program:

8.30 am Registration

9.00 am Welcome and introduction

9.30 am Dr François Boué (INRA and CEA, France) – What you could see of anisotropic spatial correlation using SANS-SAXS for deformed systems.

10.15 am Dr Anna Sokolova (ANSTO) – RheoSANS at the Australian Centre for Neutron Scattering

10.45 am Morning Tea

11.15 am Dr Nigel Kirby (Australian Synchrotron)

11.45 am Associate Professor Patrick Spicer (University of New South Wales) – Beyond parallel plate geometry

12.15 pm Associate Professor Yacine Hemar (University of Auckland) – Diffusing wave spectroscopy under shear

12.45 pm Susanne Seibt (University of Bayreuth) – How Microfluidics forces Particles to Self-assembly – a Rheo-optical Study

1.05 pm Lunch & Poster session (sponsored by MEP Instruments)

2.30 pm Professor Ravi Jagadeeshan (Monash University) – Stretch-relaxation of DNA molecules in semidilute solutions

3.00 pm Dr Shane Usher (University of Melbourne) – Densification of polymer flocculated aggregates

3.30 pm Dr Laurence Brassart (Monash University) Modelling diffusion coupled to large deformations in soft materials

4.00 pm Afternoon Tea

4.30 pm Dr Gleb Yakubov (University of Queensland) – Gel formation and self-assembly in complex bottle-brush arabinoxylan polysaccharides

5.00 pm Ralph Hartii (Paul Scherrer Institute) – Sub-pixel correlation length neutron imaging of sedimentation: Spatially resolved scattering information of microstructures on a macroscopic scale

There will be an opportunity for poster presentations – please contact the organisers. 

Sponsors

Australian Colloid and Interface Society

Deakin University

Australian Society of Rheology

MEP Instruments

For more information contact: Dr Chris Garvey – cjg@ansto.gov.au or Dr Wren Greene – wren.greene@deakin.edu.au

Registration: free (but strictly limited places) via email