@inproceedings{d32ae2501818460db22957d696548efb,
title = "Determination of the Physical Properties of Oil Sands Components using Scanning Probe Microscopy",
abstract = "Atomic force microscopy is employed to study the structural changes in the morphology and physical characteristics of asphaltene aggregates as a function of temperature. The exotic fractal structure obtained by evaporation-driven asphaltene aggregates shows an interesting dynamics for a large range of temperatures from 25°C to 80°C. The changes in the topography, surface potential and adhesion are unnoticeable until 70°C. However, a significant change in the dynamics and material properties is displayed in the range of 70°C - 80°C, during which the aspahltene aggregates acquire 'liquid-like' mobility and fuse together. This behaviour is attributed to the transition from the pure amorphous phase to a crystalline liquid phase which occurs at approximately 70°C as shown by using Differential Scanning Calorimetry (DSC). Additionally, the charged nature of asphaltenes and bitumen is also explored using kelvin probe microscopy. Such observations can lead to the development of a rational approach to the fundamental understanding of asphaltene aggregation dynamics and may help in devising novel techniques for the handling and separation of asphaltene aggregates using dielectrophoretic methods.",
author = "Ravi Gaikwad and Tinu Abraham and Aharnish Hande and Fatemeh Bakhtiari and Siddhartha Das and Thomas Thundat",
note = "Publisher Copyright: {\textcopyright} 2015 Materials Research Society.; 2014 MRS Fall Meeting ; Conference date: 30-11-2014 Through 05-12-2014",
year = "2016",
doi = "10.1557/opl.2015.258",
language = "English",
series = "Materials Research Society Symposium Proceedings",
publisher = "Materials Research Society",
pages = "69--74",
editor = "Yunseok Kim and Dongsheng Li and Ali Passian and Rozaliya Barabash and Ulrich Lienert and Vassilia Zorba and Klaus-Dieter Liss and Klaus-Dieter Liss and Masato Ohnuma and Renato Zenobi and Arda Genc and Aude Lereu and Olga Ovchinnikova and Benning, \{Liane G.\} and Rimer, \{Jeffrey D.\} and Laurene Tetard and Thomas Thundat",
booktitle = "State-of-the-Art Developments in Materials Characterization",
}