John A. Gaydos

Associate Professor

• B.A.Sc., M.A.Sc., Ph.D., University of Toronto
• 2194 Mackenzie, Carleton University
• 1125 Colonel By Drive, Ottawa, ON, K1S 5B6
• Email John A. Gaydos
• 613-520-2600 ext 8282

Research Interests:

• Wetting, spreading and coating behaviour of liquids
• Surface thermodynamics and theory of capillarity
• Low Reynold’s number fluid mechanics (e.g., creep flows)
• Behaviour of thin films, surfactants, bilayers and two-dimensional solids
• Continuum thermodynamics

Research

Capillarity and surface fluid mechanics applied to measurement techniques for liquid-fluid surface tension and interfacial energy; contact angle and line tension on patterned surfaces; application of semiconductor fabrication processes to microfluidic device research and development.

Application

Surface phenomena (e.g. soap bubbles) are easy to generate but difficult to explain because of the molecular forces at the interface. Modeling of these surface effects is important in nano-technology and the miniaturization of many devices. There are numerous applications.

Chapters in Books 
J. Gaydos and A.W. Neumann, Thermodynamics of Simple Axisymmetric Capillary Systems, in: “Applied Surface Thermodynamics,” 2 nd. ed., (A.W. Neumann, R. David and Y. Zuo eds.), Chap. 2, pp. 49-106, CRC Press, Boca Raton, FL (2011).

J. Gaydos, Y. Rotenberg, P. Chen, L. Boruvka and A.W. Neumann, Outline of the Generalized Theory of Capillarity, in: “Applied Surface Thermodynamics,” 2 nd. ed., (A.W. Neumann, R. David and Y. Zuo eds.), Chap. 1, pp. 1-48, CRC Press, Boca Raton, FL (2011).