Table of Contents
Journal of Metallurgy
Volume 2014, Article ID 387046, 14 pages
http://dx.doi.org/10.1155/2014/387046
Review Article

Progress in Wettability Study of Reactive Systems

Department of Mechanical Engineering, Concordia University, 1455 de Maisonneuve Boulevard West, Montreal, QC, Canada H3G 1M8

Received 1 December 2013; Revised 29 January 2014; Accepted 30 January 2014; Published 12 March 2014

Academic Editor: Sunghak Lee

Copyright © 2014 Bolarinwa Komolafe and Mamoun Medraj. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A review of various factors affecting wetting and spreading has been presented. Various methods for wettability studies and critical issues concerning contact angle measurement are discussed. Reactive wetting has been given a special attention in the paper and recent developments in this area are summarized and discussed. Although advanced understanding of nonreactive wetting is currently available in the literature, complete understanding of reactive wetting is still lacking due to the complexity of the phenomenon. To date, there is no single model that is generally applicable to all reactive wetting systems. Reaction between the liquid drop and substrate can take the form of dissolution, intermetallic formation, or combination of both processes. Factors affecting wettability have been summarized and discussed as well as the major available techniques to investigate wetting behaviour.