The preparation of slag fiber and its application in heat resistant friction composites

In this study, a fiber-blowing process was utilized to prepare mineral fibers from water-quenched slags to raise the additional value of the recycled slag. Based on their excellent physical and thermal properties, slag fibers were added into a phenol–formaldehyde matrix followed by thermal curing to produce slag fiber-based composites. The friction and wear tests were applied to evaluate the tribological performance of the slag fiber-based composites. Although the optimum process parameters are still under investigation, however, it appeared that slag fiber prepared by this study shows its potential for use in frictional composites based on our results.