Properties of Fe2O3 coating on polymer substrate by ion beam mixing

A polyphenylene sulfide (PPS) substrate is coated with Fe2O3 by ion beam mixing, and the properties of the Fe2O3 coating are investigated. The adhesion of the Fe2O3 coating to the polymer substrate is sufficiently strong, and therefore, the coating is not delaminated even at a high frequency of 20,000 Hz. The adhesion strength is evaluated by vibrating the polymer substrate at high frequencies. X-ray diffraction experiments reveal that the Fe2O3 coating is amorphous. In addition, a cross-sectional scanning electron microscope image shows that the Fe2O3 coating has a columnar structure.