Frictional Adhesion of Metal to Glass, Quartz, and Ceramic Surfaces

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Abstract
In 1947 W. A. Wooster and G. L. McDonald reported that titanium would adhere by frictional contact to glass, certain mineral, and ceramic surfaces. In order to explore this property further small disks of a number of different metals, mounted separately on one‐eighth‐inch shafts driven by a high‐speed hand‐grinder, were applied to glass, quartz, and ceramic surfaces. By suitably varying the rpm of the motor and the pressure of application, the metal of the disks could be made to adhere securely to such surfaces. At higher rpm erosion of the glass surfaces usually occurred. Variations of the technique of application allowed either the metallic coating or the cutting of glass. Some of the metals tested were titanium, zirconium, aluminum, magnesium, gold, silver, copper, iron, nickel, cobalt, cadmium, zinc, and lead.

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