Abstract
	A study of the phase boundary between the metallic and vitreous phase showed that the intermediate layer upon which mutual adhesion depends, consists of glass-metallic cluster complexes. Experimental work showed that, during heat treatment, physically chemical reactions controlled by heat transfer occur at the phase boundary, resulting in the creation of a transient adhesive intermediate layer. The adhesive force is primarily provided by metals of the transient group which constitute the centres of poly-nuclear cluster complex compounds.