Abstract: A method of bonding two crystals together is disclosed. A bond enhancing material such as chromium (Cr) is vapor deposited on one crystal, and on this is vapor deposited a noble metal such as gold (Au). On the other crystal a low melting point metal such as tin (Sn) or indium (In) is vapor deposited. In the case of In this can either be directly on the crystal or on a layer of bond enhancing material; in the case of Sn this must be on a bond enhancing material. On top of the low melting point metal a layer of the same noble metal is deposited to prevent oxidation thereof. The noble metal layers are brought into contact with each other in vacuum or inert atmosphere and pressure applied thereto at a temperature of 100.degree. C to 150.degree. C in the case of In and 100.degree. C to 200.degree. C in the case of Sn. The low melting point metal will diffuse into the noble metals and across the interface causing a bond to form by elimination of the boundary between the crystals.

Abstract: A substantially plastic ladder chain is made continuous by affixing the exposed metallic cable ends thereof to a master coupling link of stainless steel or like material. The exposed metallic cable ends of the plastic ladder chain comprising plural braided cable also of stainless steel or like material are fastened in such a way to separate master cross links, of the aforementioned master coupling link, by master link side lock pins of brass or like material so as to form substantially a molecular bond. The master cross links are then connected together in a conventional manner by master link retainer clamps and master link retainer clips, thus forming the continuous ladder chain.