A metal treatment composition including Tin (II) Chloride and processed
montmorillonite clay. The addition of Tin (II) Chloride to the
composition provides Tin for forming a ceramic-metal layer on the
surfaces of the friction pair. Tin (II) Chloride provides Chlorine ions
for forming Chloric films for protecting juvenile surfaces which form in
the friction zone. The clay is heated and pulverized to produce a powder
comprising both particles having crystalline layer structure and salts
and oxides. The layered crystalline structure of the clay contains slip
planes that transversely shift when tangential pressure from the friction
pair is applied thereby lubricating the friction pair. The salts and
oxides contribute to the formation of the ceramic-metal layer.