Ceramic bodies are bonded together via a layer of an oxidation reaction product of a molten metal, which metal is present in one or both of the ceramic bodies prior to bonding. At least one of the ceramic bodies comprises a ceramic product formed by the oxidation reaction of molten parent metal (e.g.,...http://www.google.es/patents/US5238886?utm_source=gb-gplus-sharePatente US5238886 - Surface bonding of ceramic bodies