| abstract |
The present invention relates to a method of forming a composite structure, which methodn n n (1) providing a first and a second sintered body comprising first and second multicomponent metal oxides having first and second identical crystal structures, which are gray titanium or fluorite structures;n n n (2) providing a bonding material comprising at least one metal oxide, wherein the at least one metal oxide is (a) the same IUPAC periodic table group as at least one sintered body metal in one of the (i) multicomponent metal oxides. At least one metal of and / or (ii) a first row D-block transition metal not included in the multicomponent metal oxides and / or (iii) a lanthanide not included in the multicomponent metal oxides; (b) does not comprise a metal contained in the first multicomponent metal oxide and the second multicomponent metal oxide; (c) does not contain cations of boron, silicon, germanium, tin, lead, arsenic, antimony, phosphorus and tellurium; And (d) has a melting point lower than the sintering temperature of the sintered bodies; Andn n n (3) heating to a junction temperature above the melting point and below the sintering temperaturen n n It includes. |