Method for manufacturing sintered body, structure, and composite structure
A method for manufacturing a sintered body, the method including heating a mixture that contains a plurality of particles of a metal oxide having a spinel-type structure, and a metal acetylacetonate under pressure at a temperature of from a melting point or higher of the metal acetylacetonate to 600° C. or lower, to form a sintered body that contains the metal oxide having the spinel-type structure.
1. A method for manufacturing a sintered body, the method comprising:
mixing a plurality of particles of at least one metal oxide having a spinel-type structure with at least one metal acetylacetonate to produce a mixture; and
heating the mixture in the presence of water or water vapor and under pressure and at a temperature of from a melting point or higher of the at least one metal acetylacetonate to 600° C. or lower,
wherein the water or water vapor is present in the mixture in an amount such that there is 20 wt % or less of water relative to a total weight of the plurality of particles of the at least one metal oxide having the spinel-type structure.
2. The method according to claim 1 , wherein the metal acetylacetonate contains a metal element that is the same as at least one metal element contained in the metal oxide.
3. The method according to claim 1 , wherein the mixture further contains at least one of a metal material, a resin material, or a carbon material.
4. The method according to claim 1 , wherein the metal oxide is ferrite.
5. The method according to claim 1 , wherein the metal oxide contains Ni and Mn.
6. The method according to claim 1 , wherein the metal oxide contains one or more of Li, Mg, Al, Cr, Mn, Fe, Co, Ni, Cu, and Zn.
7. The method according to claim 1 , wherein the pressure 1 MPa to 5000 MPa.
8. The method according to claim 1 , wherein the plurality of particles of the metal oxide include at least two particles having different average particle sizes.