Core-shell ceramic particulate and method of making

A core-shell ceramic particulate comprising:

• a core particulate structure comprising a plurality of primary particulates and a plurality of primary pores disposed between the primary particulates;
• and
• a shell at least partially enclosing the core particulate structure;
• wherein each of the primary particulates comprises a plurality of secondary particulates comprising yttria stabilized zirconia and a plurality of secondary pores disposed between the secondary particulates;
• and
• wherein the shell comprises a plurality of tertiary particulates comprising lanthanum ferrite and a plurality of tertiary pores disposed between the tertiary particulates.

A core-shell ceramic particulate comprising:

• a core particulate structure comprising a plurality of primary particulates and a plurality of primary pores disposed between the primary particulates, wherein each of the primary particulates comprises a plurality of secondary particulates and a plurality of secondary pores disposed between the secondary particulates;
• and
• a shell at least partially enclosing the core particulate structure, wherein the shell comprises a plurality of tertiary particulates and a plurality of tertiary pores disposed between the tertiary particulates;
• wherein the core-shell particulate structure further comprises a plurality of the tertiary particulates disposed to substantially enclose at least one of the secondary particulates and to substantially enclose at least one of the primary particulates.

An article comprising:

• a plurality of core-shell ceramic particulates, wherein the core-shell ceramic particulate comprises a core particulate structure comprising a plurality of primary particulates and a plurality of primary pores disposed between the primary particulates;
• and
• a shell at least partially enclosing the core particulate structure;
• wherein each of the primary particulates comprises a plurality of secondary particulates and a plurality of secondary pores disposed between the secondary particulates;
• and
• wherein the shell comprises a plurality of tertiary particulates and a plurality of tertiary pores disposed between the tertiary particulates.