Antioxidants in green ceramic bodies containing various oils for improved firing

A method of making porous ceramic bodies, the method comprising:

• mixing at least one mineral oil, at least one antioxidant, and one or more ceramic ingredients or inorganic ceramic-forming ingredients to form a first batch mixture;
• extruding the first batch mixture to form a first green body;
• mixing at least one mineral oil, at least one antioxidant, and one or more ceramic ingredients or inorganic ceramic-forming ingredients to form a second batch mixture;
• extruding the second batch mixture to form a second green body;
• firing the first green honeycomb body in a kiln according to a first firing cycle for a first total firing time sufficient to produce a first porous ceramic body;
• firing the second green honeycomb body in a kiln according to a second firing cycle for a second total firing time sufficient to produce a second porous ceramic body;
• wherein the first and second green honeycomb bodies differ in composition, size, and/or geometry of the respective green body;
• wherein the amount of antioxidant included in each respective batch mixture is selected such that the thermal peak responses of the respective batch mixtures are aligned with each other.

A method of making porous ceramic bodies, the method comprising:

• mixing at least one mineral oil, at least one antioxidant, and one or more ceramic ingredients or inorganic ceramic-forming ingredients to form a first batch mixture;
• extruding the first batch mixture to form a first green body;
• mixing at least one mineral oil, at least one antioxidant, and one or more ceramic ingredients or inorganic ceramic-forming ingredients to form a second batch mixture;
• extruding the second batch mixture to form a second green body;
• firing the first green honeycomb body in a kiln according to a first firing cycle for a first total firing time sufficient to produce a first porous ceramic body;
• firing the second green honeycomb body in a kiln according to a second firing cycle for a second total firing time sufficient to produce a second porous ceramic body;
• wherein the first and second green honeycomb bodies differ in composition, size, and/or geometry of the respective green body;
• wherein the amount of antioxidant included in each respective batch mixture is selected such that a timing of a first thermal event of the respective batch mixtures occurring in the respective firing cycles are adjusted.