Abstract: Disclosed herein is a multilayer sintered ceramic body comprising at least one first layer comprising poly crystalline YAG, wherein the at least one first layer comprising poly crystalline YAG comprises pores wherein the pores have a maximum size of from 0.1 to 5 ?m, at least one second layer comprising alumina and zirconia wherein the zirconia comprises at least one of stabilized and partially stabilized zirconia, and at least one third layer comprising at least one of YAG, alumina, and zirconia, wherein an absolute value of the difference in coefficient of thermal expansion (CTE) between the at least one first, second and third layers is from 0 to 0.75×10-6/° C. as measured in accordance with ASTM E228-17, wherein the at least one first, second and third layers form a unitary, multilayer sintered ceramic body. Methods of making are also disclosed.