A ceramic electronic component includes a multilayer chip having a substantially rectangular parallelepiped shape and including a first multilayer structure and a second multilayer structure disposed on each of top and bottom faces of the first multilayer structure, the first multilayer structure including first ceramic dielectric layers having a first width in a first direction in which side faces of the multilayer chip are opposite to each other, the second multilayer structure including second internal electrode layers having a second width less than the first width in the first direction, and a pair of external electrodes formed from the respective two edge faces to at least one of side faces of the multilayer chip, wherein main components of the first and second internal electrode layers differ from a main component of the external electrodes.

A semiconductive ceramic member according to the present disclosure contains a plurality of aluminum oxide crystal grains, and a plurality of titanium oxide crystal grains. The total content of aluminum oxide and titanium oxide is 99% by mass or more per 100% by mass of all constituents. The content of the aluminum oxide is 86% by mass or more and 96% by mass or less and the content of the titanium oxide is 4% by mass or more and 14% by mass or less per 100% by mass of the aluminum oxide and the titanium oxide in total. A peak of TiO.sub.x (0<x<2) is present within a binding energy range of 456 eV to 462 eV (both inclusive) in X-ray photoelectron spectroscopy measurement. The semiconductive ceramic member further contains silicon, and the content of the silicon in terms of its oxide in a first region is larger than the content of the silicon in terms of its oxide in a grain boundary.

A method of manufacturing a multilayer ceramic capacitor includes: forming a multilayer body by alternately stacking a green sheet and a conductive paste for forming an internal electrode layer, the green sheet being mainly composed of a ceramic material having a perovskite structure that includes Ca and Zr and is expressed by a general expression ABO.sub.3 and containing an alkali metal, the conductive paste being mainly composed of Cu, containing a ceramic co-material and no alkali metal; and baking the multilayer body to obtain a ceramic multilayer body.

A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided, the dielectric ceramic composition includes a BaTiO.sub.3-based base material main component and a subcomponent, wherein the subcomponent includes zinc oxide (ZnO) as a first subcomponent, and the content of the ZnO is 0.1 mol % or more and less than 0.4 mol % with respect to 100 mol % of the base material main component.

A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided. The dielectric ceramic composition includes a BaTiO.sub.3-based base material main ingredient and an accessory ingredient, where the accessory ingredient includes dysprosium (Dy) and niobium (Nb) as first accessory ingredients. A total content of the Dy and Nb is greater than 0.2 mol and less than or equal to 1.5 mol based on 100 mol of titanium (Ti) of the base material main ingredient.

A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided. The dielectric ceramic composition includes a BaTiO.sub.3-based base material main ingredient and an accessory ingredient, where the accessory ingredient includes dysprosium (Dy) and niobium (Nb) as first accessory ingredients. A total content of the Dy and Nb is less than or equal to 1.5 mol, based on 100 mol of Ti of the base material main ingredient, and a content of the Dy satisfies 0.7 mol<Dy<1.1 mol, based on 100 mol of Ti of the base material main ingredient.

The present disclosure discloses a nanoporous ceramic for an atomization core, and a preparation method thereof. The nanoporous ceramic includes: nano-silica 1 to 60 parts, a ceramic powder 10 to 80 parts, a pore-forming agent 1 to 50 parts, and a sintering additive 1 to 40 parts. The preparation method includes: (1) weighing raw materials, and mixing and ball-milling the raw materials in a ball mill; (2) bake-drying the ball-milled raw materials to obtain a dried mixed powder; (3) adding the dried mixed powder to molten paraffin under stirring, and continuously stirring a resulting mixture to obtain a paraffin slurry; (4) injecting the paraffin slurry into a mold, cooling the mold for forming, and performing demolding to obtain a paraffin mold; (5) preheating the paraffin mold for paraffin removal to obtain a paraffin-removed sample; and (6) sintering and cooling the paraffin-removed sample to obtain the nanoporous ceramic.

A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided. The dielectric ceramic composition includes a BaTiO.sub.3-based base material main ingredient and an accessory ingredient, where the accessory ingredient includes dysprosium (Dy) and niobium (Nb) as first accessory ingredients. A total content of the Dy and Nb is greater than 0.2 mol and less than or equal to 1.5 mol based on 100 mol of titanium (Ti) of the base material main ingredient.

A manufacturing method of a dielectric ceramic composition includes attaching a reactive functional group to a surface of a base material powder particle of a perovskite structure.

A dielectric composition includes dielectric particles. At least one of the dielectric particles include a main phase and a secondary phase. The main phase has a main component of barium titanate. The secondary phase exists inside the main phase and has a higher barium content than the main phase.