Dielectric composition, dielectric element, electronic component and multi-layer electronic component

A method for providing a dielectric composition, the method comprising:

• providing starting material powders of bismuth oxide (Bi2O3), sodium carbonate (Na2CO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2), wherein the starting material powders are weighed out such that the dielectric composition has a perovskite crystal structure containing at least Bi, Na, Sr and Ti, at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn, and specific particles having a core-shell structure that has at least one core portion including SrTiO3, and wherein 0.20≤α≤0.70, where a is a ratio of a number of specific particles with respect to a total number of particles contained in the dielectric composition, and wherein 0.92≤β≤3.00, where β is a molar ratio of Sr with respect to Na in the dielectric composition;
• wet-mixing the weighed starting material powders;
• obtaining a calcined powder by calcining the mixture;
• adding a binder to the calcined powder thereby forming a paste;
• moulding the paste thereby forming a moulded article;
• and
• baking the moulded article.