The present disclosure relates to a method for the preparation of a precursor solution for a ceramic of the BZT-aBXT type wherein X is selected from Ca, Sn, Mn and Nb and a is a molar fraction selected in the range between 0.10 and 0.90 comprising the steps of: a) dissolving at least one barium precursor compound and at least one precursor compound selected from the group consisting of a calcium precursor compound, a tin precursor compound, a manganese precursor compound and a niobium precursor compound in a linear or branched anhydrous alkyl alcohol containing from 2 to 6 carbon atoms and, after dissolution, dehydrating by stripping, to obtain a first solution; b) dissolving at least one zirconium precursor compound and at least one titanium precursor compound in a linear or branched anhydrous alkyl alcohol containing from 2 to 6 carbon atoms in the presence of an anhydrous chelating agent to obtain a second solution; c) joining said first and second solutions in an anhydrous environment and dehydrating by stripping to obtain said precursor solution. It also relates to a precursor solution, to a method for the preparation of a film of a piezoelectric material, to a piezoelectric material and to an electronic device comprising this piezoelectric material.

A multilayer ceramic electronic component includes a ceramic body including a plurality of dielectric layers stacked on each other and having first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, parallel to a stacking direction and connected to the first and second surfaces, and fifth and sixth surfaces opposing each other in a third direction and connected to the first to fourth surfaces, first and second external electrodes disposed on the first and second surfaces of the ceramic body, respectively, first and second conductive thin films disposed on at least one of the third and fourth surfaces, connected to the first and second external electrodes, respectively, and having a thickness lower than that of the first and second external electrodes, and first and second solder preventing films disposed on the first and second external electrodes, respectively.

Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient, making them advantageous for applications that experience temperature changes and gradients. In particular, tantalum can be substituted into the crystal structure to improve properties. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.

The present disclosure is directed to using MXene compositions as templates for the deposition of oriented perovskite films, and compositions derived from such methods. Certain specific embodiments include methods preparing an oriented perovskite, perovskite-type, or perovskite-like film, the methods comprising: (a) depositing at least one perovskite, perovskite-type, or perovskite-like composition or precursor composition using chemical vapor deposition (CVD), physical vapor deposition (PVD), or atomic layer deposition (ALD) onto a film or layer of a MXene composition supported on a substrate to form a layered composition or precursor composition; and either (b) (1) heat treating or annealing the layered precursor composition to form a layered perovskite-type structure comprising at least one oriented perovskite, perovskite-type, or perovskite-like composition; or (2) annealing the layered composition; or (3) both (1) and (2).

A sodium niobate-barium titanate-based coating liquid composition including: (a) a sol-gel raw material containing (i) a niobium component, such as a niobium alkoxide, (ii) a sodium component, such as a sodium alkoxide, (iii) a titanium component, such as a titanium alkoxide, and (iv) a barium component, such as a barium alkoxide; and (b) a compound including at least one kind selected from the group consisting of a β-ketoester compound and a β-diketone compound represented by the following formula (1): ##STR00001## where R.sub.1 represents an alkyl group having 1 or more to 6 or less carbon atoms.

Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.

A composite structure including a conductor region that is configured from a first oxide, and an insulator region that is configured from a second oxide and that surrounds the conductor region, wherein the first oxide and the second oxide are in hetero structure with each other. A powder and a fired body each having such a composite structure are also preferable.

A method of manufacturing a multilayer ceramic electronic component includes: preparing a dielectric magnetic composition including base material powder particles including BaTi.sub.2O.sub.5 or (Ba.sub.(1-x)Ca.sub.x)Ti.sub.2O.sub.5 (0≤x≤0.1), the base material powder particles having surfaces coated with one or more of Mg, Mn, V, Ba, Si, Al and a rare earth metal; preparing ceramic green sheets using dielectric slurry including the dielectric magnetic composition; applying an internal electrode paste to the ceramic green sheets; preparing a green sheet laminate by stacking the ceramic green sheets to which the internal electrode paste is applied; and preparing a ceramic body including dielectric layers and a plurality of first and second internal electrodes arranged to face each other with each of the dielectric layers interposed therebetween by sintering the green sheet laminate.

Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient, making them advantageous for applications that experience temperature changes and gradients. In particular, tantalum can be substituted into the crystal structure to improve properties. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.

Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient, making them advantageous for applications that experience temperature changes and gradients. In particular, tantalum can be substituted into the crystal structure to improve properties. Embodiments of the material can be useful for radiofrequency applications such as resonators and antennas.