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Perovskite powder, fabricating method thereof and multi-layer ceramic electronic parts fabricated by using the same

A technology of electronic components and multilayer ceramics, which is applied in the field of perovskite powder and its preparation and multilayer ceramic electronic components, and can solve problems such as agglomeration, hindrance to dispersion, and wide distribution

Active Publication Date: 2013-04-10
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Therefore, the disadvantages are the unsatisfactory shape of the synthesized perovskite powder particles, the wide distribution of average particle size, and the possibility of agglomeration due to heat treatment, which hinders dispersion

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  • Perovskite powder, fabricating method thereof and multi-layer ceramic electronic parts fabricated by using the same
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Embodiment Construction

[0036] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0037] However, the present invention can be expressed in many different forms and should not be interpreted as being limited to the embodiment set here. More precisely, these embodiments are provided in order to disclose the present invention thoroughly and completely, and to fully convey the scope of the present invention to those skilled in the art. In the drawings, for clarity, the shapes and sizes of components may be enlarged, and the same reference numbers are used throughout the text to designate the same or similar components.

[0038] The perovskite powder according to the embodiment of the present invention has a coating formed on the surface of the perovskite powder particles, and the coating is selected from one or more of the group consisting of sulfides and sulfur-containing salts. Kind.

[0039] The perovskite powder is not particul...

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Abstract

The invention provides perovskite powder, a fabricating method thereof and multi-layer ceramic electronic parts fabricated by using the same. The perovskite powder comprises a coating layer formed on the surface of the perovskite powder particles. The coating layer is formed by one or a plurality of groups among groups formed by sulfides and salts having sulphur. When the perovskite powder is synthesized by means of a hydrothermal synthesis method, the perovskite powder can have particles with high degree of crystallinity to inhibit the growth of particles through forming one or multiple coating layers selected from sulfide and salt having sulphur.

Description

[0001] Cross references to related applications [0002] This application claims the priority of patent application No. 10-2011-0103194 filed to the Korean Intellectual Property Office on October 10, 2011, and the content of this application is incorporated into this application for reference. Technical field [0003] The invention relates to a perovskite powder with high crystallinity particles and a preparation method thereof, and a multilayer ceramic electronic component prepared by using the perovskite powder. Background technique [0004] Perovskite powder is a ferroelectric ceramic material used as electronic components such as multilayer ceramic capacitors (MLCC), ceramic filters, piezoelectric elements, ferroelectric memories, thermistors and varistors Raw material for resistors. [0005] Barium titanate (BaTiO 3 ) Is a high dielectric material with a perovskite structure and is used as a dielectric material for multilayer ceramic capacitors. [0006] According to the recent t...

Claims

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Application Information

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IPC IPC(8): C04B35/628C04B35/468C04B35/49C04B35/462C04B35/505C04B35/50H01G4/12H01G4/30
CPCC04B35/468C04B35/48C04B35/547C04B2235/768H01G4/30
Inventor 全炯俊崔畅学刘正勋金昶勋朴今珍白惠英
Owner SAMSUNG ELECTRO MECHANICS CO LTD