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Perovskite powder and its preparation method and multilayer ceramic electronic component

A perovskite and powder technology, applied in the field of perovskite powder and its preparation and multi-layer ceramic electronic components, can solve the problems of wide distribution, hindered dispersion, unsatisfactory particle shape of perovskite powder, etc.

Active Publication Date: 2017-04-12
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

Method used

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  • Perovskite powder and its preparation method and multilayer ceramic electronic component
  • Perovskite powder and its preparation method and multilayer ceramic electronic component
  • Perovskite powder and its preparation method and multilayer ceramic electronic component

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Embodiment Construction

[0036] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the shapes and dimensions of components may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like components.

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

[0039] The perovskite powder is not particularly limited, but, for example, includes those...

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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 priority from Patent Application No. 10-2011-0103194 filed with the Korean Intellectual Property Office on Oct. 10, 2011, the contents of which are incorporated herein by reference. technical field [0003] The invention relates to a perovskite powder with high crystallinity particles, a preparation method thereof, and a multilayer ceramic electronic component prepared by using the perovskite powder. Background technique [0004] Perovskite powders are ferroelectric ceramic materials used in electronic components such as multilayer ceramic capacitors (MLCCs), ceramic filters, piezoelectric elements, ferroelectric memories, thermistors and pressure sensitive The raw material of the resistor. [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 trend ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/12H01G4/30C04B35/628C04B35/468C04B35/49C04B35/462C04B35/505C04B35/50
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