Patent · US Active

Magnesium oxide based dielectric ceramics with ultrahigh dielectric breakdown strength and its preparation method

US11299427B2 · kind B2 · utility

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2References

2Claims

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Assignee

SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

Xianlin Dong · Shanghai, CN
Chi Zhang · Kunshan, CN
Ying Chen · Shanghai, CN

Key dates

Filing date	Mar 18, 2020
Grant date	Apr 12, 2022
Priority date	—
Expiry date	Mar 18, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/87
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present application relates to a magnesium oxide based dielectric ceramics with ultrahigh dielectric breakdown strength and a preparation method thereof. The composition of the magnesium oxide based dielectric ceramic material comprises: (1−x)MgO—xAl2O3, wherein 0<x≤0.12 and x is a mole percentage. The material has a specific composite structure with magnesium aluminate spinel acting as a second phase surrounding a principal crystalline phase, MgO.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.