Porous ceramic structure

US10611696B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10611696-B2
Application numberUS-201815869611-A
CountryUS
Kind codeB2
Filing dateJan 12, 2018
Priority dateJul 16, 2015
Publication dateApr 7, 2020
Grant dateApr 7, 2020

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A porous ceramic structure has a porous ceramic aggregate configured from a plurality of porous ceramic particles, and the ratio of the number of corners at locations where two other porous ceramic particles are facing a corner of a porous ceramic particle with respect to the number of corners of the porous ceramic particles included in the porous ceramic aggregate is 80% or greater.

First claim

Opening claim text (preview).

What is claimed is: 1. A porous ceramic structure comprising: a porous ceramic aggregate including at least a plurality of porous ceramic particles, wherein a percentage of the number of corners at places where a corner of a porous ceramic particle faces two other porous ceramic particles with respect to the number of corners of the porous ceramic particles contained in the porous ceramic aggregate is 80% or more, wherein the porous ceramic particles have an average pore diameter of less than or equal to 500 nm, wherein a thermal conductivity of the porous ceramic particles is less than 1.5 W/mK, and wherein a heat capacity of the porous ceramic particles is less than or equal to 1000 kJ/m 3 K. 2. The porous ceramic structure according to claim 1 , wherein Na /( Nz−Ne )×100(%)≥80(%) where Nz is a total number of corners of all the porous ceramic particles contained in the porous ceramic aggregate, Na is the number of corners at places where a corner of a porous ceramic particle faces two other porous ceramic particles within the porous ceramic aggregate, and Ne is the number of corners located on a peripheral portion of the porous ceramic aggregate. 3. The porous ceramic structure according to claim 2 , wherein Na /( Nz−Ne )×100(%)≥90(%). 4. The porous ceramic structure according to claim 1 , comprising: one sheet; and the porous ceramic aggregate bonded on the sheet. 5. The porous ceramic structure according to claim 1 , wherein a porosity of the porous ceramic particles is 20% to 99%.

Assignees

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Classifications

  • Zirconia, hafnia, zirconates or hafnates · CPC title

  • Thermal properties, e.g. thermal expansion coefficient · CPC title

  • Macromolecular compounds (C04B38/062 takes precedence) · CPC title

  • Tape casting, e.g. with a doctor blade · CPC title

  • Treatment time · CPC title

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What does patent US10611696B2 cover?
A porous ceramic structure has a porous ceramic aggregate configured from a plurality of porous ceramic particles, and the ratio of the number of corners at locations where two other porous ceramic particles are facing a corner of a porous ceramic particle with respect to the number of corners of the porous ceramic particles included in the porous ceramic aggregate is 80% or greater.
Who is the assignee on this patent?
Ngk Insulators Ltd
What technology area does this patent fall under?
Primary CPC classification C04B38/085. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 07 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).