Structure, laminated body thereof, and manufacturing method and manufacturing device thereof

Patent metadata

Field	Value
Publication number	US-2020157690-A1
Application number	US-202016751941-A
Country	US
Kind code	A1
Filing date	Jan 24, 2020
Priority date	Jul 26, 2017
Publication date	May 21, 2020
Grant date	—

Abstract

A problem to be solved by the present invention is that there is no method for forming a dense structure on a porous structure at low cost. In addition, another object is to provide a high quality and inexpensive structure of a brittle material and a laminate thereof as an intermediate layer for facilitating formation of a dense structure on a porous structure. A structure is provided having a brittle particle assembly having a plurality of brittle particles, wherein the brittle particle assemblies are arranged adjacently to each other, and the brittle particles having a brittle material region in the periphery are crosslinked (connected) by the brittle material region to bond the brittle particles to each other, and thereby form a brittle material crosslinked structure region preventing the mobility of the brittle particles.

First claim

What is claimed is:

1 . A structure comprising:
a brittle particle assembly having a plurality of brittle particles, wherein the brittle particle assemblies are arranged adjacently to each other, and the brittle particles having a brittle material region in the periphery are crosslinked by the brittle material region to bond the brittle particles to each other, and thereby form a brittle material crosslinked structure region preventing the mobility of the brittle particles, and the structure has a compressive residual stress.

2 . The structure according to claim 1 , wherein the brittle material crosslinked structure region has a three-dimensional network structure between the brittle particles.

3 . The structure according to claim 1 , wherein the brittle material crosslinked structure region is mainly amorphous.

4 . The structure according to claim 1 , wherein the brittle material crosslinked structure region is substantially uniform on the brittle particle surface.

5 . The structure according to claim 1 , wherein the brittle material crosslinked structure region is arranged with a gap.

6 . The structure according to claim 1 , wherein a thickness of the brittle material crosslinked structure region is 100 nm or less

7 . The structure according to claim 1 , wherein the brittle material crosslinked structure region is formed from the same element as the constituent element of the brittle particle.

8 . The structure according to claim 1 , wherein the size of the brittle particles is less than 5 μm.

9 . The structure according to claim 1 , wherein the hardness of the structure is 0.1 or more and less than 1 with respect to the hardness of the brittle particles.

10 . A laminated structure comprising:
the structure according to any one of claim 1 arranged on a base material.

11 . The laminated structure according to claim 10 , wherein the brittle particles are flat in a direction perpendicular to the base material.

12 . The laminated structure according to claim 10 , wherein the base material is a porous body.

13 . The laminated structure according to claim 11 , wherein the brittle particles have a crystal size after deformation of 1 nm or more and 300 nm or less.

14 . The laminated structure according to claim 11 , wherein the structure has the following relationship 0.02<internal compression stress/Vickers hardness.

15 . The laminated structure according to claim 11 , wherein a value of a short side/long side of the brittle particles becomes a value of the brittle particles in an interface vicinity of the base material>a value of the brittle particles in the surface vicinity of the laminated structure.

16 . The laminated structure according to claim 11 , wherein the laminated structure has a withstand voltage of 20 kV/mm or more.

17 . A manufacturing method of a laminated structure comprising:
crushing agglomerated particles in which primary particles in brittle particles of a raw material are agglomerated into primary particles; activating a surface of the primary particles at a temperature range equal to or lower than a melting point of the primary particles under a reduced pressure atmosphere to generate an active region; ejecting the primary particles arranged with a plurality of the active regions to the base material; and joining the primary particles arranged with the plurality of active regions via the active region.

18 . The manufacturing method of the laminated structure according to claim 17 , wherein an active region is formed on the primary particle surface by a collision crushing effect of the primary particles and a thermal effect of a plasma.

19 . A manufacturing device of a structure comprising:
an aerosol generator, a crusher, vacuum pump, a plasma generator and a nozzle connected to the plasma generator: wherein the crusher is arranged at a front stage of the plasma generator, the crusher crushes agglomerated particles sent from the aerosol generator in which primary particles are agglomerated, and the crusher sends the primary particles to the plasma generator, a surface of the primary particles is activated at a temperature range equal to or lower than a melting point of the primary particles under a reduced pressure atmosphere to generate an active region, and the primary particles having a plurality of the active regions are blown from the nozzle.

Assignees

• Aist

Inventors

• Shinoda Kentaro
• Saeki Takanori
• Mori Masakazu
• Akedo Jun

Classifications

• C23C4/01

  Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated · CPC title

• C23C24/04 Primary

  Impact or kinetic deposition of particles · CPC title

• C23C4/134

  Plasma spraying · CPC title

• C23C24/10

  with intermediate formation of a liquid phase in the layer · CPC title

• Y10T428/31504

  Composite [nonstructural laminate] · CPC title