# US 11,993,534 B2 · Volatilization suppressing component, and method for manufacturing same

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- Number: US 11,993,534 B2
- Document ID: US11993534B2
- Status: Granted
- Kind: B2
- Application number: 17/282,572
- Filed: 2019-09-27
- Published: 2021-11-11
- Granted: 2024-05-28
- Earliest claimed: 2018-10-04
- Assignees: Furuya Metal Co., Ltd.
- Applicants: Furuya Metal Co., Ltd.
- Inventors: Shoji Saito; Tomoaki Miyazawa; Tomohiro Maruko; Yuichi Iwamoto; Atsushi Ito
- Web page: https://patentgrep.com/patent/US11993534B2

## CPC

- C03B 5/43: Use of materials for furnace walls, e.g. fire-bricks
- B05D 1/28: performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
- B05D 3/0272: {with ovens}
- B05D 7/14: to metal, e.g. car bodies (involving a chemical reaction between the metal and the coating C23)
- B32B 15/04: comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)}
- B32B 15/06: of {natural rubber or synthetic} rubber
- C01G 25/02: Oxides
- C03B 5/1672: {Use of materials therefor}
- C03B 5/1675: {Platinum group metals}
- C04B 35/488: Composites
- C04B 35/62222: {obtaining ceramic coatings (coating of mortars, concrete, artificial or natural stone or ceramics C04B41/45; laminated ceramic products B32B18/00; coating of glass C03C17/00, applying ceramic coatings on silicon for semi-conductor purposes H10W; coating metallic materials C23)}
- C23C 4/18: After-treatment
- C23C 14/08: Oxides (C23C14/10 takes precedence)
- C23C 24/04: Impact or kinetic deposition of particles
- C23C 28/04: only coatings of inorganic non-metallic material
- C23C 28/042: {including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides}
- C04B 2235/3246: Stabilised zirconias, e.g. YSZ or cerium stabilised zirconia
- C04B 2235/3427: Silicates other than clay, e.g. water glass
- C04B 2235/5436: micrometer sized, i.e. from 1 to 100 micron
- C04B 2235/5445: submicron sized, i.e. from 0,1 to 1 micron
- C04B 2235/5472: Bimodal, multi-modal or multi-fraction
- C23C 4/11: Oxides
- C23C 4/134: Plasma spraying
- Y02P 40/57: Improving the yield, e-g- reduction of reject rates
- C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C01G: COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts or peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium, or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds containing nitrogen, other non-metals and metal C01B21/082}; metal amides C01B21/092; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanamide C01C3/16; thiocyanates C01C3/20)
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

The volatilization suppressing component according to the present disclosure has a metallic base material; and a laminated film having at least a first layer formed on a portion or the entirety of a surface of the metallic base material, and a second layer formed on the first layer, wherein the first layer is an adhesive layer between the metallic base material and the second layer, and the second layer is a protective layer for the first layer.

## Claims

### Claim 1

A volatilization suppressing component comprising:
a metallic base material; and
a laminated film having at least a first layer formed on a portion or the entirety of a surface of the metallic base material, and a second layer formed on the first layer,
wherein the first layer is an adhesive layer between the metallic base material and the second layer, in which the adhesive layer has an average porosity of less than 5%; and wherein the second layer is a porous protective layer for the first layer, in which the porous protective layer has an average porosity of 10% or high and 50% or lower; and
wherein an average particle size in the first layer is lager than an average particle size in the second layer.

### Claim 2 (depends on 1)

The volatilization suppressing component according to claim 1, wherein the first layer is denser than the second layer.

### Claim 3 (depends on 1)

The volatilization suppressing component according to claim 1, wherein the average particle size in the first layer is more than 2 μm and 20 μm or less, and the average particle size in the second layer is 0.5 μm or more and 2 μm or less.

### Claim 4 (depends on 1)

The volatilization suppressing component according to claim 1, wherein an average thickness of the first layer is 50 μm or more and 150 μm or less, and an average thickness of the second layer is 30 μm or more and 65 μm or less.

### Claim 5 (depends on 1)

The volatilization suppressing component according to claim 1, wherein the metallic base material has anchors at a vertical cross-section representing a thickness of the base material, and an average cross-sectional area per anchor is 300 μm2 or more.

### Claim 6 (depends on 5)

The volatilization suppressing component according to claim 5, wherein in the vertical cross-section, constituent particles of the first layer occupy 85% or more of the cross-sectional area of the anchors.

### Claim 7 (depends on 1)

The volatilization suppressing component according to claim 1, wherein the laminated film is an oxide containing any one element of zirconium, silicon, aluminum, hafnium, calcium, magnesium, beryllium, thorium, or yttrium as a main component, or a composite oxide of these.

### Claim 8 (depends on 1)

The volatilization suppressing component according to claim 1, wherein the first layer and the second layer contain the same oxide as a main component.

### Claim 9 (depends on 1)

The volatilization suppressing component according to claim 1, wherein a material of the metallic base material is platinum, a platinum alloy, iridium, or an iridium alloy.

### Claim 10 (depends on 1)

A method for manufacturing the volatilization suppressing component according to claim 1, the method comprising:
a step of forming the first layer on the surface of the metallic base material by a thermal spraying method; and
a step of forming the second layer by performing, at least once, a process of forming a liquid layer on a surface of the first layer and of drying and solidifying the liquid layer.

### Claim 11 (depends on 10)

The method for manufacturing the volatilization suppressing component according to claim 10, wherein in the step of forming the second layer, a colloidal solution layer is formed at least once as the liquid layer.

### Claim 12 (depends on 10)

The method for manufacturing the volatilization suppressing component according to claim 10, wherein the liquid layer is formed by brush coating or spray coating.