WO2016147209A1 - Process for depositing a noble metal on zirconia ceramics and jewellery product made through such process - Google Patents
Process for depositing a noble metal on zirconia ceramics and jewellery product made through such process Download PDFInfo
- Publication number
- WO2016147209A1 WO2016147209A1 PCT/IT2016/000059 IT2016000059W WO2016147209A1 WO 2016147209 A1 WO2016147209 A1 WO 2016147209A1 IT 2016000059 W IT2016000059 W IT 2016000059W WO 2016147209 A1 WO2016147209 A1 WO 2016147209A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zirconia ceramics
- element made
- depositing
- noble metal
- layer
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/18—Metallic material, boron or silicon on other inorganic substrates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5105—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal with a composition mainly composed of one or more of the noble metals or copper
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5133—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal with a composition mainly composed of one or more of the refractory metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
Abstract
A process for depositing a noble metal on zirconia ceramics is described, which comprises the steps of: spray painting an element made of zirconia ceramics, by using copper powder solvents; depositing on the element made of zirconia ceramics a layer of acid copper, by using a galvanic treatment; mirror polishing the element made of zirconia ceramics; hardening for a first time in an oven the element made of zirconia ceramics; depositing on the element made of zirconia ceramics a layer of white bronze through a galvanic treatment; depositing on the element made of zirconia ceramics, through a galvanic treatment, a layer of palladium, which blocks an oxidation of the metal being present; depositing on the element made of zirconia ceramics, through a galvanic treatment, at least one noble metal; and hardening for a second time, through a heat treatment, the noble metals deposited on the element made of zirconia ceramics.
Description
PROCESS FOR DEPOSITING A NOBLE METAL ON ZIRCONIA CERAMICS AND JEWELLERY PRODUCT MADE THROUGH SUCH PROCESS
The present invention refers to a process for depositing a noble metal on zirconia ceramics, and to a jewellery product made through such process.
Processes of the above mentioned type, used in the field of jewellery, for producing various types of jewels, are not known to the Applicant of the present invention. The mina reason for he absence of these processes has been the difficulty of coupling these two materials, producing manufactured products which are subjected to impacts and stresses during their use, with the risk of detaching the above noble metal, with obvious problems of costs and of depreciation of the jewellery products.
Object of the present invention is solving the above prior art problems, by providing a process which allows, simply, quickly and efficiently depositing noble metals on substrates made of
zirconia ceramics, making final jewellery products which are very resistant and hard, and which therefore are not subjected to detachments of the noble metal above, keeping the intrinsic solidity of the ceramic sub-layer.
A further object is providing a jewellery product made through the inventive process, which is solid, resistant and of a pleasant and beautiful appearance .
The above and other objects and advantages of the invention, as will result from the following description, are obtained with a process as claimed in claim 1. Preferred embodiments and non-trivial variations of the present invention are the subject matter of the dependent claims.
It is intended that all enclosed claims are an integral part of the present description.
It will be immediately obvious that numerous variations and modifications (for example related to shape, sizes, arrangements and parts with equivalent functionality) can be made with what is described, without departing from the scope of the invention as appears from the enclosed claims.
The present invention will be better described by some preferred embodiments thereof, provided as
a non-limiting example herein below.
According to the present invention, the process for depositing a noble metal on zirconia ceramics according to the present invention, comprises the steps of:
spray painting at least one element made of zirconia ceramics, by using copper powder solvents ;
depositing on the element made of zirconia ceramics a layer of acid copper, by using a galvanic treatment;
mirror polishing the element made of zirconia ceramics ;
hardening for a first time in an oven the element made of zirconia ceramics;
depositing on the element made of zirconia ceramics a layer of white bronze through a galvanic treatment;
depositing on the element made of zirconia ceramics, through a galvanic treatment, a layer of palladium, which blocks an oxidation of the metal being present;
depositing on the element made of zirconia ceramics, through a galvanic treatment, at least one noble metal; and
hardening for a second time, through a heat treatment, the noble metals deposited on the element made of zirconia ceramics.
In particular, the noble metal can be chosen in the group comprising gold, silver or platinum.
Always in particular, the step of mirror cleaning can occur through manual brushing, or with automatic tumbling.
Optimally, the step of first hardening in an oven preferably occurs at a temperature between 300 °C and 400 °C for a period ranging between 3 and 3.5 hours, while the step of second hardening through heat treatment can occur at a temperature of about 200 °C for a period ranging between 3 and 4 hours.
The present invention also deals with a jewellery product composed of at least one sublayer of zirconia ceramics and at least one layer of a noble metal, made through the above described process.
Claims
1. Process for depositing a noble metal on zirconia ceramics, comprising the steps of:
spray painting at least one element made of zirconia ceramics, by using copper powder solvents ;
depositing on the element made of zirconia ceramics a layer of acid copper, by using a galvanic treatment;
- mirror polishing the element made of zirconia ceramics ;
hardening for a first time in an oven the element made of zirconia ceramics;
depositing on the element made of zirconia ceramics a layer of white bronze through a galvanic treatment;
depositing on the element made of zirconia ceramics, through a galvanic treatment, a layer of palladium, which blocks an oxidation of the metal being present;
depositing on the element made of zirconia ceramics, through a galvanic treatment, at least one noble metal; and
hardening for a second time, through a heat treatment, the noble metals deposited on the
element made of zirconia ceramics.
2. Process according to claim 1, wherein the noble metal is chosen in a group comprising gold, silver or platinum.
3. Process according to claim 1, wherein the step of mirror cleaning occurs through manual brushing.
4. Process according to claim 1, wherein the step of mirror cleaning occurs with automatic tumbling.
5. Process according to claim 1, wherein the step of first hardening in an oven occurs at a temperature between 300 °C and 400 °C for a period ranging between 3 and 3.5 hours .
6. Process according to claim 1, wherein the step of second hardening through heat treatment occurs at a temperature of about 200 °C for a period ranging between 3 and 4 hours.
7. Jewellery product composed of at least one sub-layer of zirconia ceramics and at least one layer of a noble metal, said jewellery product being made through a process according to any one of the previous claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2015A000168 | 2015-03-13 | ||
| ITTO20150168 | 2015-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016147209A1 true WO2016147209A1 (en) | 2016-09-22 |
Family
ID=53002783
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2016/000058 WO2016147208A1 (en) | 2015-03-13 | 2016-03-07 | Process for depositing a noble metal on zirconia ceramics and jewellery product made through such process |
| PCT/IT2016/000059 WO2016147209A1 (en) | 2015-03-13 | 2016-03-07 | Process for depositing a noble metal on zirconia ceramics and jewellery product made through such process |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2016/000058 WO2016147208A1 (en) | 2015-03-13 | 2016-03-07 | Process for depositing a noble metal on zirconia ceramics and jewellery product made through such process |
Country Status (1)
| Country | Link |
|---|---|
| WO (2) | WO2016147208A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11919817B2 (en) | 2017-04-20 | 2024-03-05 | Rolex Sa | Manufacture of a ceramic component |
| EP3395784A1 (en) * | 2017-04-20 | 2018-10-31 | Rolex Sa | Ceramic component for a timepiece |
| CN109485459B (en) * | 2018-12-12 | 2023-09-05 | 中国人民解放军总医院第八医学中心 | Zirconium dioxide nanotube film coating plated on surface of zirconium oxide ceramic, and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06116700A (en) * | 1992-10-07 | 1994-04-26 | Masao Saito | Noble metal coating method and noble metal-coated ornament |
| US20070231590A1 (en) * | 2006-03-31 | 2007-10-04 | Stellar Industries Corp. | Method of Bonding Metals to Ceramics |
| US20110259753A1 (en) * | 2010-04-23 | 2011-10-27 | Omega Sa | Ceramic element inlaid with at least one metallic decoration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244798A (en) * | 1979-10-29 | 1981-01-13 | General Motors Corporation | Exhaust electrode process for exhaust gas oxygen sensor |
| EP1548524B1 (en) * | 2003-12-23 | 2007-08-22 | Rolex S.A. | Ceramic element for watch case and method of manufacturing the same |
| GB2501763A (en) * | 2012-05-04 | 2013-11-06 | Bjb Ltd | Ceramic and metal jewellery |
-
2016
- 2016-03-07 WO PCT/IT2016/000058 patent/WO2016147208A1/en active Application Filing
- 2016-03-07 WO PCT/IT2016/000059 patent/WO2016147209A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06116700A (en) * | 1992-10-07 | 1994-04-26 | Masao Saito | Noble metal coating method and noble metal-coated ornament |
| US20070231590A1 (en) * | 2006-03-31 | 2007-10-04 | Stellar Industries Corp. | Method of Bonding Metals to Ceramics |
| US20110259753A1 (en) * | 2010-04-23 | 2011-10-27 | Omega Sa | Ceramic element inlaid with at least one metallic decoration |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016147208A1 (en) | 2016-09-22 |
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