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1. WO2011026201 - METALLIC COATINGS ON METALLIC SUBSTRATES

Publication Number WO/2011/026201
Publication Date 10.03.2011
International Application No. PCT/BE2010/000062
International Filing Date 03.09.2010
IPC
C25D 13/00 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
13Electrophoretic coating characterised by the process
C25D 13/02 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
13Electrophoretic coating characterised by the process
02with inorganic material
A61L 27/06 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
27Materials for prostheses or for coating prostheses
02Inorganic materials
04Metals or alloys
06Titanium or titanium alloys
B01J 21/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
C23C 18/08 2006.01
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
02by thermal decomposition
08characterised by the deposition of metallic material
CPC
A61L 2420/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2420Materials or methods for coatings medical devices
02Methods for coating medical devices
A61L 27/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
27Materials for ; grafts or; prostheses or for coating ; grafts or; prostheses
02Inorganic materials
04Metals or alloys
A61L 27/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
27Materials for ; grafts or; prostheses or for coating ; grafts or; prostheses
02Inorganic materials
04Metals or alloys
06Titanium or titanium alloys
A61L 27/306
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
27Materials for ; grafts or; prostheses or for coating ; grafts or; prostheses
28Materials for coating prostheses
30Inorganic materials
306Other specific inorganic materials not covered by A61L27/303 - A61L27/32
A61L 27/56
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
27Materials for ; grafts or; prostheses or for coating ; grafts or; prostheses
50Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
56Porous materials, ; e.g. foams or sponges
B01J 35/004
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
002Catalysts characterised by their physical properties
004Photocatalysts
Applicants
  • KATHOLIEKE UNIVERSITEIT LEUVEN (AllExceptUS)
  • BRAEM, Annabel [BE]/[BE] (UsOnly)
  • MATTHEYS, Tina [BE]/[BE] (UsOnly)
  • NEIRINCK, Bram [BE]/[BE] (UsOnly)
  • SCHROOTEN, Jan [BE]/[BE] (UsOnly)
  • VAN DER BIEST, Omer [BE]/[BE] (UsOnly)
  • VLEUGELS, Jozef [BE]/[BE] (UsOnly)
Inventors
  • BRAEM, Annabel
  • MATTHEYS, Tina
  • NEIRINCK, Bram
  • SCHROOTEN, Jan
  • VAN DER BIEST, Omer
  • VLEUGELS, Jozef
Common Representative
  • KATHOLIEKE UNIVERSITEIT LEUVEN
Priority Data
0915508.604.09.2009GB
0915560.707.09.2009GB
0915577.107.09.2009GB
1007563.806.05.2010GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METALLIC COATINGS ON METALLIC SUBSTRATES
(FR) ENROBAGES MÉTALLIQUES SUR DES SUBSTRATS MÉTALLIQUES
Abstract
(EN)
Porous titanium coatings have been produced on Ti-6A1-4V substrates by electrophoretic deposition of TiH2 powder suspensions, followed by vacuum sintering at 850°C. The use of titanium hydride resulted in lower sintering temperatures as compared to pure titanium powders and this allowed maintaining the α-β microstructure and mechanical properties of the substrate material. Pure Ti coatings with thicknesses varying from 10 μm to over 500 μm, a porosity ranging from 37 to 52 % and a surface roughness from 1.6 to 4.9 μm have been produced. The process allows to control the thickness and porosity of the coating. Metal coatings with metals of the group consisting of Ti, Zr, Mg5 Hf, Ta, Nd, Nb, Mn, and Mo with thicknesses varying from 1μm - 90 μm, from 2 μm - 90 μm or from 2 μm - 1000 μm and a porosity ranging from 0 to 70%, preferably from 2 to 70% and more preferably from 45 to 70 % are achievable by this process. It even is possibly to produce coatings that have a porosity of only 0-5 % porosity. Adhesion testing of the coatings showed a tensile bond strength that is higher than 22 MPa.
(FR)
L'invention concerne des enrobages en titane produits sur des substrats Ti-6A1-4V par dépôt par éléetrophorèse de suspensions de poudre de TiH2, suivi d'un frittage sous vide à 850°C. L'utilisation d'un hybride du titane permet d'obtenir des températures de frittage plus basses par rapport aux poudres de titane ce qui permet de conserver la microstructure α-β et les propriétés mécaniques du matériau de substrat. Ce mode de réalisation a permis d'obtenir des enrobages de Ti pur dont les épaisseurs varient de 10 μm à plus de 500 μm, une porosité de 37 à 52% et une rugosité de la surface de 1,6 à 4,9 μm. Le procédé permet de réguler l'épaisseur et la porosité de l'enrobage. Ce procédé permet d'obtenir des enrobages métalliques avec des métaux du groupe comprenant Ti, Zr, Mg5 Hf, Ta, Nd, Nb, Mn, et Mo ayant des épaisseurs qui varient de 1 μm à 90 μm, de 2 μm à 90 μm ou de 2 μm à 1000 μm et une porosité de 0 à 70%, de préférence de 2 à 70%, et plus avantageusement, de 45 à 70%. Il est également possible de produire des enrobages qui présentent une porosité de 0 à 5% seulement. Des d'essais d'adhésion des enrobages ont montré une résistance d'adhésion à l'étirement supérieure à 22 MPa.
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