GB1387333A - Surface treatment of titanium - Google Patents

Surface treatment of titanium

Info

Publication number
GB1387333A
GB1387333A GB3334572A GB3334572A GB1387333A GB 1387333 A GB1387333 A GB 1387333A GB 3334572 A GB3334572 A GB 3334572A GB 3334572 A GB3334572 A GB 3334572A GB 1387333 A GB1387333 A GB 1387333A
Authority
GB
United Kingdom
Prior art keywords
blackened
precious metal
cro
concentration
titanium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3334572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Metal Industries Kynoch Ltd
Original Assignee
Imperial Metal Industries Kynoch Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Metal Industries Kynoch Ltd filed Critical Imperial Metal Industries Kynoch Ltd
Priority to GB3334572A priority Critical patent/GB1387333A/en
Publication of GB1387333A publication Critical patent/GB1387333A/en
Expired legal-status Critical Current

Links

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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

1387333 Blackening titanium surfaces IMPERIAL METAL INDUSTRIES (KYNOCH) LTD 5 Oct 1973 [17 July 1972] 33345/72 Heading C7U A Ti surface is blackened by contacting it with an aqueous solution of H 2 SO 4 and CrO 3 . The H 2 SO 4 concentration is greater than 30% by vol, preferably 50-70%, the CrO 3 concentration is in the range 35-12D g/l, and the temperature is greater than 100‹C, preferably 120-160‹C. The blackened surface may be subsequently electroplated with Au, Ag, Cu, Ni or Pt group metals, e.g. Pt-Ir alloy. Prior to electroplating, a paint containing a precious metal compound may be applied to the blackened surface which on heating decomposes to form the precious metal, or oxide of the precious metal. The surface may be selectively blackened by using a photo-resist.
GB3334572A 1972-07-17 1972-07-17 Surface treatment of titanium Expired GB1387333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3334572A GB1387333A (en) 1972-07-17 1972-07-17 Surface treatment of titanium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3334572A GB1387333A (en) 1972-07-17 1972-07-17 Surface treatment of titanium

Publications (1)

Publication Number Publication Date
GB1387333A true GB1387333A (en) 1975-03-12

Family

ID=10351756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3334572A Expired GB1387333A (en) 1972-07-17 1972-07-17 Surface treatment of titanium

Country Status (1)

Country Link
GB (1) GB1387333A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158177A2 (en) * 1984-03-23 1985-10-16 Hitachi, Ltd. Method of inhibiting corrosion of zirconium or its alloy
US4726368A (en) * 1985-02-19 1988-02-23 Bioquantum Technologies, Inc. Non-reflective surgical instruments

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158177A2 (en) * 1984-03-23 1985-10-16 Hitachi, Ltd. Method of inhibiting corrosion of zirconium or its alloy
EP0158177A3 (en) * 1984-03-23 1987-01-14 Hitachi, Ltd. Method of inhibiting corrosion of zirconium or its alloy
US4726368A (en) * 1985-02-19 1988-02-23 Bioquantum Technologies, Inc. Non-reflective surgical instruments

Similar Documents

Publication Publication Date Title
GB912956A (en) Improvements in and relating to chemical nickel plating of magnesium and its alloys
GB1108051A (en) Electrodeposition of platinum metals and alloys
GB1056353A (en) Gold plating
IE41858L (en) Electrodeposition of noble metal alloys
GB1506184A (en) Method and composition for electroplating aluminium alloy
GB1249933A (en) Improvements in diffusion metallic coating method
GB1445556A (en) Quaternary silver alloy
EP0190465A3 (en) Process for electroplating amorphous alloys
GB1387333A (en) Surface treatment of titanium
ES462907A1 (en) Process for electrolytic deposition of metals on zirconium materials
GB1379830A (en) Process for bonding titanium or tantalum to copper o' iron
GB1383850A (en) Rhodium-platinum electro-plating bath
GB1442325A (en) Electroplating with gold and gold alloys
GB1304905A (en)
JPS5493639A (en) Plating method
GB1279141A (en) A process for the electrodeposition of gold-copper-cadmium alloy coatings
GB1214420A (en) Surface-pretreatment of non-metallic articles for chemical nickel-plating
GB807172A (en) Improvements relating to the silver plating of copper and copper alloys
Kuznetsov Effect of Cold Work on the Oxidation of Pt and Pd Alloys
GB1070683A (en) Improvements in or relating to the electro-deposition of gold alloys
Kurnoskin Partial Anodic Processes in Hydrazine/Citrate Solution on Nickel Alloys
Bacquias Electrolytic polishing of common and precious metals
JPS54109037A (en) Noble metal plating method
Antropow et al. Electrolytic Deposition of Silver and Deposition by Immersion in Solutions Containing Nitric Acid
Iwamoto et al. Preliminary Study of Oxidation Process of Fe-Cr-Al Alloys Using IMA. Pt. 1

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees