GB736572A - Improvements in or relating to methods of plating crystals - Google Patents

Improvements in or relating to methods of plating crystals

Info

Publication number
GB736572A
GB736572A GB2860453A GB2860453A GB736572A GB 736572 A GB736572 A GB 736572A GB 2860453 A GB2860453 A GB 2860453A GB 2860453 A GB2860453 A GB 2860453A GB 736572 A GB736572 A GB 736572A
Authority
GB
United Kingdom
Prior art keywords
silver
ethyl alcohol
solution
crystals
pyridine
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
GB2860453A
Inventor
Cyril Francis Drake
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2860453A priority Critical patent/GB736572A/en
Publication of GB736572A publication Critical patent/GB736572A/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
    • C23C18/00—Chemical 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
    • C23C18/16—Chemical 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 by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/42—Coating with noble metals
    • C23C18/44—Coating with noble metals using reducing agents

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)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

Conducting silver coatings are formed on non-metallic crystals by immersing the crystal first in a surface-activating bath and then in a solution of silver nitrate in pyridine to which has been added a small quantity of phenylhydrazine dissolved in pyridine. The activating bath may be of stannous chloride in ethyl alcohol. The crystal may be repeatedly immersed in the silvering solution with intermediate washing in ethyl alcohol to increase the coating thickness or, after the first layer has been deposited, the thickness may be built up by electrolysis, using a solution of silver and potassium cyanides in anhydrous ethyl alcohol with a silver or stainless steel anode. Crystals of ethyl diamine tartrate and barium titanate are referred to.
GB2860453A 1953-10-16 1953-10-16 Improvements in or relating to methods of plating crystals Expired GB736572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2860453A GB736572A (en) 1953-10-16 1953-10-16 Improvements in or relating to methods of plating crystals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2860453A GB736572A (en) 1953-10-16 1953-10-16 Improvements in or relating to methods of plating crystals

Publications (1)

Publication Number Publication Date
GB736572A true GB736572A (en) 1955-09-07

Family

ID=10278238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2860453A Expired GB736572A (en) 1953-10-16 1953-10-16 Improvements in or relating to methods of plating crystals

Country Status (1)

Country Link
GB (1) GB736572A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179576A (en) * 1960-11-29 1965-04-20 Philco Corp Process for fabricating a capacitor
US4274877A (en) * 1975-07-04 1981-06-23 Johnson, Matthey & Co., Limited Metal powders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179576A (en) * 1960-11-29 1965-04-20 Philco Corp Process for fabricating a capacitor
US4274877A (en) * 1975-07-04 1981-06-23 Johnson, Matthey & Co., Limited Metal powders

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