[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB1314884A - Manufacturing target electrodes for x-ray tubes - Google Patents

Manufacturing target electrodes for x-ray tubes

Info

Publication number
GB1314884A
GB1314884A GB1314884DA GB1314884A GB 1314884 A GB1314884 A GB 1314884A GB 1314884D A GB1314884D A GB 1314884DA GB 1314884 A GB1314884 A GB 1314884A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
rhenium
electro
mixture
deposited
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
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Publication of GB1314884A publication Critical patent/GB1314884A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes

Landscapes

  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

1314884 Electro-depositing W or W-Re MULLARD Ltd 28 May 1970 25789/70 Heading C7B In manufacturing a rotary target electrode for an X-ray tube, a metal layer of tungsten or tungsten-rhenium is electro-deposited on an electrically conductive substrate disc from a bath of fused salts comprising a mixture of:- (a) an alkali metal tungstate or a mixture of an alkali metal tungstate and an alkali metal acidic rhenium salt, (b) an alkali metal borate or phosphate, and (c) tungstic oxide or a mixture of tungstic and rhenium oxides. Specified conditions are:- a substrate of W, Mo, W-Mo, an alloy based on W or Mo or pre-plated carbon; a W anode; a bath at 850-1000‹C. comprising (a) Na Li Wo 4 and optionally sodium lithium perrhenate, (b)Na Li B 2 O 4 or sodium lithium phosphate and (c) WO 3 and optionally rhenium oxide; a N 2 atmosphere; and electro-deposition using a current density exceeding 0À01A/cm<SP>2</SP>, e.g. using periodic reverse plating with identical forward and reverse currents of 5 A/cm<SP>2</SP> for 10 secs and 1 sec respectively, to produce a deposited layer at least 100 microns thick. Deposited layers may be smoothed by grinding. Specification 777591 is referred to.
GB1314884D 1970-05-28 1970-05-28 Manufacturing target electrodes for x-ray tubes Expired GB1314884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2578970 1970-05-28

Publications (1)

Publication Number Publication Date
GB1314884A true GB1314884A (en) 1973-04-26

Family

ID=10233337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1314884D Expired GB1314884A (en) 1970-05-28 1970-05-28 Manufacturing target electrodes for x-ray tubes

Country Status (4)

Country Link
BE (1) BE767710A (en)
DE (1) DE2122950A1 (en)
FR (1) FR2093868A5 (en)
GB (1) GB1314884A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661692A1 (en) * 1990-05-04 1991-11-08 Gen Electric Cgr Rhenium deposition process
US11081325B2 (en) 2013-09-05 2021-08-03 Plansee Se Conductive target material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535344A1 (en) * 1982-10-29 1984-05-04 Thomson Csf METHOD FOR SELECTIVE DEPOSITION OF A REFRACTORY METAL LAYER ON A GRAPHITE PIECE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661692A1 (en) * 1990-05-04 1991-11-08 Gen Electric Cgr Rhenium deposition process
US11081325B2 (en) 2013-09-05 2021-08-03 Plansee Se Conductive target material

Also Published As

Publication number Publication date
BE767710A (en) 1971-11-26
DE2122950A1 (en) 1971-12-09
FR2093868A5 (en) 1972-01-28

Similar Documents

Publication Publication Date Title
ES356666A1 (en) Electrochemical cell
GB1329688A (en) Electrochemical lithium-selenium power-producing cell
ES429008A1 (en) Process for the electrolysis of a molten charge using inconsumable bi-polar electrodes
GB1190470A (en) A Rotating-Anode X-Ray Tube.
JP2000506224A (en) Method for electrochemical removal of materials, especially excess emitter material in electron emission devices
US3558966A (en) Directly heated dispenser cathode
US3239439A (en) Electrodeposition of metals
JP2020533767A (en) MBFEX tube
GB1314884A (en) Manufacturing target electrodes for x-ray tubes
GB775585A (en) Electrode-position of titanium, zirconium, hafnium, tantalum, vanadium, niobium, chromium, molybdenum and tungsten
GB2021310A (en) X-ray tube
GB1029474A (en) Improvements in chromizing metal articles
Verdieck et al. The Electrochemistry of Baths of Fused Aluminum Halides. IV.
US2428055A (en) Composite selenium electrode
SE7705088L (en) X-RAY ANSURE WITH ALLOY SURFACE AND PROCEDURE FOR MANUFACTURE THEREOF
GB496113A (en) Improvements in or relating to the electro-deposition of metals
GB777591A (en) Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal
CN102610474A (en) Focusing cathode for X-ray tube, X-ray source of focusing cathode and preparation method
JPS6020754B2 (en) electrolytic display cell
US20070207338A1 (en) X-ray target and method for manufacturing same
US1562164A (en) Process of coating electrodes
Brophy Secondary emission of electrons from liquid metal surfaces
US1845042A (en) Electron discharge device
JPH01302638A (en) Cathode structure
GB1199024A (en) Improvements in process for Vanadiding Metals

Legal Events

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