GB1255321A - Surface diffusion processes using electrical glow discharges - Google Patents

Surface diffusion processes using electrical glow discharges

Info

Publication number
GB1255321A
GB1255321A GB1168768A GB1168768A GB1255321A GB 1255321 A GB1255321 A GB 1255321A GB 1168768 A GB1168768 A GB 1168768A GB 1168768 A GB1168768 A GB 1168768A GB 1255321 A GB1255321 A GB 1255321A
Authority
GB
United Kingdom
Prior art keywords
discharge
workpiece
surface diffusion
diffusion processes
glow discharges
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
GB1168768A
Inventor
John Roland Stokes
Maurice James Wright
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB1168768A priority Critical patent/GB1255321A/en
Priority to FR6906604A priority patent/FR2003632A1/fr
Priority to DE19691912114 priority patent/DE1912114B2/en
Publication of GB1255321A publication Critical patent/GB1255321A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32018—Glow discharge
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Plasma Technology (AREA)

Abstract

1,255,321. Glow-discharge nitriding. JOSEPH LUCAS (INDUSTRIES) Ltd. March 6, 1969 [March 11, 1968], No. 11687/68. Heading C7U. [Also in Division G3] In a glow-discharge process for treating (e.g. by ion-nitriding) a workpiece (e.g. of steel), the discharge is maintained by a pulsed current, a reducing gas (e.g. hydrogen) is introduced into the chamber in which the workpiece is the cathode and the discharge is maintained until the workpiece is cleaned and reaches the working temperature when the mark-space ratio of the pulse is decreased. The working gas may be introduced before, or when, the working temperature is reached.
GB1168768A 1968-03-11 1968-03-11 Surface diffusion processes using electrical glow discharges Expired GB1255321A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1168768A GB1255321A (en) 1968-03-11 1968-03-11 Surface diffusion processes using electrical glow discharges
FR6906604A FR2003632A1 (en) 1968-03-11 1969-03-10
DE19691912114 DE1912114B2 (en) 1968-03-11 1969-03-11 SURFACE DIFFUSION METHOD USING ELECTRIC GLIME DISCHARGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1168768A GB1255321A (en) 1968-03-11 1968-03-11 Surface diffusion processes using electrical glow discharges

Publications (1)

Publication Number Publication Date
GB1255321A true GB1255321A (en) 1971-12-01

Family

ID=9990846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1168768A Expired GB1255321A (en) 1968-03-11 1968-03-11 Surface diffusion processes using electrical glow discharges

Country Status (3)

Country Link
DE (1) DE1912114B2 (en)
FR (1) FR2003632A1 (en)
GB (1) GB1255321A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3330702A1 (en) * 1983-08-25 1985-03-07 Vsesojuznyj naučno-issledovatel'skij, proektno-konstruktorskij i technologičeskij institut elektrotermiČeskogo oborudovanija, Moskva Method for the chemical-thermal treatment of products with the aid of a glow discharge, and an installation for carrying out said method
GB2196993A (en) * 1986-10-29 1988-05-11 Electricity Council Method and apparatus for thermochemical treatment
DE3700633C1 (en) * 1987-01-12 1988-05-26 Reinar Dr Gruen Method and device for the gentle coating of electrically conductive objects by means of plasma
US4853046A (en) * 1987-09-04 1989-08-01 Surface Combustion, Inc. Ion carburizing
US5127967A (en) * 1987-09-04 1992-07-07 Surface Combustion, Inc. Ion carburizing
WO2004057051A1 (en) * 2002-12-20 2004-07-08 Coppe/Ufrj - Coordenação Dos Programas De Pós Graduação De Engenharia Da Universidade Federal Do Rio De Janeiro Hydrogen diffusion barrier on steel by means of a pulsed-plasma ion-nitriding process
EP2351869A1 (en) * 2002-12-20 2011-08-03 COPPE/UFRJ - Coordenação dos Programas de Pós Graduação de Engenharia da Universidade Federal do Rio de Janeiro Hydrogen diffusion barrier on steel by means of a pulsed-plasma ion-nitriding process

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH561285A5 (en) * 1973-02-19 1975-04-30 Berghaus Bernhard Elektrophysi
FR2379615A1 (en) * 1977-02-08 1978-09-01 Vide & Traitement Sa THERMOCHEMICAL TREATMENT PROCESS OF METALS
DE2816101C2 (en) * 1978-04-13 1983-03-24 Vladimir Stepanovič Sverdlovsk Šlentov Device for the power supply of systems for workpiece processing with the aid of a glow discharge
FR2423914A1 (en) * 1978-04-20 1979-11-16 Aizenshtein Anatoly Pulsed power supply system - is for discharge equipment for treating workpieces and prevents glow discharge passing over into damaging arc discharge
FR2501727A1 (en) * 1981-03-13 1982-09-17 Vide Traitement PROCESS FOR THE THERMOCHEMICAL TREATMENT OF METALS BY ION BOMBING
GB2100023B (en) * 1981-06-05 1985-01-09 Aizenshtein Anatoly Gdalievich Method of control of chemico-thermal treatment of workpieces in glow discharge and a device for carrying out the same
FR2518354A1 (en) * 1981-12-16 1983-06-17 Atelier Electro Thermie Const PROCESS FOR GENERATING PLASMA AND DEVICE FOR IMPLEMENTING SAID METHOD

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3330702A1 (en) * 1983-08-25 1985-03-07 Vsesojuznyj naučno-issledovatel'skij, proektno-konstruktorskij i technologičeskij institut elektrotermiČeskogo oborudovanija, Moskva Method for the chemical-thermal treatment of products with the aid of a glow discharge, and an installation for carrying out said method
GB2196993A (en) * 1986-10-29 1988-05-11 Electricity Council Method and apparatus for thermochemical treatment
US4900371A (en) * 1986-10-29 1990-02-13 The Electricity Council Method and apparatus for thermochemical treatment
GB2196993B (en) * 1986-10-29 1991-04-03 Electricity Council Method and apparatus for thermochemical treatment
DE3700633C1 (en) * 1987-01-12 1988-05-26 Reinar Dr Gruen Method and device for the gentle coating of electrically conductive objects by means of plasma
US4853046A (en) * 1987-09-04 1989-08-01 Surface Combustion, Inc. Ion carburizing
US5127967A (en) * 1987-09-04 1992-07-07 Surface Combustion, Inc. Ion carburizing
WO2004057051A1 (en) * 2002-12-20 2004-07-08 Coppe/Ufrj - Coordenação Dos Programas De Pós Graduação De Engenharia Da Universidade Federal Do Rio De Janeiro Hydrogen diffusion barrier on steel by means of a pulsed-plasma ion-nitriding process
EP2351869A1 (en) * 2002-12-20 2011-08-03 COPPE/UFRJ - Coordenação dos Programas de Pós Graduação de Engenharia da Universidade Federal do Rio de Janeiro Hydrogen diffusion barrier on steel by means of a pulsed-plasma ion-nitriding process

Also Published As

Publication number Publication date
DE1912114A1 (en) 1969-12-11
FR2003632A1 (en) 1969-11-14
DE1912114B2 (en) 1976-12-16

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