EP1178122A3 - Verfahren zur Bestimmung des Reduktions-oder Oxidationspotentials von Gasatmosphären in Bezug auf Metall-Metalloxide - Google Patents

Verfahren zur Bestimmung des Reduktions-oder Oxidationspotentials von Gasatmosphären in Bezug auf Metall-Metalloxide Download PDF

Info

Publication number
EP1178122A3
EP1178122A3 EP01116252A EP01116252A EP1178122A3 EP 1178122 A3 EP1178122 A3 EP 1178122A3 EP 01116252 A EP01116252 A EP 01116252A EP 01116252 A EP01116252 A EP 01116252A EP 1178122 A3 EP1178122 A3 EP 1178122A3
Authority
EP
European Patent Office
Prior art keywords
metal
determining
oxidation potential
metaloxides
procedure
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.)
Withdrawn
Application number
EP01116252A
Other languages
English (en)
French (fr)
Other versions
EP1178122A2 (de
Inventor
Rainer Gorris
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1178122A2 publication Critical patent/EP1178122A2/de
Publication of EP1178122A3 publication Critical patent/EP1178122A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C23C8/08—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 only one element being applied
    • C23C8/10—Oxidising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

Verfahren zur Bestimmung des Reduktions oder Oxidationspotentials von Gasatmosphären auf Metall-Metalloxide dadurch gebildet, dass der gemessene Sauerstoffpartialdruck der Gasatmosphäre in ein Verhältnis zu dem Gleichgewichtssauerstoffpartialdruck des Metall-Metalloxidgemisches gesetzt wird. Der Sauerstoffpartialdruck wird mit einer Zirkondioxidsonde (galvanische Festelektrolytselle) gemessen und daraus in einem Ausführungsbeispiel das Verhältnis pO2(Me/MenOm)pO2(Messgas) berechnet. Ein Beispiel für das Me/MenOm-Gleichgewicht ist das Fe/FeO Gleichgewicht. Für die Berechnung stehen Auswerteelektroniken oder Regler zur Verfügung.
EP01116252A 2000-07-07 2001-07-05 Verfahren zur Bestimmung des Reduktions-oder Oxidationspotentials von Gasatmosphären in Bezug auf Metall-Metalloxide Withdrawn EP1178122A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032411 2000-07-07
DE2000132411 DE10032411A1 (de) 2000-07-07 2000-07-07 Kennzahl zur Charakterisierung des Reduktions- oder Oxidationspotentials von Gasatmosphären in Bezug auf Metall-Metalloxide

Publications (2)

Publication Number Publication Date
EP1178122A2 EP1178122A2 (de) 2002-02-06
EP1178122A3 true EP1178122A3 (de) 2002-02-27

Family

ID=7647703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01116252A Withdrawn EP1178122A3 (de) 2000-07-07 2001-07-05 Verfahren zur Bestimmung des Reduktions-oder Oxidationspotentials von Gasatmosphären in Bezug auf Metall-Metalloxide

Country Status (2)

Country Link
EP (1) EP1178122A3 (de)
DE (1) DE10032411A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883408A (en) * 1972-05-03 1975-05-13 Inland Steel Co Furnace atmosphere oxygen analysis apparatus
JPS5613430A (en) * 1979-07-14 1981-02-09 Nisshin Steel Co Ltd Annealing method of steel
JPS60128208A (ja) * 1983-12-14 1985-07-09 Kanto Yakin Kogyo Kk 金属のガス雰囲気熱処理法及びガス雰囲気熱処理炉
JPH06145781A (ja) * 1992-11-02 1994-05-27 Nippon Techno:Kk 雰囲気熱処理炉
US5385337A (en) * 1991-12-31 1995-01-31 Gas Research Institute Control system for a soft vacuum furnace
EP0792940A1 (de) * 1996-02-09 1997-09-03 Praxair Technology, Inc. Verfahren und Vorrichtung zur Wärmebehandlung mit Regelung von H2/H2O in einer Ofenstrecke
DE19736514C1 (de) * 1997-08-22 1998-09-24 Messer Griesheim Gmbh Verfahren zum gemeinsamen Oxidieren und Wärmebehandeln von Teilen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883408A (en) * 1972-05-03 1975-05-13 Inland Steel Co Furnace atmosphere oxygen analysis apparatus
JPS5613430A (en) * 1979-07-14 1981-02-09 Nisshin Steel Co Ltd Annealing method of steel
JPS60128208A (ja) * 1983-12-14 1985-07-09 Kanto Yakin Kogyo Kk 金属のガス雰囲気熱処理法及びガス雰囲気熱処理炉
US5385337A (en) * 1991-12-31 1995-01-31 Gas Research Institute Control system for a soft vacuum furnace
JPH06145781A (ja) * 1992-11-02 1994-05-27 Nippon Techno:Kk 雰囲気熱処理炉
EP0792940A1 (de) * 1996-02-09 1997-09-03 Praxair Technology, Inc. Verfahren und Vorrichtung zur Wärmebehandlung mit Regelung von H2/H2O in einer Ofenstrecke
DE19736514C1 (de) * 1997-08-22 1998-09-24 Messer Griesheim Gmbh Verfahren zum gemeinsamen Oxidieren und Wärmebehandeln von Teilen

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198114, Derwent World Patents Index; Class M24, AN 1981-24149D, XP002185503 *
DATABASE WPI Section Ch Week 198533, Derwent World Patents Index; Class M24, AN 1985-201277, XP002185505 *
DATABASE WPI Section Ch Week 199426, Derwent World Patents Index; Class M24, AN 1994-211113, XP002185504 *
HOFFMANN R: "Oxidationsvorgänge bei Wärmebehandlungen unter Schutzgas", HAERTEREI TECHNISCHE MITTEILUNGEN, CARL HANSER VERLAG. MUNCHEN, DE, vol. 39, no. 2, 1 March 1984 (1984-03-01), pages 61 - 70, XP002087508, ISSN: 0341-101X *
PATENT ABSTRACTS OF JAPAN vol. 005, no. 062 (C - 052) 25 April 1981 (1981-04-25) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 283 (C - 313) 9 November 1985 (1985-11-09) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 468 (C - 1244) 31 August 1994 (1994-08-31) *
WEISSOHN H-H: "SAUERSTOFFSONDEN-ANWENDUNG IN WAERMEBEHANDLUNGSANLAGEN", HAERTEREI TECHNISCHE MITTEILUNGEN, CARL HANSER VERLAG. MUNCHEN, DE, vol. 53, no. 4, 1 July 1998 (1998-07-01), pages 238 - 244, XP000772964, ISSN: 0341-101X *

Also Published As

Publication number Publication date
EP1178122A2 (de) 2002-02-06
DE10032411A1 (de) 2002-01-17

Similar Documents

Publication Publication Date Title
Arbous et al. Accident statistics and the concept of accident-proneness
EP0903573A3 (de) Optode zur Bestimmung von Gasen
Tarkin et al. Implementation of case-based instruction on electrochemistry at the 11th grade level
EP4317816A1 (de) Maschinenlernvorrichtung, belüftungssteuerungsvorrichtung und belüftungssteuerungsverfahren
EP1178122A3 (de) Verfahren zur Bestimmung des Reduktions-oder Oxidationspotentials von Gasatmosphären in Bezug auf Metall-Metalloxide
EP0432840B1 (de) Festkörpersensor zur Bestimmung der Konzentration von mit Wasserstoff reaktionsfähigen Gasen
EP0492709A2 (de) Festkörpersensor zur Bestimmung der Konzentration von mit Wasserstoff reaktionsfähigen Gasen
ES8202151A1 (es) Sensor de concentracion del oxigeno.
EP2808676B1 (de) SOx-Gassensor und Verfahren zur Messung der Konzentration eines SOx-Gases
Perkinson et al. Exploring the validity of the Affect Balance Scale with a sample of family caregivers
Abbas et al. Corrosion monitoring of reinforcement steel using galvanostatically induced potential transients
McManus et al. Oxygen Levels During Welding: Assessment in an Aluminum Shipbuilding Environment
EP1221610A3 (de) CO-Sensor und Verfahren zum Messen des CO-Gehaltes
Jensen Balancing redox equations
Gorer Modification of National Character: The Role of the Police in England.
EP1280121A2 (de) Vorrichtung zur Sicherheitsüberwachung
Omizo The differential aptitude tests as predictors of success in a high school for engineering program
Nugent A validity study of two forms of the Self-Esteem Rating Scale
Matsuda et al. Emotion recognition of finger Braille
Shewhart Random sampling
Cole et al. On folk archaeology in anthropological perspective
Wolf A model of conversation
KR20260017070A (ko) 유해가스 위험 예측 모니터링 시스템
Matsuda et al. Emotion feature vector of Finger Braille
Zhang With friends like these

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020828