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FR2250437A5 - Differential thermal analysis appts - is for materials deposited as thin films on substrate comprises two thermocouples - Google Patents

Differential thermal analysis appts - is for materials deposited as thin films on substrate comprises two thermocouples

Info

Publication number
FR2250437A5
FR2250437A5 FR7233121A FR7233121A FR2250437A5 FR 2250437 A5 FR2250437 A5 FR 2250437A5 FR 7233121 A FR7233121 A FR 7233121A FR 7233121 A FR7233121 A FR 7233121A FR 2250437 A5 FR2250437 A5 FR 2250437A5
Authority
FR
France
Prior art keywords
thermocouples
thermocouple
thin films
deposited
substrate comprises
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
FR7233121A
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7233121A priority Critical patent/FR2250437A5/en
Application granted granted Critical
Publication of FR2250437A5 publication Critical patent/FR2250437A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
    • G01N25/4846—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample
    • G01N25/4866—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a motionless, e.g. solid sample by using a differential method

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The first thermocouple (2) is in thermal contact with a sample of the body to be studied and the other (3) is in contact with a reference body. The two thermocouples are identical and are deposited on the surface of a substrate (1), typically A1203 of thickness 120 microns and diameter 25mm. The body under investigation is deposted (100) in an area making thermal contact with the thermocouple (2) which is typically gold-nickel. The thermocouple (2) may be deposited on top of the sample provided that an isolating film of e.g. Si O2 is deposited between them. The geometrical characteristics of the substrate are such that the thermal resistance between the body and the thermocouple is low and that between the two thermocouples themselves is high. Means are provided for submitting the substrate to a predetermined temperature law as a function of time.
FR7233121A 1972-09-19 1972-09-19 Differential thermal analysis appts - is for materials deposited as thin films on substrate comprises two thermocouples Expired FR2250437A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7233121A FR2250437A5 (en) 1972-09-19 1972-09-19 Differential thermal analysis appts - is for materials deposited as thin films on substrate comprises two thermocouples

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233121A FR2250437A5 (en) 1972-09-19 1972-09-19 Differential thermal analysis appts - is for materials deposited as thin films on substrate comprises two thermocouples

Publications (1)

Publication Number Publication Date
FR2250437A5 true FR2250437A5 (en) 1975-05-30

Family

ID=9104439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7233121A Expired FR2250437A5 (en) 1972-09-19 1972-09-19 Differential thermal analysis appts - is for materials deposited as thin films on substrate comprises two thermocouples

Country Status (1)

Country Link
FR (1) FR2250437A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720016A1 (en) * 1994-05-17 1995-11-24 Honda Motor Co Ltd Alloy material for thixomolding, process for preparing a semi-molten alloy material for thixomolding, and thixomolding process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720016A1 (en) * 1994-05-17 1995-11-24 Honda Motor Co Ltd Alloy material for thixomolding, process for preparing a semi-molten alloy material for thixomolding, and thixomolding process
US5849115A (en) * 1994-05-17 1998-12-15 Honda Giken Kogyo Kabushiki Kaisha Alloy material for thixocasting, process for preparing semi-molten alloy material for thixocasting and thixocasting process

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Legal Events

Date Code Title Description
ST Notification of lapse