Published 1900 | Version v1
Book Metadata-only

Decarburization of molybdenum by annealing at low oxygen pressures

Creators

  • 1. Centre National de la Recherche Scientifique, 94 - Vitry-sur-Seine (France). Centre d'Etudes de Chimie Metallurgique

Description

The decarburization kinetics of molybdenum with different carbon contents has been studied by ultra-high vacuum techniques (quadrupole mass-spectrometry) over a wide range of temperatures (1240-1920 deg C). Plane sheets and cylindrical samples are heated under some 10-6 torr O2. The outgassing flow of CO produced as a function of time is controlled by C diffusion. The reactions kinetics allows to calculate the diffusion constant and the solubility of carbon in molybdenum for different temperatures

Abstract (French)

La cinetique de decarburation de Mo a differentes teneurs en carbone a ete etudiee par les techniques du vide (spectrographie de masse quadrupolaire) dans une large gamme de temperatures (1240-1920 deg C). On a chauffe des feuilles planes et des echantillons cylindriques sous une pression de 10-6 torr d'oxygene. On peut controler le degazage du CO forme en fonction du temps par la diffusion du carbone. La cinetique de reaction permet de calculer les constantes de diffusion et la solubilite du carbone dans Mo a differentes temperatures

Additional details

Additional titles

Original title (French)
Decarburation du molybdene par recuit sous faible pression d'oxygene

Publishing Information

Publisher
Societe Francaise du Vide.
Imprint Place
Paris, France
Imprint Title
European conference on the present trends of vacuum metallurgy
Imprint Pagination
p. 137-140.

Conference

Title
European conference on the present trends of vacuum metallurgy.
Dates
07 Oct 1975.
Place
Lille, France.

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
7251081
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CARBON; CHEMICAL REACTION KINETICS; DIFFUSION; HEAT TREATMENTS; HIGH VACUUM; MOLYBDENUM; SOLUBILITY; VERY HIGH TEMPERATURE
Descriptors DEC
ELEMENTS; KINETICS; METALS; NONMETALS; REACTION KINETICS; TRANSITION ELEMENTS

Optional Information

Notes
Imprint:Supplement to the review le Vide les Couches Minces no.177.;Conference europeenne de metallurgie sous vide. Tendances actuelles.