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Title: Device for determining carbon activity through pressure

Abstract

A hollow iron capsule of annular shape having an interior layer of Fe.sub.0.947 0 and a near absolute internal vacuum is submersed within a molten metal with the inner chamber of the capsule connected to a pressure sensor. Carbon present in the molten metal diffuses through the capsule wall and reacts with the Fe.sub.0.947 0 layer to generate a CO.sub.2 --CO gas mixture within the internal chamber. The total absolute pressure of the gas measured by the pressure sensor is directly proportional to the carbon activity of the molten metal.

Inventors:
 [1]
  1. Lombard, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
862472
Patent Number(s):
3941566
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
device; determining; carbon; activity; pressure; hollow; iron; capsule; annular; shape; interior; layer; 947; near; absolute; internal; vacuum; submersed; molten; metal; inner; chamber; connected; sensor; diffuses; wall; reacts; generate; -co; gas; mixture; total; measured; directly; proportional; inner chamber; molten metal; gas mixture; pressure sensor; directly proportional; absolute pressure; annular shape; internal chamber; /436/73/422/

Citation Formats

Roche, Michael F. Device for determining carbon activity through pressure. United States: N. p., 1976. Web.
Roche, Michael F. Device for determining carbon activity through pressure. United States.
Roche, Michael F. Thu . "Device for determining carbon activity through pressure". United States. https://www.osti.gov/servlets/purl/862472.
@article{osti_862472,
title = {Device for determining carbon activity through pressure},
author = {Roche, Michael F},
abstractNote = {A hollow iron capsule of annular shape having an interior layer of Fe.sub.0.947 0 and a near absolute internal vacuum is submersed within a molten metal with the inner chamber of the capsule connected to a pressure sensor. Carbon present in the molten metal diffuses through the capsule wall and reacts with the Fe.sub.0.947 0 layer to generate a CO.sub.2 --CO gas mixture within the internal chamber. The total absolute pressure of the gas measured by the pressure sensor is directly proportional to the carbon activity of the molten metal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

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