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Title: Titanium diboride ceramic fiber composites for Hall-Heroult cells

Abstract

An improved cathode structure for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 deg. C can be used.

Inventors:
 [1];  [1]
  1. (Knoxville, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
867407
Patent Number(s):
4929328
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
titanium; diboride; ceramic; fiber; composites; hall-heroult; cells; improved; cathode; structure; electrolytic; production; aluminum; metal; preform; base; material; infiltrated; electrically; conductive; chemical; vapor; infiltration; techniques; exhibits; fracture; toughness; sufficiently; resistant; attack; molten; typically; mat; purity; silicon; carbide; fibers; carbon; degrade; temperatures; below; 1000; deg; cathode structure; carbide fibers; temperatures below; titanium diboride; electrolytic production; carbon fibers; carbon fiber; fracture toughness; chemical vapor; electrically conductive; silicon carbide; base material; ceramic fiber; fiber composite; fiber composites; base mat; aluminum metal; purity silicon; molten aluminum; structure exhibits; vapor infiltration; hall-heroult cells; fiber base; diboride ceramic; /204/427/428/501/

Citation Formats

Besmann, Theodore M., and Lowden, Richard A. Titanium diboride ceramic fiber composites for Hall-Heroult cells. United States: N. p., 1990. Web.
Besmann, Theodore M., & Lowden, Richard A. Titanium diboride ceramic fiber composites for Hall-Heroult cells. United States.
Besmann, Theodore M., and Lowden, Richard A. Mon . "Titanium diboride ceramic fiber composites for Hall-Heroult cells". United States. https://www.osti.gov/servlets/purl/867407.
@article{osti_867407,
title = {Titanium diboride ceramic fiber composites for Hall-Heroult cells},
author = {Besmann, Theodore M. and Lowden, Richard A.},
abstractNote = {An improved cathode structure for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 deg. C can be used.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

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