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

Abstract

An improved cathode structure is described 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 C can be used.

Inventors:
;
Publication Date:
OSTI Identifier:
7071162
Patent Number(s):
US 4929328; A
Application Number:
PPN: US 7-319770
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; EDB-94-116965
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 Mar 1989
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ALUMINIUM ORES; ELECTROLYSIS; CATHODES; FABRICATION; COMPOSITE MATERIALS; ELECTROLYTIC CELLS; TITANIUM BORIDES; CHEMICAL VAPOR DEPOSITION; IMPREGNATION; CORROSION RESISTANCE; FRACTURE PROPERTIES; BORIDES; BORON COMPOUNDS; CHEMICAL COATING; DEPOSITION; ELECTRODES; LYSIS; MATERIALS; MECHANICAL PROPERTIES; ORES; SURFACE COATING; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360601* - Other Materials- Preparation & Manufacture; 360201 - Ceramics, Cermets, & Refractories- Preparation & Fabrication; 320303 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes

Citation Formats

Besmann, T.M., and Lowden, R.A. Titanium diboride ceramic fiber composites for Hall-Heroult cells. United States: N. p., 1990. Web.
Besmann, T.M., & Lowden, R.A. Titanium diboride ceramic fiber composites for Hall-Heroult cells. United States.
Besmann, T.M., and Lowden, R.A. Tue . "Titanium diboride ceramic fiber composites for Hall-Heroult cells". United States.
@article{osti_7071162,
title = {Titanium diboride ceramic fiber composites for Hall-Heroult cells},
author = {Besmann, T.M. and Lowden, R.A.},
abstractNote = {An improved cathode structure is described 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 C can be used.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {5}
}