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Title: Composition and process for making an insulating refractory material

Abstract

A composition and process for making an insulating refractory material. The composition includes calcined alumina powder, flash activated alumina powder, an organic polymeric binder and a liquid vehicle which is preferably water. Starch or modified starch may also be added. A preferred insulating refractory material made with the composition has a density of about 2.4-2.6 g/cm.sup.3 with reduced thermal conductivity, compared with tabular alumina. Of importance, the formulation has good abrasion resistance and crush strength during intermediate processing (commercial sintering) to attain full strength and refractoriness, good abrasion resistance and crush strength.

Inventors:
 [1];  [2]
  1. Murrysville, PA
  2. Apollo, PA
Issue Date:
Research Org.:
Aluminum Co. of America, Alcoa Center, PA (USA)
OSTI Identifier:
871504
Patent Number(s):
5744412
Application Number:
08/644440
Assignee:
Aluminum Company of America (Pitsburgh, PA)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
DOE Contract Number:  
FC07-89ID12903
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
composition; process; insulating; refractory; material; calcined; alumina; powder; flash; activated; organic; polymeric; binder; liquid; vehicle; preferably; water; starch; modified; added; preferred; density; 4-2; cm; reduced; thermal; conductivity; compared; tabular; importance; formulation; abrasion; resistance; crush; strength; intermediate; processing; commercial; sintering; attain; refractoriness; insulating refractory; organic polymeric; polymeric binder; reduced thermal; refractory material; thermal conductivity; organic polymer; abrasion resistance; preferably water; liquid vehicle; alumina powder; /501/

Citation Formats

Pearson, Alan, and Swansiger, Thomas G. Composition and process for making an insulating refractory material. United States: N. p., 1998. Web.
Pearson, Alan, & Swansiger, Thomas G. Composition and process for making an insulating refractory material. United States.
Pearson, Alan, and Swansiger, Thomas G. Tue . "Composition and process for making an insulating refractory material". United States. https://www.osti.gov/servlets/purl/871504.
@article{osti_871504,
title = {Composition and process for making an insulating refractory material},
author = {Pearson, Alan and Swansiger, Thomas G},
abstractNote = {A composition and process for making an insulating refractory material. The composition includes calcined alumina powder, flash activated alumina powder, an organic polymeric binder and a liquid vehicle which is preferably water. Starch or modified starch may also be added. A preferred insulating refractory material made with the composition has a density of about 2.4-2.6 g/cm.sup.3 with reduced thermal conductivity, compared with tabular alumina. Of importance, the formulation has good abrasion resistance and crush strength during intermediate processing (commercial sintering) to attain full strength and refractoriness, good abrasion resistance and crush strength.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {4}
}

Patent:

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