Composition and process for making an insulating refractory material
Patent
·
OSTI ID:644428
A composition and process are disclosed 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.
- Research Organization:
- Aluminum Company of America
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC07-89ID12903
- Assignee:
- Aluminum Co. of America, Pittsburgh, PA (United States)
- Patent Number(s):
- US 5,744,412/A/
- Application Number:
- PAN: 8-644,440
- OSTI ID:
- 644428
- Country of Publication:
- United States
- Language:
- English
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