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Title: MATERIALS FOR HIGH TEMPERATURE NUCLEAR ENGINEERING APPLICATIONS. Quarterly Report No. 2, July 1 to October 1, 1962

Abstract

More detailed studies were made of the effects of steam on the firing behavior of slip-cast fused silica. The results of this firing profile study were highly erratic and indicated that the tube furnace was not suitable for steam firing. Determination of the compressive strength of slipcast fused silica was completed. The maximum compressive strength ranged from 21,000 psi at a firing temperature of 2100 deg F to 29,500 psi at 2300 deg F. The bulk density changes in slip-cast fused silica were expressed mathematically. An analysis indicated that the activation energy for sirtering of slip-cast fused silica is 68.6 kcal per mole. A statistical study was made of the effects of 0.1 and 1 wt% additions of Baymal on the ignltion characteristics of 14.6 wt% Al--U/sub 3/O/sub 8/ composites. The effects of U/sub 3/O/sub 8/ particle size were studied in 25 wt% Al--U/sub 3/O/sub 8/ composites. Only the --325 mesh U/sub 3/O/sub 8/ showed significartly differert igrition characteristics, yielding decreased ignition temperatures and increased differential thermal analysis peak areas. One differertial thermal analysis furnace was converted to chromel--alumel thermocouples to give increased sensitivity. Fifty wt% Al--U/sub 3/O/sub 8/ composites were pressed using dead-burned'' U/sub 3/O/sub 8/, and differential thermalmore » analysis was applied to the pellets using various standards. (R.J.S.)« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Georgia Inst. of Tech., Atlanta. Engineering Experiment Station
OSTI Identifier:
4735219
Report Number(s):
TID-17530
NSA Number:
NSA-17-008814
DOE Contract Number:  
AT(40-1)-2483
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
METALS, CERAMICS, AND OTHER MATERIALS; ALUMINUM; BUILDING MATERIALS; COMBUSTION; DENSITY; DTA; EXPANSION; FIRING; FURNACES; FUSED SALTS; GRAIN SIZE; HEATING; HIGH TEMPERATURE; IMPURITIES; MEASURED VALUES; PELLETS; REPORT; SENSITIVITY; SILICON OXIDES; SINTERING; STEAM; TEMPERATURE; TENSILE PROPERTIES; THERMOCOUPLES; THERMODYNAMICS; TUBES; U3O8

Citation Formats

Fleming, J D, Johnson, J W, Boland, P, Bomar, S H, and Colcord, A R. MATERIALS FOR HIGH TEMPERATURE NUCLEAR ENGINEERING APPLICATIONS. Quarterly Report No. 2, July 1 to October 1, 1962. United States: N. p., 1963. Web.
Fleming, J D, Johnson, J W, Boland, P, Bomar, S H, & Colcord, A R. MATERIALS FOR HIGH TEMPERATURE NUCLEAR ENGINEERING APPLICATIONS. Quarterly Report No. 2, July 1 to October 1, 1962. United States.
Fleming, J D, Johnson, J W, Boland, P, Bomar, S H, and Colcord, A R. Thu . "MATERIALS FOR HIGH TEMPERATURE NUCLEAR ENGINEERING APPLICATIONS. Quarterly Report No. 2, July 1 to October 1, 1962". United States.
@article{osti_4735219,
title = {MATERIALS FOR HIGH TEMPERATURE NUCLEAR ENGINEERING APPLICATIONS. Quarterly Report No. 2, July 1 to October 1, 1962},
author = {Fleming, J D and Johnson, J W and Boland, P and Bomar, S H and Colcord, A R},
abstractNote = {More detailed studies were made of the effects of steam on the firing behavior of slip-cast fused silica. The results of this firing profile study were highly erratic and indicated that the tube furnace was not suitable for steam firing. Determination of the compressive strength of slipcast fused silica was completed. The maximum compressive strength ranged from 21,000 psi at a firing temperature of 2100 deg F to 29,500 psi at 2300 deg F. The bulk density changes in slip-cast fused silica were expressed mathematically. An analysis indicated that the activation energy for sirtering of slip-cast fused silica is 68.6 kcal per mole. A statistical study was made of the effects of 0.1 and 1 wt% additions of Baymal on the ignltion characteristics of 14.6 wt% Al--U/sub 3/O/sub 8/ composites. The effects of U/sub 3/O/sub 8/ particle size were studied in 25 wt% Al--U/sub 3/O/sub 8/ composites. Only the --325 mesh U/sub 3/O/sub 8/ showed significartly differert igrition characteristics, yielding decreased ignition temperatures and increased differential thermal analysis peak areas. One differertial thermal analysis furnace was converted to chromel--alumel thermocouples to give increased sensitivity. Fifty wt% Al--U/sub 3/O/sub 8/ composites were pressed using dead-burned'' U/sub 3/O/sub 8/, and differential thermal analysis was applied to the pellets using various standards. (R.J.S.)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1963},
month = {10}
}

Technical Report:
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