Properties of Glasses in the System SiO2-B203-BaO,

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Abstract:

The microhardnesses of the glasses were determined with a PMT-3 apparatus with 100 gram loads. Three parallel determinations were made for each sample to arrive at the average value. The microhardnesses of the glasses range from 440 to 560 kgsq and increases with an increase in the SiO content. From the characteristics of the microhardnesses, the glasses can be placed in the category of the usual industrial compositions. The low coefficient of thermal expansion makes it possible to recommend individual compositions for production on the basis of the indicated system of heat-resistant glasses. Author

Author(s):
Mazurenko, V. D.
Author Organization(s):
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Supplementary Note:
Unedited rough draft trans. of mono. Sintez Stekol i Silikatnykh Materialov, (Synthesis of Glasses and Silicate Material) 1963 p14-18.
Annotation:
Properties of Glasses in the System SiO2-B203-BaO--Translation.
Pagination:
0008

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FTD-HC-23-2144-71
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*GLASS, PHYSICAL PROPERTIES), HARDNESS, THERMAL EXPANSION, SILICON DIOXIDE, BORON COMPOUNDS, BARIUM COMPOUNDS, OXIDES, USSR
Field(s)/Group(s):
Ceramics, Refractories and Glass
Keyword(s):
BARIUM OXIDES, BORON OXIDES, *BOROSILICATE GLASS, TRANSLATIONS
Report Date:
1972 Mar 14