Accession Number:

AD0736026

Title:

Thermal Expansion Measurements in the Nb2O5-Ta2O5 System,

Descriptive Note:

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Report Date:

1971-12-15

Pagination or Media Count:

26.0

Abstract:

Optical interferometry and x-ray diffractometry have been used to measure the thermal expansion of selected compositions in the Nb2O5 - Ta2O5 system. A 70 wt Nb2O5 - 30 wt Ta2O5 composition has a coefficient of thermal expansion of 0.12 X 10 to the minus 6th power in the temperature range 22 to 346C. Coefficients of thermal expansion for three orthogonal directions of 99.9 pure Nb2O5 were measured over two temperature ranges. Author

Subject Categories:

  • Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE