Accession Number:

ADP007735

Title:

Effect of Powder Characteristics on Dielectric Properties Alumina Compacts,

Descriptive Note:

Corporate Author:

CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS MADRID (SPAIN)

Report Date:

1992-04-27

Pagination or Media Count:

9.0

Abstract:

Three different submicronic alumina powders have been analyzed. The sintering and microstructural evolution of the different green compacts have been studied by dilatometry and SEM, respectively. Dense 99 th alumina samples were used for the measurement of the dielectric properties at 20 GHz. The dielectric properties have been related to the impurities content, grain size distribution, porosity, etc. The important effect of small quantities of MgO in solid solution on the microwave absorption of alumina compacts has been pointed out.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE