Accession Number:

ADD012352

Title:

Method for Preparing PB-Beta' '-Alumina Ceramic.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

Report Date:

1986-04-29

Pagination or Media Count:

4.0

Abstract:

A process is disclosed for preparing impermeable, polycrystalline samples of Pb-beta-alumina ceramic from Na-beta-alumina ceramic by ion exchange. The process comprises two steps. The first step is a high-temperature vapor phase exchange of Na by K, followed by substitution of Pb for K by immersing the sample in a molten Pb salt bath. The result is a polycrystalline Pb-beta-alumina ceramic that is substantially crack-free.

Subject Categories:

  • Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE