Silver Lined Ceramic Vessel and Method of Preparation.
Abstract
This invention relates to reaction vessels and more particularly high temperature reaction vessels having inert metal surfaces. Many of the component elements, oxides and nitrates used in synthesizing high temperature superconductor (HTS) compounds (and perhaps other classes of compounds) tend to react with most containment vessels during the high temperature processing required to form or sinter the materials. The noble metals are the only materials which remain essentially non-reactive under the required processing conditions. The noble metals (gold and silver) have been shown to protect the HTS compounds during thermal treatment and impart beneficial properties as additives. In achieving the purity of final HTS product necessary for high transport current, introduction of second phases during heat treatment must be minimized.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 10, 1991
- Accession Number
- ADD014953
Entities
People
- Amarnath P. Divecha
- James Kerr
- William A. Ferrando
Organizations
- United States Department of the Navy