HIGH TEMPERATURE CERAMIC DIELECTRICS
Abstract
Life test data on BaTiO3-dielectrics, stabilized by continuous fluorination is discussed. Failures in the first half of the test period can be correlated to the lower dc-resistivity, produced by over-fluorination during the recharging periods of the tunnel kiln. A new series of BaTiO3-bodies, containing NiO additions are characterized by a moderate high temperature stability and a rather slow decrease of the dielectric constant with increasing NiO-content. Results of an extensive study of the F treatment of Al2O3-bodies indicates application of this process for the purification of raw materials or fired bodies by the formation of fluorides with high vapor pressure and softening of the fired bodies to allow easy grinding to high tolerances and subsequent rehardening by a second firing treatment. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1961
- Accession Number
- AD0267094
Entities
People
- P.a. Jr. Marshall
- W.r. Buessem