Accession Number:

AD0813989

Title:

STABLE FERRITES FOR R.F. APPLICATIONS.

Descriptive Note:

Rept. no. 9 (Final) 1 Jul-31 Dec 66,

Corporate Author:

INDIANA GENERAL CORP KEASBEY NJ RESEARCH DEPT

Personal Author(s):

• O'Neill, Charles F.
• Tenzer, R. K.

Report Date:

1967-04-01

Pagination or Media Count:

92.0

Abstract:

Material MF-9003 was further developed. Silicate additives, notably bentonite, were found to generally improve the stability of initial permeability and Q. A major problem found associated with the silicate additions was a severe change of Q with temperature. Divalent iron was very closely related to it. Too much divalent iron results in a considerable loss of Q with decreasing temperature and too little divalent iron results in a considerable increase in Q with decreasing temperature. The silicate containing materials were further improved by adding thorium nitrate. Cup core properties were evaluated in comparison with toroidal properties and a very favorable correlation was found. Overall, material MF-9060 containing lead silicate and thorium nitrate, is probably the best material developed.

Descriptors:

• (*FERRITES
• STABILITY)
• PERMEABILITY
• RESONANCE
• NICKEL ALLOYS
• ZINC ALLOYS
• ADDITIVES
• SILICATES
• CLAY
• IRON ALLOYS
• LEAD COMPOUNDS
• THORIUM COMPOUNDS
• NITRATES
• TEMPERATURE
• RADIOFREQUENCY

Subject Categories:

• Inorganic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE