Accession Number:

AD0460596

Title:

HIGH TEMPERATURE ALKALI METAL RESISTANT INSULATION.

Descriptive Note:

Final rept.,

Corporate Author:

WESTINGHOUSE ELECTRIC CORP LIMA OH AEROSPACE ELECTRICAL DIV

Personal Author(s):

• Snavely, W. H.

Report Date:

1965-03-01

Pagination or Media Count:

227.0

Abstract:

The experimental work was done to determine the effects of a combined environment on electrical conductors, ceramic insulators, potting compounds, and magnetic materials. The test environment combined 600 C saturated potassium vapor and electrical and fluctuating magnetic fields. The test devices were transformers fabricated from materials that had resistance to the corrosive action of saturated K vapor at elevated temperatures. Materials were exposed to 600 C and 850 C saturated K. Corrosion data were obtained. Materials to fabricate test transformers were selected by evaluating the K corrosion information. Two types of electrical terminal seals resistant to 600 C K vapor were developed. The electrical properties of these terminal seals in saturated K vapor at 600 C were determined. The seals were used to fabricate suitable K vapor test capsules for the test transformers. Transformers were fabricated and electrically tested in 300 and 600 C saturated K vapor. The test data obtained at a given elevated temperature in vacuum or Ar were compared with identical temperature points in saturated K vapor. Author

Descriptors:

• *ELECTRICAL CONDUCTIVITY
• *CORROSION INHIBITION
• *POTASSIUM
• MATERIALS
• COMPATIBILITY
• TRANSFORMERS
• CORROSIVE GASES
• CORROSION
• ELECTRICAL INSULATION
• CERAMIC MATERIALS
• MAGNETIC MATERIALS
• EMBEDDING SUBSTANCES
• ELECTRIC TERMINALS
• METAL SEALS
• HERMETIC SEALS
• BRAZING
• HIGH TEMPERATURE
• THERMAL INSULATION
• ENCAPSULATION
• VAPORS
• MAGNETIC FIELDS
• ELECTRIC FIELDS

Subject Categories:

• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE