Accession Number:

ADA018222

Title:

Production Engineering Measures to Manufacture Super Fine Finish Beryllia.

Descriptive Note:

Quarterly progress rept. no. 5, 1 Jul-30 Sep 75,

Corporate Author:

BRUSH WELLMAN INC CLEVELAND OHIO

Personal Author(s):

• Rees,Glenn H.

Report Date:

1975-10-10

Pagination or Media Count:

17.0

Abstract:

Retesting of 1 MHz, 100 C loss tangent has confirmed the value to be between 6.6 and .000127 which is higher than anticipated. Although data are incomplete, it has been suggested that a peak relationship between loss tangent and frequency exists. The peak position just below 1 MHz shifts higher with increasing temperature. Such a relationship is common for certain other dipolar dielectrics. Author

Descriptors:

• *Beryllium oxides
• *Substrates
• *Production engineering
• *Dielectrics
• Manufacturing
• Surface properties
• Abrasion
• Frequency
• High temperature
• High frequency
• Dielectric properties
• Losses
• Microcircuits

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE