Accession Number : AD0436536


Title :   PRODUCTION ENGINEERING MEASURE FOR COLUMBIUM CAPACITORS.


Descriptive Note : Quarterly rept. no. 2, 26 Sep-26 Dec 63,


Corporate Author : SPRAGUE ELECTRIC CO NORTH ADAMS MASS


Personal Author(s) : Folster,J H D ; Holley,E E ; Whitman,A


Report Date : 26 Dec 1963


Pagination or Media Count : 13


Abstract : In this quarter, construction of three of the four ratings required for the preproduction sample was begun. Construction on the fourth will begin shortly. Study of aging conditions milder than those normally employed revealed that varying the voltage and temperature aging parameters apparently does not affect the final capacitance, dissipation factor, and leakage current readings on a capacitor. This finding resulted from a matrix study. To obtain more conclusive results, another matrix is planned during the next quarter in which the best parameters of the first matrix will be incorporated. The first matrix also revealed that following aging bias-read and nonbias-read values of capacitance and dissipation factor are practically equal. The most recent data from the continuing reanodization studies indicate that multiple reanodizations improve the dissipation factors of 330 microfarads -6 V and 33 microfarads -10 V capacitors. (Author)


Descriptors :   *FIXED CAPACITORS , NIOBIUM , MANUFACTURING , PRODUCTION , AGING(MATERIALS) , VOLTAGE , TEMPERATURE , CAPACITORS , LIFE EXPECTANCY(SERVICE LIFE)


Distribution Statement : APPROVED FOR PUBLIC RELEASE