Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Radiographic Test for Electrodeposit Porosity.

Authors
Cramer-SD; Cammarota-VA Jr.; Schlain-D
Source
NTIS: PB 194 078 :17 pages
Link
NIOSHTIC No.
10009089
Abstract
A nondestructive procedure for measuring electrodeposit porosity has been developed which records the location and number of deposit defects including pores, pits, and voids. The procedure involves the passage of an x-ray beam through the deposit-substrate system onto suitable film. The defects are recorded as images on the film. Variables studied included intensity and spectra of the x-ray beam, composition and thickness of deposit and substrate, film type and developing procedure, and limits for detecting defects. At an x-ray tube voltage of 40-kv, pores several mils thick were easily detected in copper-nickel specimens more than 20 mils thick. To illustrate the utility of the procedure, the effect of substrate oxidation and of current density on electrodeposit porosity was briefly studied.
Publication Date
19700101
Document Type
IH; Report of Investigation;
Fiscal Year
1970
NTIS Accession No.
PB-194078
NTIS Price
A03
Identifying No.
RI 7419
NIOSH Division
CPRC;
Source Name
NTIS: PB 194 078
TOP