ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Chromated lead, tin, and lead/tin alloy surfaces have been characterized by x-ray photoelectron spectroscopy (ESCA) and ion microanalyzer (IMA). Also the locus of failure in dry conditions of these metal joints bonded with an ethylene-acrylic acid (EAA) copolymer has been estimated from analysis of the fractured surfaces by ESCA, IMA, and scanning electron microscopy (SEM). Cathodically chromated tin and lead/tin surfaces are almost completely covered with a corrosion-protective chromium oxide film, although immersion-chromated tin and lead/tin surfaces have considerable amounts of tin and lead oxides. In chromated tin joints having a chromate film of less than 100Å, bond failure occurs cohesively in the EAA copolymer. On the other hand, chromated tin joints having a chromate film of more than 100Å give the failure mainly at the chromate film-tin oxide interface and partly in the tin oxide.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1980.070251103
