Journal of Dental Research, Vol 57, 233-236, Copyright © 1978 by International & American Associations for Dental Research Online Journals

ARTICLES

Be, Li, and Na redistribution near a porcelain/Ni alloy interface shown by ion microprobe mass analysis

T. R. Williams, C. E. Johnson, P. G. Winchell and R. W. Philips

During porcelainization the non-preoxidized alloy develops a Be-rich reaction zone in the interface which separates a Be-depleted alloy from a Li and (to a lesser extent Na) depleted region of the ceramic. Thus, Be diffuses to the interface through the alloy Be degrees leads to Be++ + 2 e- occurs at the interface; some of the electrons are electronically conducted to the porcelain-air interface where they are consumed as 2 e- + 1/2 O degrees 2 leads to O=, and the resulting negatively charged porcelain surface attracts Li+ (and Na+).

This article has been cited by other articles:

				C. Hegedus, L. Daroczi, V. Kokenyesi, and D.L. Beke Comparative Microstructural Study of the Diffusion Zone between NiCr Alloy and Different Dental Ceramics J. Dent. Res., May 1, 2002; 81(5): 334 - 337. [Abstract] [Full Text] [PDF]