Be, Li, and Na Redistribution Near a Porcelain/Ni Alloy Interface Shown by Ion Microprobe Mass Analysis
- 1 February 1978
- journal article
- research article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 57 (2) , 233-236
- https://doi.org/10.1177/00220345780570021501
Abstract
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° → 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-+ ½ Oo2 → O=, and the resulting negatively charged porcelain surface attracts Li+ (and Na+).Keywords
This publication has 2 references indexed in Scilit:
- Role of “Adherence Oxides” in the Development of Chemical Bonding at Glass‐Metal InterfacesJournal of the American Ceramic Society, 1966
- Fundamentals of Glass‐to‐Metal Bonding: VIII, Nature of Wetting and AdherenceJournal of the American Ceramic Society, 1962