Study on ion-coating surface treatment of dental alloys for adhesion. Part 1. Effect of Cu target on precious alloys.
- 1 January 1988
- journal article
- abstracts
- Published by Japan Prosthodontic Society in Nihon Hotetsu Shika Gakkai Zasshi
- Vol. 32 (1) , 181-188
- https://doi.org/10.2186/jjps.32.181
Abstract
Ion sputtering is a phenomenon in which ions or other high energy particles strike at a target electrode causing emission of atoms from the electrode. It takes placein a grow discharge in a relatively low vacuum chamber. We studied the application of this phenomenon to surface treatment of dental precious alloys for adhesion.Nine pure metals were examined the aptitude as a target which was the source of metal oxide supply. As the result of adhesion endurance test, Cu target showed favorableadhesive strength, and following studies were conducted applying Cu target. In the next study to decide the optimum ion coating time, best result was obtained by 10 minutes treatment.Type IV and Au-Ag-Pd alloys ion coated for 10 minutes with Cu target showed excellent adhesive durability in endurance test and after subjection to thermal cycling of 50, 000 times, adhesive strength of above 250 kgf/cm2 were maintained.Keywords
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