Bond strength

Casting

Environmental chemistry

Ceramic

Composite material

Chemistry

Metallurgy

Materials science

Scanning electron microscope

Bonding strength

Layer (electronics)

Trichloroethylene

Alloy

Metal

Adhesive

Life and Medical Sciences

The aim of the study is to evaluate the effect of trichloroethylene (TCE) on the metal-ceramic bond of ‎additively manufactured and casting Co-Cr alloys. For this purpose, 84 disc-shaped (r=12 mm, h=1 mm) ‎specimens were prepared for two experimental groups (n=42) with different fabrication techniques; casting ‎and additively manufactured with Co-Cr. Before ceramic application, the disc specimens divided into two ‎subgroups (n=21): Casting and cleaned with TCE (CT), casting and not cleaned with TCE (C), additively ‎manufactured and cleaned with TCE (AT), additively manufactured and not cleaned with TCE (A). Ceramic ‎‎(h=4 mm, r=6 mm) was applied to the disc specimens (n=20) and their shear bond strength (SBS) was ‎measured. The surface morphology of disc (n=1; for each subgroup) specimens before and after TCE ‎application was analyzed with a scanning electron microscope (SEM). Results were statistically analyzed with ‎‎1-way ANOVA and the Bonferroni multiple comparisons tests (α=0.05). Significant differences were found in ‎SBS of the CT, C, AT, and A groups. CT group (21.74±1.66 MPa) showed a significantly higher SBS value ‎than the C (18.65±2.11 MPa), AT (19.07±1.75 MPa) and A (18.52±1.94 MPa) groups (p&lt;0.001). In ‎conclusion the application of the TCE increased the metal-ceramic bond of casting Co-Cr alloy. Although the ‎results were not statistically significant the TCE also increased the bond of additively manufactured Co-Cr ‎alloy.

Evaluation the Effect of Trichloroethylene on the Metal-Ceramic Bonding