The bond strength of the Tantaline surface was measured by Sturbridge Metallurgical Services a standard bond strength test methods utilized to measure the bond strength of ceramic coatings. Utilizing this technique, two mandrels are prepared with a 1” diameter flat surface that could be attached and pulled by an Instron. On one mandrel a 316 stainless steel surface is treated with the Tantaline surface alloy. On the second mandrel surface it is left as a blank 316 stainless steel surface. The mandrels are placed together end to end with a strong polyamide-epoxy adhesive (Cytex FM1000) between them and cured. Once the adhesive is cured the mandrels are pulled apart in the Instron at a specific rate to measure the PSI needed for failure.
Baseline adhesive samples range from 10000 - 12000psi. This is the force needed to fracture the adhesive.
Tantaline samples failed at 11,282psi and 12,307psi.
As a result it is fair to conclude that the Tantaline surface at least has a bond strength as good as the baseline adhesive which averages around 11000 psi which we feel is excellent, although the true bond strength of the Tantaline surface is still confounded by the adhesive and may be greater.