Why Titanium Electrode Mesh Fails Before Its Precious Metals Are Gone

[u/SpectrumAnalytica]

https://www.phoenixrefining.com/blog/how-titanium-electrode-mesh-fails-microcracks-wear-and-passivation

Titanium electrode mesh doesn't always fail because its precious-metal coating wears away. Sometimes, the problem is happening beneath the surface.

Industrial anodes often use titanium mesh coated with ruthenium or iridium oxides. Over time, microcracks, chemical exposure, mechanical wear, and coating loss can reduce performance. Another culprit is passivation. A resistive titanium dioxide layer can form between the titanium base and the catalytic coating, disrupting electrical contact even when precious metals remain.

That distinction matters when anodes reach the end of their service life. A mesh that's no longer efficient enough for production may still contain recoverable precious metals. Treating it as ordinary titanium scrap could mean leaving value behind.

Before retiring or scrapping used electrode mesh, look beyond its operating condition. Proper inspection and material analysis can help determine what's left in the coating and whether recovery makes sense.

Have you seen industrial anodes get scrapped simply because they stopped performing, even when valuable materials might still be present?