Physical screen

Corrosion screening uses local wafer measurements before larger exposure tests.

Concept visual of a circular corrosion coating wafer with a smooth composition gradient.

Protective coating wafer

Composition changes across the wafer, so local corrosion and conductivity response can be mapped.
Concept visual of a scanning droplet cell probe over a circular wafer library.

Scanning droplet cell

Local corrosion measurements happen at selected wafer positions before larger coupon or hardware exposure.
Concept visual of protective coating sample coupons.

Protective coating coupons

Selected directions can be repeated as uniform coated coupons for the next exposure or durability test.

Decision problem

Corrosion testing is expensive when the coating space is still broad.

Protective coatings often need to balance corrosion response, abrasion-relevant behavior, conductivity, hardness, adhesion-relevant behavior, and surface change. xemX can create a physical screening campaign or a narrower prototype coating project before teams commit to larger coupon tests, hardware trials, or field exposure.

Customers can bring a coated coupon, conductive protective layer, harsh-environment surface, or hardware-validation question that needs a measured shortlist before larger exposure tests.

Screening campaign

Compare related coating variants across a controlled physical library to identify which corrosion/conductivity tradeoffs deserve larger tests.

Prototype coating project

Start from a narrower coating, coupon, substrate, or supplier question and make small-format coated samples when the route fits.

What can be measured

Composition, phase, sheet resistance, hardness or modulus, localized corrosion response, surface change, and selected interface behavior.

What comes back

Corrosion-response maps, conductivity/mechanical tradeoff maps, coating variants to avoid, and follow-up coated coupons for the next exposure test.

xemX identifies protective coating variants worth larger coupon or hardware tests. Long-duration field exposure, hardware qualification, and production transfer usually remain downstream.