Solid State Diffusion Coating TRIZ Cases

A surface conditioning composition disperses ultra-fine zinc compound particles using phosphoric acid and an amine compound to stabilize the suspension.

A steel member surface treated with a controlled oxide film accelerates carbon diffusion under vacuum conditions.

Replacing hexavalent chromium with trivalent chromium and nicotinic acid creates durable yellow passivation layers while eliminating health risks.

A bainitic steel gear uses boron and niobium to form a hardened surface layer.

Interjoining titanium diboride with a heated substrate prevents delamination and geometry distortion while enhancing wear resistance.

Zinc-fluoride conversion coating prevents hexavalent chromium toxicity while maintaining corrosion resistance on aluminum surfaces.

Thermally grown oxide barriers suppress nickel volatilization during solutioning, maintaining gamma phase homogenization and turbine blade shape integrity.

A titanium surface treatment process uses a gas mixture to generate reactive nitrogen species that diffuse into the alloy for uniform hardening.

Periodic acetylene dosing resolves the contradiction between high temperature process speed and precise carbon concentration gradient control.

A nitriding treatment forms a gamma prime phase-rich iron nitride compound layer on steel members.

Core-shell particles with magnetic cores and oxide shells achieve high-frequency absorption in the 8-18 GHz band without excessive thickness.

A non-crystalline oxide coating improves corrosion resistance while maintaining magnetic properties, reducing material costs compared to stainless steel.

Direct CO2 laser irradiation fabricates pure TiO2 films, eliminating complex chemical processes and high-temperature furnaces.

Annealing steel with 0.3 to 1.5 wt% titanium in nitrogen creates a TiN surface layer, eliminating expensive vacuum equipment and peeling issues.

A hybrid nanostructure of oxidized nanoparticles and nanoflakes on aluminum maintains persistent hydrophilicity while resisting aging effects.

Silicon oxide and titanium oxide layers prevent hydrogen sulfide penetration and film peeling, enhancing reliability of high-temperature equipment.

Segmented grates apply direct thermal radiation to equalize temperatures, preventing thermal distortions during batch carburizing.

A steel composition prevents austenite grain coarsening during carburizing.