Horizon Microtechnologies, a micro AM firm, has made vital progress in validating the robustness of its proprietary steel coatings for micro AM and 3D microfabricated components. Originally of an in depth testing initiative, the corporate subjected its copper coatings (passivated utilizing a brand new methodology) to a sequence of pragmatic checks meant to emulate a number of environmental stresses that the business is often involved about. The outcomes of those checks exhibit a excessive stage of resilience – reinforcing the viability of Horizon’s know-how for demanding functions, together with electronics, RF parts, and even area programs.
Passivation is an important course of for stopping the pure growing old of metals corresponding to copper. With out safety, publicity to humidity, oxygen, and excessive temperatures can degrade copper coatings and surfaces, resulting in oxidation, lack of conductivity, and in some circumstances, compromised adhesion to underlying buildings. These considerations are significantly related in superior functions the place {the electrical} and structural integrity of steel coatings have to be maintained over lengthy durations. Whereas varied strategies exist to enhance copper’s sturdiness – corresponding to the appliance of metallic overcoats, alloying, or utilizing extra protecting movies or floor remedies – these standard options are sometimes optimized for particular half geometries or materials programs, corresponding to printed circuit boards, and aren’t essentially efficient or simple to implement for Horizon’s intricate 3D printed merchandise.
To handle this bottleneck, the corporate has developed its personal passivation course of – engineered particularly to guard copper coatings on complicated 3D printed microstructures. Recognizing the business’s considerations concerning the applicability of such coatings in non-controlled environments, the corporate initiated a sequence of inner stress checks designed to copy among the harshest environmental situations a coated part may expertise. The purpose was to find out whether or not its passivated copper coatings might face up to excessive temperatures, excessive humidity, and publicity to chemically aggressive situations, corresponding to atomic oxygen – significantly related in area functions.
The outcomes of those checks demonstrated the superior stability of Horizon’s passivated copper coating. Throughout all checks carried out – together with high-temperature publicity, extended scorching humidity, and air plasma publicity – the passivated copper coating remained visually and electrically unaffected aside from a small colour change in the course of the preliminary heating, whereas normal reference copper suffered vital degradation below the identical situations. Chilly publicity checks had been additionally carried out – the place each supplies confirmed no seen modifications.
With extra long-term testing in response to business normal check situations forthcoming, these early findings supply sturdy proof that Horizon’s passivation methodology offers substantial safety – making certain the longevity and reliability of its coated micro-AM components.
“Taken by themselves, our checks exhibit that considerations about copper growing old on 3D printed or 3D microfabricated components are largely unfounded for a big set of use circumstances when our passivation know-how is utilized and they’re an especially encouraging end result with a view to long-term stability,” stated Andreas Frölich, CEO of Horizon Microtechnologies. “By proactively addressing oxidation and degradation challenges, we’re demonstrating that our coatings are well-suited for functions requiring excessive sturdiness and environmental resistance.”