UNFORTUNATELY, THIS CURRENT AFFAIRS SEMINAR WILL NOT TAKE PLACE DUE TO TOO FEW REGISTRATIONS

Chromium-6 has been a hot topic for some time now. Through a lecture evening, KIVI DV will share with you the latest developments regarding possible (partial) solutions and alternatives. These will be presented by four speakers working at NLR, TUDelft and industry, among others. Each lecture will last 20 minutes and afterwards there will be room for another 10 minutes of questions and discussion.

Prior to the lecture evening, there will be an opportunity to enjoy a sandwich meal at KIVI for a fee of 15 euros.

Speakers

1. Ludmila 't Hoen
Chromium-6 containing paint is still very common in aircraft construction. Research has been conducted for more than 20 years to develop chromium-6-free primers and surface treatments. For application on the outside of aircraft, some chromium-6 free paint systems are available. For application on the inside, where a paint system should provide 30 years of protection, it has to be demonstrated that these paint systems can do so. This experience is still lacking so chromium-6 containing paint is still the standard for aircraft interiors.
The presentation will provide an overview of the developments and the various requirements that must be met to use chromium-6 free paint on aircraft without compromising flight safety.

2. Marcel Hagens - Chemshield
Marcel Hagens of Chemshield BV will present a fully-fledged alternative to the Chrome-6-based paint systems used so far. Such a paint system should at least be able to cope with the following two problems. The occurrence of "under layer corrosion" and optimal protection against the elements. Chemshield will explain the operation of a primer that without "volatile organic compounds" (VOC), i.e. water-based, is still able to create a chemical bond to a steel or aluminium frame that excludes "under layer corrosion". In addition, Chemshield is presenting a top coat based on a fluoropolymer, which enables it to gloriously resist the influence of sun, water, salt and chemicals and temperature. Both are already available. Applied together, they are a possible full-fledged alternative to Chromium-6-based systems.

3. Paul van IJsselstein
XYREC offers a new perspective for aircraft production and maintenance with advanced, fully autonomous and sustainable robotic solutions for coating and stripping. The combined innovative strength, synergy and complementarity of XYREC's global ecosystem of partners resulted in a technological breakthrough and disruptive innovation driven by challenging business cases and market conditions. The use of robotic solutions eliminates unsafe working conditions, avoids the use of chemicals, reduces the carbon footprint (over 60%), offers higher quality and a more efficient and predictable production process. XYREC develops, manufactures and operates these robotic solutions for aircraft maintenance companies, aircraft manufacturers and specialised painting companies around the world by offering up to 50% faster turnaround times and higher fleet availability at significantly lower costs.

4. Dr Santiago J. Garcia - Senior Lecturer, Novel Aerospace Materials group, Faculty of Aerospace Engineering, Delft
Over the past decades, much research has been done on corrosion-resistant coatings that use extrinsic and intrinsic self-healing concepts. Such coatings mainly use corrosion inhibitors and nanocarriers, capsules with monomers or dynamic polymer compounds. Although progress has been made in these in recent years, most methods are still mainly suitable for protecting relatively minor damage for short periods of time. In other words; they are still far away from the more-than-effective Cr-VI-based primers; this mainly because of price or complexity.
In recent years, several new concepts have been developed within the Aerospace Engineering fact faculty that are inspired by nature or based on natural resources, but above all possess the main working principles of Cr-VI primers that make them so effective. Simultaneously, a new evaluation technique has been developed that reduces subjectivity in assessing performance. In this presentation, Dr Santiago J. Garcia will present some of the latest developments in active corrosion protection. These include solutions that use biobased or nature-inspired principles and are suitable for protecting relatively large damages (up to 1 mm width).