Gilberto De Freitas Siqueira

Title: Gilberto De Freitas Siqueira: Innovator in Additive Manufacturing of Silica Aerogel Objects

Introduction

Gilberto De Freitas Siqueira is a notable inventor based in Zurich, Switzerland. He has made significant contributions to the field of additive manufacturing, particularly in the development of silica aerogel objects. His innovative work has led to the creation of a unique ink composition that enhances the manufacturing process of these lightweight materials.

Latest Patents

Gilberto holds a patent for an "Additive manufacturing of silica aerogel objects." This patent describes an ink composition that consists of a gellable silica sol mixed with a mesoporous silica powder. The composition is designed to have specific properties, including a yield stress ranging from 30 to 3000 Pa and a viscosity of 5 to 150 Pa·s at a shear rate of 50 s-1. The innovative aspect of this composition lies in its shear thinning properties, which allow for a significant reduction in viscosity with an increase in shear rate. This enables the effective formation of three-dimensional silica aerogel objects through a direct ink writing method.

Career Highlights

Gilberto is associated with Empa Eidgenössische Materialprüfungs- und Forschungsanstalt, where he continues to advance research in material science. His work focuses on the intersection of additive manufacturing and aerogel technology, contributing to the development of new applications for these materials.

Collaborations

He collaborates with esteemed colleagues such as Shanyu Zhao and Wim Malfait, who share his passion for innovation in material science. Their combined expertise fosters a dynamic research environment that encourages groundbreaking discoveries.

Conclusion

Gilberto De Freitas Siqueira's contributions to the field of additive manufacturing and silica aerogel technology highlight his role as a leading inventor. His innovative patent and collaborative efforts continue to push the boundaries of material science, paving the way for future advancements.