The prestigious international journal SMALL, edited by Wiley, has featured our work on its cover.
In this paper we introduce a novel concept of controlling and guiding the corrosion process of a material through a laser treatment. After the treatment, the degradation is no longer random and unpredictable, but progresses towards the designed regions and directions. Applications like batteries, biodegradable implants or cathodic protection systems may benefit from such a controlled and tailored corrosion.
Want to know what is additive manufacturing? Open this new book and dive into a fascinating world of making parts with light.
This new book entitled “Additive manufacturing”, edited by our group and Prof. Paulo Davim (Universidade de Aveiro), sheds light on 3D and 4D printing, rapid prototyping, laser-based additive manufacturing, advanced materials, and postprocessing in additive manufacturing.
Additive manufacturing (AM) has become the new paradigm of manufacturing and promises to revolutionize industry due to its endless range of applications. Rather than a new manufacturing process, this is a collection of technologies where parts are built up by adding material in a layer-wise fashion according to a predefined geometry extracted from a 3D computerized model.
The prestigious William Maxwell Steen Award has been awarded to our group by Laser Institute of America in recognition to significant developments in laser material processing. The award was presented online during the 2020 edition of the International Conference on Lasers and Electro-Optics (ICALEO).
The LaserON research group from the University of Vigo won first place in this prestigious international award ahead of the NIST (National Institute of Standards and Technology) (USA) and the laser technology company PRECITEC (Germany), who came in second and third respectively.
The innovation that is the object of the award is a process invented and patented by the researchers of the LaserON group that allows, for the first time, to obtain glass nanofibers without limitation of length. The process has been called Cofiblas (Continuous fiberizing by laser melting).
Continuous fiberizing by laser melting (Cofiblas) published in SCIENCE ADVANCES
We present an innovative method that produces glass nanofibers with lengths that are, effectively, unlimited by the process. The method uses a combination of a high-power laser with a supersonic gas jet. This method enabled the production of virtually unlimited long, solid, and nonporous glass nanofibers that display outstanding flexibility and could be separately arranged and weaved.
The American Ceramic Society has recognized the quality of our work with the “Best paper award 2019”. The award was presented during the Materials Science and Technology 2019 Congress in Portland (USA) for the paper “UV absorption of natural hydroxyapatite-based sunscreen through laser ablation modification in liquid”.
Our chapter on “Laser surface texturing of thermoplastics to improve biological performance” has been just released as part of the book “Materials for Biomedical Engineering: Thermoset and thermoplastic polymers” edited by Valentina and Alexandru Grumezescu and published by Elsevier.
Would you like to see how superhydrophilic or superhydrophobic surfaces behave?
Have a look at this video. Surfaces have been treated by our patented laser surface texturing method. Just one step allows completely transforming surface wettability of stainless steel.
Be up to date of the latest developments on Laser Additive Manufacturing by reading our chapter on “Laser Additive Manufacturing Processes for Near Net Shape Components”
that appears on the book “Near Net Shape Manufacturing Processes,” edited by Dr. Kapil Gupta. The book has been published by Springer Nature Switzerland.
The international scientific journal Applied Surface Science, features our work on laser surface texturing on the cover of the 1st of May 2019 issue. The paper entitled “Laser texturing of stainless steel under different processing atmospheres: From superhydrophilic to superhydrophobic surfaces” shows the results of an experimental work on the modification of the wettability of stainless steel surfaces from superhydrophilic to superhydrophobic using a one step process based on the use of a nanosecond pulsed laser. The capability to produce either superhydrophobic or superhydrophilic surfaces with a single tool can find an application in the generation of wettability patterns or gradients to enhance pool boiling heat transfer or to selectively promote/prevent the adhesion of cells/bacteria on implants and other biomedical devices.
We have been invited by Drs Valentina and Alexandru Grumezescu to write a chapter on nanofibers for the new book “Materials for Biomedical Engineering: Inorganic Micro and Nanostructures”. Chapter 10 “Bioactive glass nanofibers for tissue engineering” is an overview of this new type of biomaterials including our bioactive glass nanofibers produced by the Laser Spinning technique developed and patented by our group.
The book has been published by Elsevier.
Our work on production of bioactive glass nanofibers feature on the cover of the Advanced Functional Materials journal.
The World TechConnect Conference held in Washington DC (USA), has chosen our nice nanofibers produced by our patented technique Laser Spinning as cover for the whole collection of Proceedings of the 2014th edition of the conference.
As stated in the description of the cover figure: “This is a new method developed in our group, Laser Spinning, for the production of very long amorphous ceramic nanofibers with lengths up to several centimeters. This technique allows large quantities of nanofibers to be made with specific, controllable chemical compositions; including some compositions that cannot be formed into nanofibers using any other technique. This technique employs a laser to melt a small volume of a solid precursor material while a high pressure gas jet drags it. Thus, the molten material forms glass fibers as a result of its rapid elongation and cooling by the gas jet. Then it forms fibers with diameters in the range from tens of nanometers up to several microns. The composition of the fibers can be tailored for different applications such as biomaterials or refractory nanofibers”.
If you are interested in laser materials processing, you can find advances in technology, research and applications in the book “Advances in Laser Materials Processing”, that we published together with other three colleagues from Canada, Singapur and UK.