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YCN Newsletter 18 - Research in Spot
Thermal debinding is the processing bottleneck of ceramic stereolithography based printing technologies.
The challenge of long processing time has been studied by i.e., microwave-assisted debinding, solvent extraction and optimizing the debinding program, but ways to shorten the debinding time are limited due to large binder content in slurry recipes.
A way to enable faster thermal debinding of stereolithography (SLA) printed parts is to create gas flow channels within the ceramic part structure, so that polymerized binders can exit through them in gaseous form without causing flaws. These channels can be created by extraction of certain substances prior to thermal debinding. I am currently working on development of ceramic slurries suitable for both SLA printing and pre-debinding with supercritical carbon dioxide extraction. The aim is to be able to extract enough chemicals to create interconnected porosity and thus enable faster heating rates and shorter dwell times in thermal debinding programs.
This might lead us to significantly shorter processing times of i.e., SLA printed dental prostheses. This research topic got positive feedback at the ECerS 2023 conference, where I was granted the 1st prize at the Shen-Kosmač speech contest in ‘Clinical Applications of Ceramics and Technologies in Dentistry’ Satellite Symposium.
Portrait image by Nea Alanen
SEM image by Milla Rinne
SEM image caption: Secondary electron images of alumina SLA print fracture surfaces with recipes a) unsuitable and b) suitable for supercritical carbon dioxide extraction.
Nonna Nurmi
Doctoral Researcher
Department of Materials Science and Environmental Engineering
Tampere University, Tampere, Finland
Last news
YCN Newsletter 31 - Event Overview - Ceramitec 2026 by YCN Committee member Petar Kotevski
YCN’s participation at ceramitec 2026 in Munich from 24th to 26th of March 2026, represented a key step in strengthening ties between young ceramic professionals, academia, and industry. The exhibition provided an international setting where research, innovation and industrial application converge, enabling meaningful engagements. Our main objective was to position YCN as an active interface connecting early-career professionals with industry leaders.
YCN Newsletter 31 - Research in Spot - Naser Hosseini
Interface Engineering: High-Temperature Interactions Between High-Entropy Ceramics and Metals.
My research explores high-temperature interactions between high-entropy ceramics (HECs) and metals, with a focus on joining strategies for extreme environments. By understanding how metals wet and react with these advanced ceramics, I aim to design reliable interfaces for applications such as composites, coatings, and ceramic joining with functional properties. This work contributes to improving the performance and durability of materials used in demanding industries such as energy, aerospace, and advanced manufacturing.
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