Young Ceramics Networks
News
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 32 - Expert opinion - Maria Paula da Silva Seabra - CICECO, University of Aveiro
Turning Waste into Raw Materials for the Ceramic Industry.
Waste materials were once seen as a burden but are increasingly being redefined as valuable resources for ceramic production. Through advances in materials engineering, waste can be used as secondary raw materials in the ceramic industry. This shift enables more circular and resource-efficient ceramic manufacturing systems.
YCN Newsletter 32 - Industry in Spot - Dr. Daniel Bomze - Lithoz
Implementing 3D-Printed Technical Ceramics in Regulated Medical Fields.
Bringing a new manufacturing technology into medicine requires far more than producing an impressive component. In highly regulated fields, innovation must be translated into repeatable processes, documented quality, reliable materials and, ultimately, evidence of clinical value. Lithoz has spent more than a decade building this bridge for Lithography-based Ceramic Manufacturing (LCM).
Information
Contact us for any information: youngceramists@ecers.org - We will respond to your inquiry as soon as possible!
ECerS office
Av. Gouverneur Cornez , 4
7000 Mons
Belgium