<div class="csl-bib-body">
<div class="csl-entry">Nistler, S., Hofstetter, C., Baudis, S., Schwentenwein, M., & Stampfl, J. (2025, May 14). <i>Combining Two Different Bioceramic Materials via Sinter-joining</i> [Conference Presentation]. 8th European Symposium on Biomaterials and Related Areas (BioMAT 2025), Weimar, Germany. http://hdl.handle.net/20.500.12708/216904</div>
</div>
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/216904
-
dc.description.abstract
Natural bone consists of a hard outer shell, called cortical bone, and an inner mesh-like structure, called cancellous bone. When developing bone implants, this hybrid structure should be considered. Our study focused on combining two different bioceramic materials via sinter-joining, using zirconia as mechanically strong material and hydroxyapatite or tricalcium phosphate as osteoconductive material. We produced the green parts individually with a lithography-based ceramic manufacturing process. After debinding and pre-sintering the two individual parts were joined and co-sintered to a final hybrid part. The connection is created by inducing a press-fit between the outer and inner material due to their different shrinking behaviour. We tested the sinter-joining process first on a simplified ring-in-ring design and biaxial bending plates to quantify the mechanical resistance of the hybrid part. We found a significant increase in the maximal measured force in the piston-on-three-balls test set-up from (72 ± 53) N to (366 ± 88) N for a 5% and 10% press-fit, respectively. Furthermore, we introduced sintering aids to ensure exact alignment of the two parts during co-sintering and measured the deformation after co-sintering. We continued to increase the complexity of the hybrid sinter-joined parts and resulted in successfully manufacturing a complex implant-design consisting of an outer load-bearing shell and an inner porous structure. Moreover, we investigated the interface with a scanning electron microscope and additional electron backscatter diffraction (EBSD) analysis to characterize chemical and crystallographic gradients.
en
dc.description.sponsorship
Christian Doppler Forschungsgesells
-
dc.language.iso
en
-
dc.subject
Bioceramics
en
dc.subject
Hydroxyapatite
en
dc.subject
Zirconia
en
dc.subject
Sinter-joining
en
dc.subject
EBSD
en
dc.title
Combining Two Different Bioceramic Materials via Sinter-joining
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Lithoz GmbH
-
dc.relation.grantno
CDL Baudis
-
dc.type.category
Conference Presentation
-
tuw.project.title
Christian Doppler Labor für Fortschrittliche Polymere für Biomaterialien und den 3D Druck
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.id
M6
-
tuw.researchTopic.id
M4
-
tuw.researchTopic.name
Materials Characterization
-
tuw.researchTopic.name
Biological and Bioactive Materials
-
tuw.researchTopic.name
Non-metallic Materials
-
tuw.researchTopic.value
40
-
tuw.researchTopic.value
20
-
tuw.researchTopic.value
40
-
tuw.publication.orgunit
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
tuw.author.orcid
0009-0006-9591-5749
-
tuw.author.orcid
0000-0002-5390-0761
-
tuw.author.orcid
0000-0002-2076-5575
-
tuw.author.orcid
0000-0002-3626-5647
-
tuw.event.name
8th European Symposium on Biomaterials and Related Areas (BioMAT 2025)
en
tuw.event.startdate
14-05-2025
-
tuw.event.enddate
15-05-2025
-
tuw.event.online
Hybrid
-
tuw.event.type
Event for scientific audience
-
tuw.event.place
Weimar
-
tuw.event.country
DE
-
tuw.event.presenter
Nistler, Sarah
-
wb.sciencebranch
Maschinenbau
-
wb.sciencebranch
Werkstofftechnik
-
wb.sciencebranch.oefos
2030
-
wb.sciencebranch.oefos
2050
-
wb.sciencebranch.value
20
-
wb.sciencebranch.value
80
-
item.cerifentitytype
Publications
-
item.languageiso639-1
en
-
item.fulltext
no Fulltext
-
item.openairetype
conference paper not in proceedings
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cp
-
item.grantfulltext
none
-
crisitem.project.funder
Christian Doppler Forschungsgesells
-
crisitem.project.grantno
CDL Baudis
-
crisitem.author.dept
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
crisitem.author.dept
E308-02-2 - Forschungsgruppe Werkstoffe und Additive Fertigung
-
crisitem.author.dept
E163-02-1 - Forschungsgruppe Polymerchemie und Technologie
-
crisitem.author.dept
Lithoz GmbH
-
crisitem.author.dept
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
-
crisitem.author.orcid
0009-0006-9591-5749
-
crisitem.author.orcid
0000-0002-5390-0761
-
crisitem.author.orcid
0000-0002-2076-5575
-
crisitem.author.orcid
0000-0002-3626-5647
-
crisitem.author.parentorg
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
-
crisitem.author.parentorg
E308-02 - Forschungsbereich Polymer- und Verbundwerkstoffe
