Event Title
Scaffold Manufacturing by 3D Printing: Cobalt Chrome - Hydroxyapatite Biocomposite
Location
CSU Ballroom
Start Date
10-4-2018 10:00 AM
End Date
10-4-2018 11:30 AM
Student's Major
Automotive and Manufacturing Engineering Technology
Student's College
Science, Engineering and Technology
Mentor's Name
Kuldeep Agarwal
Mentor's Department
Automotive and Manufacturing Engineering Technology
Description
Scaffolds are 3D biocompatible structures that mimic the extracellular matrix properties (mechanical support, cellular activity and protein production) of bones and provide place for cell attachment and bone tissue formation. Their performance depends on chemistry, pore size, pore volume, and mechanical strength. Recently, additive manufacturing (AM) has been used as a means to produce these scaffolds. This project explores a new biocomposite manufactured using Binder Jet AM process. Cobalt Chrome and hydroxyapatite are combined to form a composite and used in different volume fractions to produce parts with varying densities. Layer thickness, sintering time and sintering temperature are varied to study the effect of process parameters on the microstructure, dimensions and mechanical properties of the resulting structure. It is found that the resulting biocomposite can be tailored by varying the process to change its properties and mimic the properties of scaffolds in bone tissue applications. The Binder jet process involves multiple nozzles depositing very fine droplets of binder which interacts with the powder material. This interaction can affect the geometry and the resulting properties in multiple ways. This project explores this interaction and shows how this process can be used in the future of scaffold manufacturing.
Scaffold Manufacturing by 3D Printing: Cobalt Chrome - Hydroxyapatite Biocomposite
CSU Ballroom
Scaffolds are 3D biocompatible structures that mimic the extracellular matrix properties (mechanical support, cellular activity and protein production) of bones and provide place for cell attachment and bone tissue formation. Their performance depends on chemistry, pore size, pore volume, and mechanical strength. Recently, additive manufacturing (AM) has been used as a means to produce these scaffolds. This project explores a new biocomposite manufactured using Binder Jet AM process. Cobalt Chrome and hydroxyapatite are combined to form a composite and used in different volume fractions to produce parts with varying densities. Layer thickness, sintering time and sintering temperature are varied to study the effect of process parameters on the microstructure, dimensions and mechanical properties of the resulting structure. It is found that the resulting biocomposite can be tailored by varying the process to change its properties and mimic the properties of scaffolds in bone tissue applications. The Binder jet process involves multiple nozzles depositing very fine droplets of binder which interacts with the powder material. This interaction can affect the geometry and the resulting properties in multiple ways. This project explores this interaction and shows how this process can be used in the future of scaffold manufacturing.
Recommended Citation
Ruprecht, John. "Scaffold Manufacturing by 3D Printing: Cobalt Chrome - Hydroxyapatite Biocomposite." Undergraduate Research Symposium, Mankato, MN, April 10, 2018.
https://cornerstone.lib.mnsu.edu/urs/2018/poster-session-A/1
