Related Experiment Video
Updated: Jul 13, 2025

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography
Published on: January 25, 2019
Shrinkage Compensation and Effect of Building Orientation on Mechanical Properties of Ceramic Stereolithography Parts
Piyush Arora1, Khaled G Mostafa1, Emmanuel Russell2
1Additive Design and Manufacturing Systems Laboratory, Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada.
Abstract:
Stereolithography additive manufacturing (SLA-AM) can be used to produce ceramic structures by selectively curing a photosensitive resin that has ceramic powder in it. The photosensitive resin acts as a ceramic powder binder, which is burned, and the remaining ceramic part is sintered during post-processing using a temperature-time-controlled furnace. Due to this process, the ceramic part shrinks and becomes porous. Moreover, additive manufacturing leads to the orthotropic behavior of the manufactured parts. This article studies the effect of the manufacturing orientation of ceramic parts produced via SLA-AM on dimensional accuracy. Scaled CAD models were created by including the calculated shrinkage factor. The dimensions of the final sintered specimens were very close to the desired dimensions. As sintering induces porosity and reduces the mechanical strength, in this study, the effect of orientation on strength was investigated, and it was concluded that the on-edge specimen possessed by far the highest strength in terms of both compression and tension.
Related Concept Videos
Shrinkage in Concrete
When concrete is still in its plastic state, it can undergo a decrease in volume by about 1% of its absolute volume. This decrease is known as plastic shrinkage. It arises either...
Drying Shrinkage
A portion of this drying shrinkage can be reversed; if the concrete is...
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

