Patent ID: 11945754
Assignee: CITY UNIVERSITY OF HONG KONG
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method for forming a gradient structure three-dimensional ceramic article comprising:
printing a first layer of a first material comprising a first fraction of first ceramic particles and a first fraction of a first polymeric ceramic precursor;
printing a second layer at least partially disposed on the first layer of a second material comprising a second fraction of second ceramic particles and a second fraction of a second polymeric ceramic precursor, the first fraction of first ceramic particles being different from the second fraction of second ceramic particles;
heating a composite of the first layer and the second layer at a temperature sufficient to decompose the first and second polymeric ceramic precursors and sinter the composite wherein a difference between the first fraction of first ceramic particles and the second fraction of second ceramic particles creates an interface stress to cause a selected level of deformation of the ceramic article.