Preparation and thermal insulation properties of TPMS 3Y-TZP ceramics using DLP 3D printing technology.
- Resource Type
- Article
- Authors
- Yang, Chuangang; Wu, Weicong; Fu, Zi; Zheng, Huade
- Source
- Journal of Materials Science. Aug2023, Vol. 58 Issue 29, p11992-12007. 16p. 1 Color Photograph, 6 Diagrams, 4 Charts, 6 Graphs.
- Subject
- *THERMAL insulation
*THREE-dimensional printing
*THERMAL properties
*CERAMICS
*SPECIFIC gravity
*FINITE element method
*YTTRIA stabilized zirconium oxide
- Language
- ISSN
- 0022-2461
To expand the application of zirconia ceramics in thermal insulation, this study proposes a method to prepare Yttria-stabilized tetragonal zirconia polycrystal ceramics (3Y-TZP ceramics) with fine and complex triply periodic minimal surface (TPMS structures) using digital light processing (DLP) 3D printing technology. The 3Y-TZP ceramic green body was sintered using a two-step method. When sintered at 1450 °C for 3 h, 3Y-TZP ceramics with a relative density of 98.6 ± 0.2% and a flexural strength of 937 ± 24 MPa were finally obtained. Three types of TPMS 3Y-TZP ceramic structures were successfully prepared. A finite element method was employed to validate the mechanical and thermal insulation properties through in-depth experimental studies. The results demonstrate that the diamond structure exhibited the lowest thermal conductivity of 0.93 ± 0.035 W/(mK) and the highest compressive strength of 166.5 ± 27.3 MPa at 67% porosity. The TPMS-type porous 3Y-TZP ceramics prepared by DLP technology have both load-bearing and thermal insulation properties, making them potentially promising for thermal insulation applications. [ABSTRACT FROM AUTHOR]