Cold sintering of complex-shaped ceramic materials

被引：2
作者：
Marin-Cortes, Sonia [1 ]
Biesuz, Mattia [2 ,3 ]
Bhandari, Subhadip [4 ]
Franchin, Giorgia [4 ]
Enriquez, Esther [5 ]
Fernandez, Jose F. [1 ]
Sglavo, Vincenzo M. [2 ,3 ]
机构：
[1] ICV CSIC, Inst Ceram & Vidrio, 5 Campus Cantoblanco, Madrid 28049, Spain
[2] Univ Trento, Dept Ind Engn, Via Sommar 9, I-38123 Trento, Italy
[3] INSTM, Via G Giusti 9, I-50121 Florence, Italy
[4] Univ Padua, Dept Ind Engn, Via Marzolo 9, I-35131 Padua, Italy
[5] CSIC, Inst Opt Daza Valdes IO, Serrano 121, Chamartin 28006, Madrid, Spain
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2024年 / 44卷 / 16期
关键词：
Complex shape; Cold sintering process; Hydroxyapatite; Diatomaceous earth; Construction/demolition waste materials; Zinc oxide; MECHANISMS;
D O I：
10.1016/j.jeurceramsoc.2024.116813
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The present work explores for the first time the production of ceramic bodies with complex shape through the cold sintering process. Inspired by previous works on spark plasma sintering, a spacer accessory was designed to act as a removable mold. This proof-of-concept was tested with four different ceramic systems: biogenic hydroxyapatite, zinc oxide, diatomaceous earth and construction/demolition waste materials. In all cases, the density is comparable to that obtained by cold sintering of simpler disks. Moreover, the microstructure of the complex-shaped materials is substantially homogeneous in the entire component. Some distortions can be detected when comparing the spacer and sample shape, their control and modeling being a key challenge for future works.
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页数：7
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