In this section, you can access to the latest technical information related to the FUTURE project topic.

Thermal ablation behavior of SiBCN-Zr composites prepared by reactive spark plasma sintering

To meet the ultrahigh temperature requirements of a thermal protection system, an ultrahigh temperature phase of ZrB2 was introduced into a SiBCN matrix that was fabricated using a reactive spark plasma sintering method. The thermal ablation behavior of SiBCN-Zr composites was investigated using an oxyacetylene flame test. The test results indicated that the ablation behavior of the modified ceramic composites was significantly improved over that of a monolithic SiBCN ceramic. The linear and mass ablation rates of the SiBCN-Zr material were found to be 0.004mm/s and 4.75×10?4 g/s, which was indicative of excellent ablation resistance. Analysis of the material after thermal ablation testing showed that ablation products mainly consisted of the ZrSiO4, SiO2 and ZrO2 phases. A reaction occurred between the SiO2 and ZrO2 phases in the central region of the ceramic forming ZrSiO4 that protected the material from further thermal damage. A loose and porous oxidation layer was found from the matrix based on analysis of a cross-section image.

» Author: Yang Miao, Zhihua Yang, Qishuai Zhu, Bin Liang, Quan Li, Zhuo Tian, Dechang Jia, YiBing Cheng, Yu Zhou

» Reference: Ceramics International, Volume 43, Issue 11

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es