@inproceedings{9265fd3e2b9b4914978f69dc01012142,
title = "In-situ reaction syntheis and mechanical properties of ultra high temperture ceramics",
abstract = "ZrB2-SiC ultra high temperature ceramics were prepared by a mixture of zirconium, silicon, and B4C with varimolar ratios via in-situ reactive hot pressing at temperature (1900 °C) for 60min under 30 MPa in vacuum. Experimental analysis revealed that the ZrB2-SiC composite through in-situ reaction synthesis exhibited higher flexural strength and fracture toughness. The sinterability and densification properties of ZrB2-based UHTCs increased as the amount of Si increased, however many large ZrB2 agglomerates formed when the amount of synthesized SiC in the product reached 25vol\%, which led to decrease the mechanical property. Moreover the SEM result indicates that the distributions of the in situ formed ZrB2, SiC, and ZrC phases in the composite are not homogenous.",
keywords = "In-situ synthesis, Mechanical properties, UHTCs",
author = "Changqing Hong and Xinghong Zhang and Qiang Qu and Jiecai Han and Songhe Meng",
year = "2007",
language = "英语",
isbn = "9784931136052",
series = "ICCM International Conferences on Composite Materials",
publisher = "International Committee on Composite Materials",
booktitle = "Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - {"}A Giant Step Towards Environmental Awareness",
}