期刊
MATERIALS & DESIGN
卷 130, 期 -, 页码 1-7出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2017.05.029
关键词
Aerospace; Ceramic matrix composites; Spark plasma sintering; Eutectic temperature; ZrB2; C
资金
- EPSRC [EP/K008749/1]
- EPSRC [EP/K008749/1, EP/K008749/2] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K008749/1, EP/K008749/2] Funding Source: researchfish
Short fibre reinforced ceramic composites, based on ZrB2 with a carbon fibre content of 45 vol%, were produced by ball-milling and rapid Spark Plasma Sintering (SPS) at 1800- 2300 degrees C by varying the holding times. Careful control of the sintering parameters, such as the heating rate, dwell temperature and holding time are required to produce a fully dense matrix and avoid fibre degradation. The sintered materials were characterized in terms of relative density, morphology of the fibres and microstructural features of the matrix. The final residual porosity ranged from 16 to 3 vol%. The carbon fibres maintained their original morphology and the matrix consisted of ZrB2, SiC and ZrC phases. In spite of the good adhesion between the fibre surface and the matrix promoted by SPS processing, extensive fibre pull-out was observed in the fracture surfaces of all of the composites sintered at or below 1900 degrees C.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据