scispace - formally typeset
Search or ask a question
Topic

Ceramic matrix composite

About: Ceramic matrix composite is a research topic. Over the lifetime, 7807 publications have been published within this topic receiving 117020 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, a modified tape-casting process was used to construct pore structures for use as solid oxide fuel cell electrodes, catalysts, sensors, and filtration/separation devices.
Abstract: Functionally graded and continuously aligned pore structures have been fabricated by a modified tape-casting process for use as solid oxide fuel cell electrodes, catalysts, sensors, and filtration/separation devices. Pore gradients from <5 to 100 μm and aligned pore tubules have been directly fabricated in various ceramic materials with thin substrate sections approximately 500-1500 μm utilizing both low-toxicity aqueous-based slips and organic solvents. This process allows for the generation of pores without the use of thermally fugitive pore formers in a single processing step with no need for tape lamination. The incorporation of tape casting, unidirectional solidification, and the freeze-drying process results in uniformly acicular pores aligned with the direction of the moving carrier film. Processing and microstructure variability will be discussed as it pertains to the effects of solids loading, freezing temperatures, and solvent type. Applications for this ceramic processing technology will also be discussed.

158 citations

Journal ArticleDOI
TL;DR: In this paper, a well-dispersed multi-walled carbon nanotubes (CNTs) reinforced Al2O3 nanocomposites were successfully fabricated by hot-pressing.

158 citations

Journal ArticleDOI
TL;DR: In this article, Yttrium silicate (Y 2 SiO 5 ) coatings complement SiC coatings for protecting ceramic multilayer composite materials based on carbon-fiber-reinforced SiC composites (C-SiC).
Abstract: Yttrium silicate (Y 2 SiO 5 ) coatings complement SiC coatings for protecting ceramic multilayer composite materials based on carbon-fiber-reinforced SiC composites (C-SiC). Thick (100 μm), dense Y 2 SiO 5 coatings were prepared by dip coating, using concentrated aqueous slips. The resulting phases were studied by taking into account the simultaneous presence of oxide and non-oxide materials, which affected the chemical stability of the coatings. Thick, mechanically stable coatings were obtained by sintering in carbon crucibles and a SiC bed in an argon-flow furnace. Pure Y 2 SiO 5 coatings completely separated from the SiC substrates. A high percentage of Y 2 Si 2 O 7 was necessary to fit the thermal expansion coefficients and ensure the stability of the coatings. Oxidation resistance of the coated substrates was investigated by isothermal and stepwise oxidation tests.

157 citations

Journal ArticleDOI
TL;DR: In this paper, the fabrication, microstructure and some of the mechanical and thermal properties of a series of composites are described and the observed effects are discussed in terms of the volume fraction of fibre, the mismatch of thermal expansion coefficients between matrix and fibre and the nature of the interface.
Abstract: The fabrication, microstructure and some of the mechanical and thermal properties of a series of composites are described. The systems investigated were magnesia, alumina, soda-lime glass, borosilicate glass and a lithia alumino-silicate glass-ceramic incorporating high modulus, chopped carbon fibres and magnesia containing chopped, stabilized zirconia fibres. Fracture strengths were increased when the fibres were partially aligned, but decreased when the fibres were randomly oriented. In all cases, however, a substantial increase in work of fracture was observed compared to the non-reinforced matrices. The observed effects are discussed in terms of the volume fraction of fibre, the mismatch of thermal expansion coefficients between matrix and fibre and the nature of the interface.

156 citations

Journal ArticleDOI
Mingxia Chen1, Yong Zhu1, Yubai Pan1, Huamin Kou1, Heng Xu1, Jingkun Guo1 
TL;DR: In this article, a multilayered carbon nanotubes/silicon dioxide (CNTs/SiO 2 ) electromagnetic wave absorbing ceramic matrix composite material was fabricated by hot-pressed sintering.

156 citations


Network Information
Related Topics (5)
Microstructure
148.6K papers, 2.2M citations
91% related
Alloy
171.8K papers, 1.7M citations
87% related
Ultimate tensile strength
129.2K papers, 2.1M citations
84% related
Nanocomposite
71.3K papers, 1.9M citations
83% related
Coating
379.8K papers, 3.1M citations
82% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202394
2022236
2021300
2020344
2019433
2018354