Near-net-shape fibre-reinforced ceramic matrix composites by the sol infiltration technique

Dey, Atanu; Chatterjee, Minati; Naskar, Milan Kanti; Basu, K.

doi:10.1016/s0167-577x(02)01397-6

Cited by 10 publications

(7 citation statements)

References 20 publications

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“…The mechanism of this method is preparing a uniform mixture of Al 2 O 3 and SiO 2 fine powder, adding fluoride on this basis, and then catalyzing the growth of whiskers to form densified composites. Chopped fiber reinforced method is also a traditional enhancement method for mullite matrix composites, in addition to sol impregnation [66], electrophoretic deposition [67], and other methods.…”

Section: Preparation Methods Of Discontinuous Phase Reinforced Mullitementioning

confidence: 99%

Toughening Mechanism of Mullite Matrix Composites: A Review

Cui

Zhang

et al. 2020

Coatings

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Mullite has high creep resistance, low thermal expansion coefficient and thermal conductivity, excellent corrosion resistance and thermal shock resistance, and plays an important role in traditional ceramics and advanced ceramic materials. However, the poor mechanical properties of mullite at room temperature limit its application. In order to improve the strength and toughness of mullite, the current research focuses on the modification of mullite by using the second phase. The research status of discontinuous phase (particle, whisker, and chopped fiber) and continuous fiber reinforced mullite matrix composites is introduced, including preparation process, microstructure, and its main properties. The reinforcement mechanism of second phase on mullite matrix composites is summarized, and the existing problems and the future development direction of mullite matrix composites are pointed out and discussed.

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Section: Preparation Methods Of Discontinuous Phase Reinforced Mullitementioning

confidence: 99%

Toughening Mechanism of Mullite Matrix Composites: A Review

Cui

Zhang

et al. 2020

Coatings

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“…Sol-Gel infiltration is a valuable fabrication method of CMCs, using fibrous preforms as the precursor materials, including better homogeneity, near-net shape fabrication, and low processing temperatures (<600 • C) [220]. Although, sol-gel needs to repeat the infiltration process several times, using intermediate heat treatment, to surpass the excessive shrinkage of the matrix while sintering and drying take place [221].…”

Section: Matrix Forming Via Sol-gelmentioning

confidence: 99%

Ceramic Matrix Composites for Aero Engine Applications—A Review

Karadimas

Salonitis

2023

Applied Sciences

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Ceramic matrix materials have attracted great attention from researchers and industry due to their material properties. When used in engineering systems, and especially in aero-engine applications, they can result in reduced weight, higher temperature capability, and/or reduced cooling needs, each of which increases efficiency. This is where high-temperature ceramics have made considerable progress, and ceramic matrix composites (CMCs) are in the foreground. CMCs are classified into non-oxide and oxide-based ones. Both families have material types that have a high potential for use in high-temperature propulsion applications. The oxide materials discussed will focus on alumina and aluminosilicate/mullite base material families, whereas for non-oxides, carbon, silicon carbide, titanium carbide, and tungsten carbide CMC material families will be discussed and analyzed. Typical oxide-based ones are composed of an oxide fiber and oxide matrix (Ox-Ox). Some of the most common oxide subcategories are alumina, beryllia, ceria, and zirconia ceramics. On the other hand, the largest number of non-oxides are technical ceramics that are classified as inorganic, non-metallic materials. The most well-known non-oxide subcategories are carbides, borides, nitrides, and silicides. These matrix composites are used, for example, in combustion liners of gas turbine engines and exhaust nozzles. Until now, a thorough study on the available oxide and non-oxide-based CMCs for such applications has not been presented. This paper will focus on assessing a literature survey of the available oxide and non-oxide ceramic matrix composite materials in terms of mechanical and thermal properties, as well as the classification and fabrication methods of those CMCs. The available manufacturing and fabrication processes are reviewed and compared. Finally, the paper presents a research and development roadmap for increasing the maturity of these materials allowing for the wider adoption of aero-engine applications.

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“…The conventional methods of producing CMCs are hot pressing [4], melt infiltration [5], chemical vapour infiltration (CVI) [6], slurry infiltration-high pressure sintering (SI-HPS) [3,7,8] and sol-gel [3,[8][9][10][11][12][13][14]. Radsick et al [8] fabricated oxide/oxide matrix composites by slurry infiltration-hot pressing sintering technique (SI-HP).…”

Section: Introductionmentioning

confidence: 99%

“…Recently Ruggles-Wrenn et al [14] have studied the environmental effects on the creep behaviours of oxide/oxide ceramic matrix composites prepared by sol-gel technique. Dey et al [11] have fabricated near-net-shape fibre reinforced ceramic matrix composites by sol infiltration technique. Sol-gel vacuum infiltration technique is a promising route for the fabrication of oxide-oxide ceramic matrix composite.…”

Section: Introductionmentioning

confidence: 99%