High-temperature mechanical behavior of carbon–silicide–carbide composites developed by alloyed melt infiltration

Esfehanian, M.; Guenster, Jens; Heinrich, Jürgen G.; Horvath, Jürgen; Koch, Dietmar; Grathwohl, Georg

doi:10.1016/j.jeurceramsoc.2007.09.053

Cited by 30 publications

(9 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For wear evaluations, the C/C composite samples (each with a diameter of 30 mm) were punched using needles from an OXI-PAN fiber web to yield a reinforced preform, which was then carbonized at 1700 o C. The preform was then impregnated with coal-tar pitch and carbonized at 2200 o C via heat treatment. The impregnation-heat treatment process was performed several times to yield a C/C preform with a specific density of 1.78 g/cm 3 .…”

Section: Methodsmentioning

confidence: 99%

“…arbon-carbon-(C/C) or carbon-fiber-reinforced silicon carbide (C/C-SiC) composites are thermally and mechanically superior materials used in aeronautical, environmental, and structural applications. [1][2][3][4][5][6][7] C/C composites have seen application as nose caps, leading edges, and thermal protection systems of supersonic aircraft, as well as in exhaust cones, casting struts, secondary nozzle flaps, and primary nozzle flaps of gas turbine systems. 7) The C/C composite has the primary advantage of being more lightweight than alloys or other engineering ceramics.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Macroscopic Wear Behavior of C/C and C/C-SiC Composites Coated with Hafnium Carbide

Lee

Sihn²,

Lim³

et al. 2015

Journal of the Korean Ceramic Society

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Macroscopic Wear Behavior of C/C and C/C-SiC Composites Coated with Hafnium Carbide

Lee

Sihn²,

Lim³

et al. 2015

Journal of the Korean Ceramic Society

View full text Add to dashboard Cite

“…SiC-MoSi2 based coatings has been proved to have good bonding strength with C/C matrix when prepared by pack cementation [16] and excellent oxidation protective ability for C/C composites below 1700℃ [17,18]. Esfehanian et.al [19,20] reported that the bending strength of Cf/XSi2-SiC © 2016. This manuscript version is made available under the Elsevier user license http://www.elsevier.com/open-access/userlicense/1.0/ (X=Mo,Ti) composite at 1600℃ is better than that at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and ablation properties of a gradient Cf/C-XSi2-SiC (X = Mo,Ti) composite fabricated by reactive melt infiltration

Hao

Sun

Xiong

et al. 2016

Journal of the European Ceramic Society

View full text Add to dashboard Cite

Porous carbon/carbon composites were infiltrated by mixed Si-Mo-Ti powder with different Ti content below 1600℃ to produce an ablative C f /C-(Mo,Ti)Si 2-SiC composite. Microstructure， mechanical properties and ablation properties of the infiltrated composites were investigated. Results show that composites infiltrated by mixed powders with 14%wt Ti content have dense gradient structure and good mechanical properties. Three different kinds of typical morphologies can be distinguished on the surface of infiltrated composites according to the distribution of MoSiTi solid solutions. Formation mechanisms of the three kinds of typical morphologies are also analyzed. Ablation resistance improvement is attributed to the dense and continuity ceramic phases which distribute from inside to surface of the composites. Composites infiltrated with 14%wt Ti have the best ablation resistance due to the protective oxide layer formed by type I and type III morphologies during the ablation process. Linear and mass ablation rates of such composites are 0.002mm/s and 0.01mg/s, respectively.

show abstract

“…[1][2][3] There are several techniques for fabricating such composites, including chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP). However, the liquid silicon infiltration (LSI) method is garnering a lot of attention.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of C–SiC composite materials fabricated by the Si–Cr alloy melt-infiltration method

Seyoung

Han

Seong

et al. 2014

Journal of Composite Materials

View full text Add to dashboard Cite

Although carbon fiber-reinforced silicon carbide matrix composites fabricated using the liquid silicon infiltration method exhibit high thermal and oxidation resistances, their physical characteristics are limited because of the presence of unreacted, free Si within the materials. To resolve this problem, ingots prepared by alloying Cr with Si in ratios of 0, 5, 10, 25, and 50 at% were melted and made to infiltrate the composite, resulting in the formation of CrSi 2 in the unreacted, free Si region without degrading the composite's properties. The CrSi 2 in the composite material reduced the amount of free Si and caused minimal variation in the flexural strength while significantly improving the fracture toughness of the composite. The results of scanning electron microscopy and transmission electron microscopy analyses indicated that the improvement in the fracture toughness was due to the presence of an amorphous interlayer between the Si and CrSi 2 phases, as well as because of a stress field surrounding the CrSi 2 phase.

show abstract

High-temperature mechanical behavior of carbon–silicide–carbide composites developed by alloyed melt infiltration

Cited by 30 publications

References 20 publications

Macroscopic Wear Behavior of C/C and C/C-SiC Composites Coated with Hafnium Carbide

Macroscopic Wear Behavior of C/C and C/C-SiC Composites Coated with Hafnium Carbide

Microstructure and ablation properties of a gradient Cf/C-XSi2-SiC (X = Mo,Ti) composite fabricated by reactive melt infiltration

Mechanical properties of C–SiC composite materials fabricated by the Si–Cr alloy melt-infiltration method

Contact Info

Product

Resources

About