New porous silicon carbide composite reinforced by intact high-strength carbon fibres

Mentz, Juliane; Müller, Marcus; Kuntz, Meinhard; Grathwohl, Georg; Buchkremer, Hans Peter; Stöver, D.

doi:10.1016/j.jeurceramsoc.2005.03.250

Cited by 14 publications

(11 citation statements)

References 30 publications

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“…The sharp notch was introduced into the samples using a scalpel and had an approximate depth of 1.5–2 mm. This sharp notch substituting a crack was based on work by other authors, 10,11 who found that a notch of this size provided consistent fracture toughness values for porous ceramics. The size of the notch was measured before testing using a travelling microscope.…”

Section: Methodssupporting

confidence: 58%

“…Three‐point bend tests were then performed with a span of 40 and 25 mm for the x / y orientation samples, and 25 mm for the z direction samples, respectively. The cross‐head speed was 0.5 mm/min as used in previous work 10,11 . Five tests were conducted with a span of 40 mm for the x / y orientation, and a single test was conducted with a 25 mm span.…”

Section: Methodsmentioning

confidence: 99%

“…The cross-head speed was 0.5 mm/min as used in previous work. 10,11 Five tests were conducted with a span of 40 mm for the x/y orientation, and a single test was conducted with a 25 mm span. For the z orientation, five tests were conducted with the 25 mm span.…”

Section: Single-edge Notched Beam (Senb) Fracture Toughness Testsmentioning

confidence: 99%

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Mechanical Properties of Low‐Density SiC‐Coated Carbon‐Bonded Carbon Fiber Composites

Ahmed

Chlup

Dlouhý

et al. 2011

Int J Applied Ceramic Tech

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Carbon‐bonded carbon fiber (CBCF) composites are currently used for high‐temperature thermal insulation, but they can only be used under protective atmosphere or vacuum due to their limited oxidation resistance. High temperature stability may be improved by the addition of a protective coating of silicon carbide. The effect of this coating on key mechanical properties of CBCF composites, namely flexural and compressive strength, modulus, and fracture toughness, is reported here. The fracture toughness of coated and uncoated materials was also determined at elevated temperatures. A significant increase of all mechanical properties was found when the protective coating was present.

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Section: Methodssupporting

confidence: 58%

Section: Methodsmentioning

confidence: 99%

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Mechanical Properties of Low‐Density SiC‐Coated Carbon‐Bonded Carbon Fiber Composites

Ahmed

Chlup

Dlouhý

et al. 2011

Int J Applied Ceramic Tech

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“…Another effective way for improving mechanical strength is to reinforce anorthite foams with strong phases, such as carbon fibers, Al 2 O 3 , Si 3 N 4 , mullite, and so on . Mullite is found to be an effective reinforcing phase in porous anorthite ceramics .…”

Section: Introductionmentioning

confidence: 99%

Fabrication and properties of porous anorthite/mullite ceramics with both high porosity and high strength

Yang

et al. 2019

Int J Applied Ceramic Tech

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Porous anorthite/mullite ceramics with both high porosity and high strength have been successfully fabricated by foam-gelcasting and pressureless sintering technology, using α-Al 2 O 3 , SiO 2 , and CaCO 3 as starting materials and MnO 2 as sintering aids. The porous mullite ceramics prepared in this study had 83.3% porosity and 0.3 W/m·K thermal conductivity, exhibited compressive strength value as high as 6.1 MPa. The samples fabricated with mullite content of 30 mol% possessed 79.4% porosity and 5.9 MPa compressive strength showed thermal conductivity as low as 0.19 W/m·K. With the addition of MnO 2 , the properties of the prepared materials varied slightly when mullite content changed in a large scale. The results showed that the addition of MnO 2 promoted the reaction, affected sintering and grain growth, and contributed to high strength and low-thermal conductivity. K E Y W O R D Sanorthite, compressive strength, mullite, porosity, porous ceramics

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“…In recent years, refractory properties of structural CBCR composites have been increased by introducing silicon carbide [10], magnesium oxide [11], and boron oxide [12]. In comparison to structural graphite, such CBCR composites exhibit higher thermal stability, better resistance to impact loading, and increased strength.…”

mentioning

confidence: 99%

Refractory structures made of low-weight carbon-bonded carbon-fiber-reinforced composites

Kolesnikov

Kravetskii

2007

Refract Ind Ceram

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Published data on the use of high-porosity low-weight carbon-bonded carbon-fiber-reinforced (CBCR) composite structural materials in high-temperature technology are generalized. It is shown that large-scale structures can be created from CBCR composites at a quite small material weight consumption. Such structures are characterized by low weight and small temperature-induced deformations, which ensure long service life and reliable thermal isolation, for example, of metal furnace shells. Methods for the assembly of CBCR structures by mechanical means or using heat-resistant glues are proposed.

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New porous silicon carbide composite reinforced by intact high-strength carbon fibres

Cited by 14 publications

References 30 publications

Mechanical Properties of Low‐Density SiC‐Coated Carbon‐Bonded Carbon Fiber Composites

Mechanical Properties of Low‐Density SiC‐Coated Carbon‐Bonded Carbon Fiber Composites

Fabrication and properties of porous anorthite/mullite ceramics with both high porosity and high strength

Refractory structures made of low-weight carbon-bonded carbon-fiber-reinforced composites

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