Interface contribution to the SiC-titanium and SiC-aluminium tensile strength prediction

Molliex, L.; Favre, J.-P.; Vassel, A.; Rabinovitch, Marlene

doi:10.1007/bf00366890

Cited by 32 publications

(9 citation statements)

References 11 publications

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“…Values published in the literature for various variants of the Sigma fibre tend to have high interface strengths; for example, an interfacial shear strength of 382 MPa (push-out) [50] and 350 MPa (fragmentation) for SM1040 [7]. These compare with a frictional sliding stress s fric of 170 MPa and a threshold stress of $420 MPa measured here for SM2156.…”

Section: Discussionmentioning

confidence: 66%

“…While SiC fibre/Ti metal matrix composites have been identified as promising materials for elevated temperature applications [2,3], perhaps surprisingly, most research has focused on characterizing the interface properties at room temperature (RT) [4][5][6][7][8][9][10][11][12]. Consequently, little is known about how the interfacial shear strength varies at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial shear strength behaviour of Ti/SiC metal matrix composites at room and elevated temperature

2010

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Section: Discussionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Interfacial shear strength behaviour of Ti/SiC metal matrix composites at room and elevated temperature

2010

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“…However, the available processing methods for manufacturing TMC are too costly for the related gain in performance (Soumelidis et al [3], Wei [4], Molliex et al [5], Gao and Zhao [6], Cotterill and Bowen [7], Bobet et al [8] and Thomas and Winstone [9]). Prior to hot compression of TMC parts, filament/matrix coupling must be performed through various methods which exhibit different disadvantages.…”

Section: Introductionmentioning

confidence: 97%

Correlation between microstructures of SiC-reinforced titanium matrix composite and liquid route processing parameters

2015

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A new procedure for filamentary metal matrix composite processing is described here. It consists in running carbon-coated SiC filaments through a liquid titanium bath in levitation. The liquid metal/carbon interaction must be significant enough to enable filament wetting and sufficiently low to avoid composite embrittlement. To insure both requirements, different configurations of the initial ceramic filament can be used: (1) SiC(C) filament free of any other coating, (2) SiC(C) filament coated with a carbide obtained by reactive chemical vapour deposition (R-CVD), or (3) SiC(C) previously coated by a first metal layer. In order to choose the best conditions for developing the process, the different processing configurations were studied through modelling and numerical simulations of the filament/matrix interaction. The microstructure of the interfacial zone between filament and matrix was investigated through SEM and Auger electron spectroscopy (AES) analyses. The microstructure of the interfacial zone between filament and matrix was investigated through SEM and AES analyses. The results show that in comparison to the first processing configuration, the best way to obtain filamentary composite semi-products without excessive fibre/matrix interaction is to use the second configuration. However, the latter requires preliminary R-CVD operations, while the third configuration leads to moderate carbon embrittlement effect without requiring additional equipment.

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“…There has been an interest, however, in the application of this test to model metal matrix composites using various techniques [13][14][15][16][17][18][19][20][21]. Ochiai and Osamura [13] tested a number of single W fiber-reinforced Cu matrix composite specimens with different thickness and showed that the average fragment length increased with increasing volume fraction of the fiber.…”

Section: Introductionmentioning

confidence: 99%

“…The work of Roman and Aharonov dealt with the fiber fragmentation in Al matrix composites reinforced with different types of silicon carbide fibers and showed that the friction arising from thermal residual stresses plays a major role in determining the interfacial shear stresses in these composites [14]. Molliex et al [15] studied fragmentation in SCS-2 fiber-reinforced Al alloy composites and concluded that interfacial stress transfer in these materials is limited by the plastic deformation of the matrix alloy. Clough et al [16] and Houpert et al [17] conducted single fiber fragmentation tests on SiC fiber-reinforced single crystal aluminum and Al 2 O 3 fiber-reinforced copper matrix composites, respectively, and analyzed the results in terms of the load drops corresponding to fiber fragmentation.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Fiber Fragmentation Characteristics of SiC Single-Fiber Composite With Titanium Matrices

Matikas

2008

Advanced Composite Materials

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Aerospace structural applications, along with high performance marine and automotive applications, require high-strength efficiency, which can be achieved using metal matrix composites (MMCs). Rotating components, such as jet-engine blades and gas turbine parts, require materials that maximize strength efficiency and metallurgical stability at elevated temperatures. Titanium matrix composites (TMCs) are well suited in such applications, since they offer an enhanced resistance to temperature effects as well as corrosion resistance, in addition to optimum strength efficiency. The overall behavior of the composite system largly depends on the properties of the interface between fiber and matrix. Characterization of the fiber-matrix interface at operating temperatures is therefore essential for the developemt of these materials. The fiber fragmentation test shows good reproducibility of results in determining interface properties. This paper deals with the evaluation of fiber fragmentation characteristics in TMCs at elevated temperature and the results are compared with tests at ambient temperature. It was observed that tensile testing at 650 • C of single-fiber TMCs led to limited fiber fragmentation behavior. This indicates that the load transfer from the matrix to the fiber occurs due to interfacial friction, arising predominantly from mechanical clamping of the fiber by radial compressive residual and Poisson stresses. The present work also demonstrates that composite processing conditions can significantly affect the nature of the fiber-matrix interface and the resulting fragmentation of the fiber.  Koninklijke Brill NV, Leiden, 2008

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Interface contribution to the SiC-titanium and SiC-aluminium tensile strength prediction

Cited by 32 publications

References 11 publications

Interfacial shear strength behaviour of Ti/SiC metal matrix composites at room and elevated temperature

Interfacial shear strength behaviour of Ti/SiC metal matrix composites at room and elevated temperature

Correlation between microstructures of SiC-reinforced titanium matrix composite and liquid route processing parameters

High Temperature Fiber Fragmentation Characteristics of SiC Single-Fiber Composite With Titanium Matrices

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