Interfacial reaction and stability of SCS-6 SiC/Ti–25Al–10NB–3V–1MO composites

Yang, Yanqing; Dudek, H.J.; Kumpfert, J.

doi:10.1016/s0921-5093(97)00749-1

Cited by 50 publications

(24 citation statements)

References 16 publications

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“…Bonded joints are not limited to the pavement engineering application and are widely used in other engineering structures. For example, bonding components made of concrete/rock, silicon/glass, ceramic/metal and composite/metal are extensively used in civil engineering structures, electronic devices, automobiles and aircrafts (Yang et al, 1998;Chaudhuri & Chiu, 2007;Chandra Kishen & Singh, 2001;Wang et al, 2013;Dunn et al, 2000). At the interface of all bi-material 294 components, cracks may create as a result of imperfect bonding or during the service life of the structures containing these bonds.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of interfacial bond strength between Portland cement concrete and asphalt concrete layers using bi-material SCB test specimen

Mirsayar¹,

Shi²,

Zollinger³

2017

10.5267/j.esm

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Portland cement concrete (PCC) / asphalt concrete (AC) bonded components are seen in both conventional pavement structures as well as overlays. Due to the environmental and traffic loads, cracks occur at the interface of the PCC and AC layers and finally, may propagate through the interface or one of the layers. Therefore, the evaluation of bond strength between these layers is important. This paper investigates bond strength between asphalt concrete and Portland cement concrete using a new sandwich test specimen. The developed specimen, called Bi-material semi-circular bend (BSCB) is made of asphalt concrete and the Portland cement concrete, cracked at the interface of the materials. First, the suggested specimen is introduced and characterized using finite element simulation. Then, the specimen is employed to obtain bond strength between asphalt concrete and Portland cement concrete under mixed mode loading, and at two temperatures: -20C and 20C. The fracture toughness at different mixed mode conditions is obtained, and finally, fracture criterion for the tested bonded joints is presented.

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Section: Introductionmentioning

confidence: 99%

Evaluation of interfacial bond strength between Portland cement concrete and asphalt concrete layers using bi-material SCB test specimen

Mirsayar¹,

Shi²,

Zollinger³

2017

10.5267/j.esm

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“…Kinetically, the interaction between Ti and SiC includes the dissociation of SiC at high temperature, the diffusion of silicon and carbon ions away from the interface into the bulk metal, and the formation of TiC and titanium silicide, when the solubilities of carbon and silicon ions in Ti matrix reach saturation. [27] The interfacial reactions may primarily include the following:…”

Section: A Mechanism Of Reactionsmentioning

confidence: 99%

“…Integrating Eqs. [15] through [17] and [21] through [27], expressions [21] through [26] can be detailed as follows:…”

Section: The I-j Binary Systemmentioning

confidence: 99%

Thermodynamic Effects of Alloying Elements on Solid-State Interfacial Reactions in a Multicomponent System: Theoretical Treatment and Application in SiC f /Ti Composites

Qin

Fan

Zhang

2008

Metall Mater Trans A

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Alloying elements have an important effect on phase formation in solid-state chemical reactions. From the viewpoint of thermodynamics, applying the Miedema model and Kohler equation, a thermodynamic model for a solid-state multicomponent system was presented. Using this model, the activity of Ti in SiC f /Ti composites was evaluated, and the influence of different alloying elements on the interfacial chemical reactions in SiC f /Ti composites at high temperature was investigated from a thermodynamic viewpoint. The calculation results showed that most alloying elements, such as Al, Sn, Ni, Fe, Cu, Mn, Cr, Mo, and V, can reduce the activity of Ti and hinder the interfacial chemical reactions in SiC f /Ti composites, but an alloying element such as Nb can decrease the stability of the interfacial chemical reactions in SiC f /Ti composites, in most cases.

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“…Some well-known examples are: the silicon carbide/ titanium (Sic/Ti) fasteners in aircrafts [1], silicon/glass joints in micro-electro-mechanical systems (MEMS) [2], fiber/matrix joints in composite structures [3][4][5], and rock/concrete interfaces in dams [6]. In structures containing bi-material joints, the existence of cracks at the interface is inevitable because of the high local stress rise resulting from material discontinuity and/or geometrical condition.…”

Section: Introductionmentioning

confidence: 99%