A novel design of Al-Cr alloy surface sealing for ablation resistant C/C-ZrC-SiC composite

Chang, Yabin; Sun, Wei; Xiong, Xiang; Chen, Zhaoke; Wang, Yalei; Hao, Zhenhua; Xu, Yonglong

doi:10.1016/j.jeurceramsoc.2016.09.002

Cited by 35 publications

(7 citation statements)

References 23 publications

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“…319 The surface sealing of the SiC−ZrC−C/C composite was undertaken with Al−Cr alloy via liquid melt impregnation. 320 The surface examination shows that the surface holes and cracks were effectively sealed due to formation of Al 8 Cr 5 . The ablative performance of the composites improves with incorporation of alloys with ceramics.…”

Section: Carbon/elastomeric and Carbon/ceramicmentioning

confidence: 98%

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Advances in Ablative Composites of Carbon Based Materials: A Review

Kumar

Kandasubramanian

2019

Ind. Eng. Chem. Res.

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Ablative composites are highly endothermic sacrificial thermal protection materials that are indispensable to the aerospace industry. Polymeric ablatives are the most versatile and the largest class of thermal protection materials due to their capability to be to varied hyperthermal environments. Carbon/carbon composites have outstanding mechanical properties at higher temperatures but they are susceptible to oxidation. The oxidation is addressed by matrix modification, application of a coat of ultrahigh temperature ceramics (UHTC), or also by the use of nanostructure-toughened UHTC coatings as discussed in this article. The article presents a comprehensive review of the science and technology of four distinct groups of ablative composites (carbon/carbon, carbon/phenolic, carbon/elastomeric and carbon/ceramic). The selection of the best material formulations for a given environment is ratified by the testing techniques, which have also been reviewed along with a brief discussion on the composites recycling technologies and their environmental and economic impacts.

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Section: Carbon/elastomeric and Carbon/ceramicmentioning

confidence: 98%

“…Alloys are used as an alternate surface sealing solution . The surface sealing of the SiC–ZrC–C/C composite was undertaken with Al–Cr alloy via liquid melt impregnation . The surface examination shows that the surface holes and cracks were effectively sealed due to formation of Al 8 Cr 5 .…”

Section: Carbon-based Ablative Nanocompositesmentioning

confidence: 99%

Advances in Ablative Composites of Carbon Based Materials: A Review

Kumar

Kandasubramanian

2019

Ind. Eng. Chem. Res.

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“…Wang et al [19] studied the effect of additives, such as copper (Cu) and silicon carbide (SiC), on Al-based alloys. Aluminum alloy matrices, with particulates of Al 2 O 3 or SiC reinforcements, possess higher strength and stiffness as well as, greater wear resistance and improved high properties [20,21]. On the other hand, the effects of other reinforcement particles such as Cr, Fe, and so on have been studied.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Corrosion Behavior of Al-Zn-Cr Family Alloys

Nassef

El-Garaihy

El-Hadek

2017

Metals

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Aluminum base alloys containing chromium (Cr) and zinc (Zn) were produced using extrusion and powder metallurgy techniques. Cr additions ranged between 5 to 10 wt. %, while Zn was added in an amount between 0 and 20 wt. %. Heat treatment processes were performed during powder metallurgy process, at different temperatures, followed by water quenching. Similar alloys were extruded with an extrusion ratio of 4.6 to get proper densification. Optical microscopy was used for microstructure investigations of the alloys investigated. The element distribution microstructure study was carried out using the Energy Dispersive X-ray analysis method. Hardness and tensile properties of the investigated alloys have been examined. Wear resistance tests were carried out and the results were compared with these of the Al-based bulk alloys. Results showed that the aluminum base alloys, containing 10 wt. % Cr and heat treated at 500 • C for one hour followed by water quenching, exhibited the highest wear resistance and better mechanical properties.

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“…Wang studied the effect of additives as copper (Cu) and silicon carbide (SiC) on Al-based alloys [19]. Aluminum alloys matrices with particulate Al2O3 or SiC reinforcements possess higher strength and stiffness as well as greater wear resistance and improved high properties [20][21]. Studies considering other reinforcement particles, for example Cr, iron (Fe), and so on have been limited.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Corrosion Behavior of Al-Zn-Cr Family Alloys

Nassef¹,

El-Garaihy²,

El-Hadek³

2017

Preprint

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Aluminum base alloys containing chromium (Cr) and zinc (Zn) were produced using extrusion and heat treated powder metallurgy. Cr addition ranged between 5 to 10 wt. % while Zn was added in an amount between 0 to 20 wt. %. Heat treatment processes were performed during powder metallurgy process at different temperatures followed by water quenching. Similar alloys were extruded, with an extrusion ratio of 4.6 to get proper densification. Optical microscopy was used for microstructure investigations of the produced alloys. The element distribution microstructure study was carried out using the Energy Dispersive X-ray analysis method. Hardness and tensile properties of the investigated alloys have been examined. Wear resistance tests were carried out and the results were compared with these of the Al-based bulk alloys. Results showed that the aluminum base alloys containing 10wt. % Chromium and heat treated at 500°C for one hour followed by water quenching exhibited the highest wear resistance and better mechanical properties.

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A novel design of Al-Cr alloy surface sealing for ablation resistant C/C-ZrC-SiC composite

Cited by 35 publications

References 23 publications

Advances in Ablative Composites of Carbon Based Materials: A Review

Advances in Ablative Composites of Carbon Based Materials: A Review

Mechanical and Corrosion Behavior of Al-Zn-Cr Family Alloys

Mechanical and Corrosion Behavior of Al-Zn-Cr Family Alloys

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