C/C–SiC composite prepared by Si–10Zr alloyed melt infiltration

Tong, Yonggang; Bai, Shuxin; Zhang, Hong; Chen, Ke

doi:10.1016/j.ceramint.2011.12.038

Cited by 40 publications

(21 citation statements)

References 20 publications

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“…Among these methods, the LMI process is one of the successfully commercialised techniques for the preparation of C/C-ZrC composites due to its low process time, applicability to complicated geometries and low porosity [15][16][17]. However, the mechanical properties of these composites fabricated by LMI are generally lower than those of materials manufactured by CVI [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

High temperature corrosion of carbon/carbon composites in Zr–Ti melts during liquid metal infiltration

et al. 2015

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Section: Introductionmentioning

confidence: 99%

High temperature corrosion of carbon/carbon composites in Zr–Ti melts during liquid metal infiltration

et al. 2015

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“…Hu et al [12] prepared a C/SiC-ZrB 2 composite by slurry and precursor infiltration and pyrolysis method and investigated the bending strength of the composite at room and high temperature. In our previous work [13][14][15], a quick and low cost alloyed reactive melt infiltration process has been developed to introduce the zirconium-bearing UHTCs into the C/C-SiC composite. The composite showed high mechanical strength and good oxidation resistance.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work [13,14], zirconium-bearing UHTCs modified C/C-SiC composites have been produced by alloyed melt infiltration using silicon based Si-Zr alloys. The aim of the present work is to evaluate the ablation resistance of the Si-Zr alloyed melt infiltrated C/C-SiC composite using a pulsed laser beam.…”

Section: Introductionmentioning

confidence: 99%

Laser ablation resistance and mechanism of Si-Zr alloyed melt infiltrated C/C-SiC composite

Tong

Bai

et al. 2018

Ceramics International

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Ablation resistance of C/C-SiC composite prepared via Si-Zr alloyed reactive melt infiltration was evaluated using a facile and economical laser ablation method. Linear ablation rates of the composite increased with an increase in laser power densities and decreased with extended ablation time. The C/C-SiC composite prepared via Si-Zr alloyed melt infiltration presented much better ablation resistance compared with the C/SiC composite prepared by polymer infiltration and pyrolysis process. The good ablation resistance of the composite was attributed to the melted ZrC layer formed at the ablation center region. Microstructure and phase composition of different ablated region were investigated by SEM and EDS, and a laser ablation 1 Corresponding author. Tel.: +86 731 4573145; fax: +86 731 4574791. E-mail address:tygiaarh419@163.com (YG Tong) 2 model was finally proposed based on the testing results and microstructure characterization. Laser ablation of the composite experienced three distinct periods.At the very beginning, the laser ablation was dominated by the oxidation process.Then for the second period, the laser ablation was dominated by the evaporation, decomposition and sublimation process. With the further ablation of the composite, chemical stable ZrC was formed on the ablated surface and the laser ablation was synergistically controlled by the scouring away of ZrC melts and evaporation, decomposition and sublimation process.

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“…A variety of multi‐matrix C/C‐ceramic composites, such as C/C–SiC, C/C–ZrC, C/SiC–ZrB 2 –ZrC, C/C–SiC–ZrB 2 , C/ZrC–SiC, and C/SiC–HfC . have been successfully fabricated using the RMI method.…”

Section: Introductionmentioning

confidence: 99%

C/C–SiC composite fabricated via PCS–Si slurry reactive melt infiltration

Guo

2018

Int J Applied Ceramic Tech

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The slurry reactive melt infiltration (RMI) method was used to overcome the shortcomings of the traditional RMI method utilized in preparing the large‐irregular shaped C/C preform. C/C–SiC composite was successfully fabricated via PCS–Si slurry RMI. Results show that it has a favorable physical bonding between the PCS–Si slurry and the C/C preform. After RMI, most of the Si in the PCS–Si slurry coating infiltrated into the C/C preform, the density of the C/C preform increased from 1.24 to 1.52g cm−3, and the open porosity decreased from 27.22% to 18.04%. SiC was formed on the surface as well as in the pores of the C/C preform. The as‐received C/C–SiC composite showed a pseudo‐ductile fracture behavior with a flexural strength of 76.4MPa. The mass ablation rate of the C/C–SiC composite is 0.34 mg s−1, exhibiting much better ablation resistance than the C/C preform with a mass ablation rate of 1.80 mg s−1.

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C/C–SiC composite prepared by Si–10Zr alloyed melt infiltration

Cited by 40 publications

References 20 publications

High temperature corrosion of carbon/carbon composites in Zr–Ti melts during liquid metal infiltration

High temperature corrosion of carbon/carbon composites in Zr–Ti melts during liquid metal infiltration

Laser ablation resistance and mechanism of Si-Zr alloyed melt infiltrated C/C-SiC composite

C/C–SiC composite fabricated via PCS–Si slurry reactive melt infiltration

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