The effect of alumina-based sintering aid on the microstructure, selected mechanical properties, and coefficient of friction of Cf/SiC composite prepared via spark plasma sintering (SPS) method

Zahabi, Saeed Reza; Arjmand, Hesamodin; Ramazani, Mazaher; Al-Bahrani, Mohammed; Naderi, Mehdi; Tavoosi, M.; Gordani, Gholamreza; Loghman-Estarki, Mohammad Reza

doi:10.1016/j.ceramint.2023.01.108

Cited by 6 publications

(2 citation statements)

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“…The formation of MgAl2O4 is facilitated by the carbon fibers creating a conductive network within the samples at high tempera tures, allowing reactants to come into closer contact and react more efficiently, thereb increasing the yield of MgAl2O4 [43]. MgAl2O4 acts as a sintering aid, enhancing the qual ity of the sintering process and contributing to the improvement of the material's hardnes and thermal stability [44]. The XRD patterns obtained from the X-ray diffractometer are shown in Figure 9.…”

Section: Effect On Microstructurementioning

confidence: 99%

“…The formation of MgAl 2 O 4 is facilitated by the carbon fibers creating a conductive network within the samples at high temperatures, allowing reactants to come into closer contact and react more efficiently, thereby increasing the yield of MgAl 2 O 4 [43]. MgAl 2 O 4 acts as a sintering aid, enhancing the quality of the sintering process and contributing to the improvement of the material's hardness and thermal stability [44].…”

Section: Effect On Microstructurementioning

confidence: 99%

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Vat Photopolymerization of Ceramic Parts: Effects of Carbon Fiber Additives on Microstructure and Mechanical Performance

Wang,

Wu,

Guo

et al. 2024

Materials

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Vat photopolymerization (VPP), as an additive manufacturing (AM) technology, can conveniently produce ceramic parts with high resolution and excellent surface quality. However, due to the inherent brittleness and low toughness of ceramic materials, manufacturing defect-free ceramic parts remains a challenge. Many researchers have attempted to use carbon fibers as additives to enhance the performance of ceramic parts, but these methods are mostly applied in processes like fused deposition modeling and hot pressing. To date, no one has applied them to VPP-based AM technology. This is mainly because the black carbon fibers reduce laser penetration, making it difficult to cure the ceramic slurry and thus challenging to produce qualified ceramic parts. To address this issue, our study has strictly controlled the amount of carbon fibers by incorporating trace amounts of carbon fiber powder into the original ceramic slurry with the aim to investigate the impact of these additions on the performance of ceramic parts. In this study, ceramic slurries with three different carbon fiber contents (0 wt.%, 0.1 wt.%, 0.2 wt.%, and 0.3 wt.%) were used for additive manufacturing. A detailed comparative analysis of the microstructure, physical properties, and mechanical performance of the parts was conducted. The experimental results indicate that the 3D-printed alumina parts with added carbon fibers show varying degrees of improvement in multiple performance parameters. Notably, the samples prepared with 0.2 wt.% carbon fiber content exhibited the most significant performance enhancements.

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Section: Effect On Microstructurementioning

confidence: 99%

“…The formation of MgAl 2 O 4 is facilitated by the carbon fibers creating a conductive network within the samples at high temperatures, allowing reactants to come into closer contact and react more efficiently, thereby increasing the yield of MgAl 2 O 4 [43]. MgAl 2 O 4 acts as a sintering aid, enhancing the quality of the sintering process and contributing to the improvement of the material's hardness and thermal stability [44].…”

Section: Effect On Microstructurementioning

confidence: 99%