Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction

Wu, Guanglei; Liu, Yanmei; Xiu, Ziyang; Jiang, Longtao; Yang, Wenshu

doi:10.1007/s12598-010-0017-3

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…As shown in Figure 14b, all the TiC in the shell of Al-4Ti-1D (10 µm) is particle-like with almost the same size, while some plate-like TiC is formed in the shell of Al-4Ti-1D (6 µm), and the size of particle-like TiC also has a large difference, as Figure 14d shows. It has been reported that TiC formed by Al 4 C 3 and Ti reactions is easy to become plate-like [32,33]. Therefore, it is considered that the core-shell particles prepared from 6 µm diamond have simultaneous Al-C and Ti-C reactions on the diamond surface.…”

Section: The Synthesis Processes Of Tic In Al Melts Used Different Ca...mentioning

confidence: 99%

The Influence of Carbon Sources on the Microstructures of In Situ-Synthesized TiC in Al Melts

Ding

Jia

et al. 2022

Materials

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In this work, graphite and diamond are successfully introduced into Al melts and TiC is in situ-synthesized based on reactive wetting. It is found that the microstructures of the prepared TiC-reinforced Al composites are varied with the change in carbon sources and their sizes. TiC particles tend to form agglomerations in the composites prepared by both graphite and diamond, but the size of the TiC particles as well as their agglomerations will decrease with the decrease in the carbon source size. In addition, the Ti-C reaction is also difficult to fully carry out due to the influence of the Al-C reaction. As a result, in addition to TiC particles, Al4C3 will also be present in the composites prepared by graphite, especially when the size of graphite is large. As for the composites prepared by diamond, diamond@Al4C3@TiC core–shell particles will form when the size of the diamond is large, such as 10 μm in this work, and these particles will transform into Al4C3@TiC core–shell particles when the size of the diamond is decreased.

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Section: The Synthesis Processes Of Tic In Al Melts Used Different Ca...mentioning

confidence: 99%

The Influence of Carbon Sources on the Microstructures of In Situ-Synthesized TiC in Al Melts

Ding

Jia

et al. 2022

Materials

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“…Carbon fibers have been more and more widely used in the fields of aerospace and petrochemical and medical treatment (Sheehan et al, 1994;Park and Kim, 2010), owing to their unique stabilities, elastic moduli, strengths, stiffness, thermal conductivities, and lightweightness (Ruland, 1990;Keiji et al, 2004;Wu et al, 2010). Nevertheless, the high stiffness of carbonfiber composite materials could lead to relatively low damping performance, in which case original cracks will be quickly propagated under the actions of periodic loads and external shocks, eventually resulting in vibration, fatigue, and failure (Khan et al, 2011;Fan et al, 2016).…”

Section: Vibration and Noise Reduction Based On The Damping Propertymentioning

confidence: 99%

Carbon Nanomaterials: A New Sustainable Solution to Reduce the Emerging Environmental Pollution of Turbomachinery Noise and Vibration

Jia

Miu

et al. 2020

Front. Chem.

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The vibration and noise that resulted from turbomachinery, such as fans, compressors, and centrifugal pumps, are known to bring considerable disturbance and pollution to the machine itself, the environment, and the operators. Hence, how to cope with the vibration and noise has become a recent research focus. With the advancement of materials science, more and more new nanomaterials have been applied in the field of noise and vibration reduction. To be specific, carbon-based nanomaterials, such as carbon fibers, carbon nanotubes, and graphenes, have achieved outstanding results. Carbon nanocomposites, such as carbon nanofibers, carbon nanotubes, and graphenes, are characterized by their low densities, high strengths, and high elastic moduli, all of which made carbon nanocomposites the most promising vibration and noise-reduction composites, thanks to their damping properties, compatibilities, noise and vibration absorption qualities, and wide wave-absorbing frequency bands. In light of this, this paper summarizes the progresses and application prospects of such carbon nanocomposites as carbon nanofibers, carbon nanotubes, and graphenes in the field of turbomachinery vibration and noise reduction.

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“…The addition of Ti improved the wettability between the matrix and the reinforcement. In situ synthesis of Al 3 Ti occurred through the reaction of Ti with Al after sintering, further enhancing the strength and thermal stability of the composites [ 30 , 31 , 32 , 33 ]. Hot-pressing was then carried out to further improve the properties of the composites.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Micron-Sized TiB2 Particles on the Properties of Al6061 Strengthened with 4% TiB2 Nano-TiB2

Zheng,

Long,

Zhu

et al. 2023

Materials

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Dual-scale (nano and micron) particle-reinforced TiB2/6061Al matrix composites with different contents of TiB2 were prepared using powder metallurgy, and then analyzed via microstructure observation and tests of microhardness, tensile properties, and friction and wear properties. The 6061Al powders’ particles changed from spherical to flaky after two rounds of high-energy ball milling, and the TiB2 enhancer was embedded in or wrapped by the matrix particles after high-energy ball milling. Metallurgical bonding between TiB2 particles and the matrix was achieved, and Al3Ti was synthesized in situ during sintering. The hot-pressing process eliminated the internal defects of the composites, and the TiB2 particles were diffusely distributed in the matrix. The best comprehensive mechanical properties (hardness and tensile strength) were achieved when the mass fraction of TiB2 was 5% (1% micron + 4% nano); the hardness and tensile strength of the composites reached 131 HV and 221 MPa—79.5% and 93.9% higher than those of the pure matrix, respectively. The composites’ average coefficient of friction and volumetric wear rate were reduced. Composites with a TiB2 mass fraction of 7% (3% micron + 4% nano) had the highest average coefficients of friction and the lowest volumetric wear rate of 0.402 and 0.216 mm3∙N−1∙m−1, respectively. It was observed that adhesion influences the friction mechanism, which transitions from adhesive wear with slight oxidative wear to abrasive wear.

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Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction

Cited by 6 publications

References 15 publications

The Influence of Carbon Sources on the Microstructures of In Situ-Synthesized TiC in Al Melts

The Influence of Carbon Sources on the Microstructures of In Situ-Synthesized TiC in Al Melts

Carbon Nanomaterials: A New Sustainable Solution to Reduce the Emerging Environmental Pollution of Turbomachinery Noise and Vibration

The Effect of Micron-Sized TiB2 Particles on the Properties of Al6061 Strengthened with 4% TiB2 Nano-TiB2

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