Preparation and characterization of cBN-based composites from cBN-Ti3AlC2 mixtures

Yang, Limin; Gong, Junbo; Yue, Zhenming; Chu, Xiaodong

doi:10.1016/j.diamond.2016.05.003

Cited by 21 publications

(8 citation statements)

References 30 publications

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“…TiC mainly comes from the decomposition of Ti 3 AlC 2 . The previous studies have confirmed that Ti 3 AlC 2 can be decomposed into TiC and Al when the temperature is above 1400°C [29,30].…”

Section: Phase Constituent and Microstructurementioning

confidence: 80%

Preparation and high-temperature wear behavior of NiAl-Ti₃AlC₂ fabricated by thermal explosion

Yuan

Wang

Liu

et al. 2020

Mater. Res. Express

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AbstractsIn this paper, a novel NiAl-based composite reinforced with different content Ti 3 AlC 2 particles was fabricated by thermal explosion using Ni, Al, and Ti 3 AlC 2 powders as starting materials. The microstructure and high-temperature wear behavior of NiAl-Ti 3 AlC 2 composites at 600°C were investigated. The result showed that increasing Ti 3 AlC 2 content (lower than 15 wt%) could improve the fracture toughness of NiAl-Ti 3 AlC 2 , but for the composites with 20 wt%Ti 3 AlC 2 content, the fracture toughness decreased due to low relative density. Wear mechanism of composites was related to the Ti 3 AlC 2 content, the composite with a lower content exhibits oxidation wear, and higher content composite demonstrated both oxidation wear and abrasive wear.

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Section: Phase Constituent and Microstructurementioning

confidence: 80%

Preparation and high-temperature wear behavior of NiAl-Ti₃AlC₂ fabricated by thermal explosion

Yuan

Wang

Liu

et al. 2020

Mater. Res. Express

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“…Earlier, the authors had successfully fabricated Ti 3 SiC 2 -cBN composites [16], and Ti 3 AlC 2 -cBN composites [14] under 4.5 GPa by HPHT. Li et al fabricated Ti 3 AlC 2 -cBN [41] composites at 1350 °C and Ti 3 AlC 2 -Al-cBN [42] composites at 1200-1500 °C under 5.5 GPa. However, Qin et al [35] Ti 3 AlC 2 Ti 2 AlC Ti 3 Al [15] TiC 1400 1300 1200 1100 Temperature (°C) Pressure (GPa) 1000 900 800 [15] [15]…”

Section: Possible Mechanism Of the Preparation Of Ti 2 Alc Ormentioning

confidence: 99%

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Yuqi

2022

Advances in Materials Science and Engineering

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Due to their high melting point, low density, and affordable price, TiC ceramics have emerged as one of the most promising ultrahigh temperature structural materials. However, its development and usage are severely constrained by its weak mechanical characteristics. The Ti2AlC-TiC and Ti3AlC2-TiC composites were synthesized by using the laminated metal-ceramic Ti2AlC/Ti3AlC2 as the binder, combined with high-temperature and high-pressure sintering technology (GPa order of magnitude confinement system). The thermal analysis shows that the exothermic heat of Ti/1.2Al/2TiC is less than that of 3Ti/1.2Al/2C, 2Ti/1.2Al/C, and 3Ti/1.5Al/C. The ratio of Ti/1.2Al/2TiC can suppress the thermal explosion phenomenon during the sintering process and improve the safety of the high-pressure sintering process. XRD results showed that the main composition of the sintered products was Ti2AlC-TiC at 2∼3.5 GPa and Ti3AlC2-TiC at 4∼5 GPa. As the sintering pressure increased from 2 GPa to 5 GPa, the bonding phase changed from Ti2AlC to Ti3AlC2. The thickness of the synthetic Ti3AlC2 layer is near 0.1 µm under 5 GPa. The average friction coefficient of Ti2AlC-TiC composites sintered 2 GPa with POM is as low as 0.1767, while the average friction coefficient of Ti3AlC2-TiC composites with POM increased to 0.3468∼0.3797. The wear width of Ti2AlC-TiC is lower than that of Ti3AlC2-TiC composites sintered under 4–4.5 GPa. The wear width of Ti3AlC2-TiC composites decreases following the rise of sintering pressure and is reduced to 0.3504 mm under 5 GPa. Ti2AlC-TiC and Ti3AlC2-TiC composites with PP ball counterparts have friction coefficients of 0.375 to 0.45 and worse wear resistance than that of POM balls. Ti3AlC2-TiC composites synthesized at 5 GPa with a Cu ball had the smallest friction coefficient (0.4558) and the smallest wear scar width (0.6289 mm). The friction coefficients and wear widths of synthetics with Al pairs ranged from 0.48–0.697 and 0.851–1.087 mm, respectively, and varied irregularly with increasing sintering pressure. Ti2AlC-TiC composites synthesized at 2 GPa with agate and glass pairs have coefficients of friction of 0.5 and 0.61, respectively. Abrasion widths of Ti2AlC-TiC composites synthesized at 2 GPa with agate and glass pairs were 1.3 mm and 0.72 mm, respectively. The friction coefficient of synthetics with agate and glass pairs increases with increasing sintering pressure. The magnetization and magnetization intensity of the Ti3AlC2-TiC composites are stronger than those of Ti3AlC2. Ti2AlC-TiC and Ti3AlC2-TiC composites held promise to serve in the field of ceramic grinding processing applications.

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“…phase under investigation in this work, this includes composites with cBN 18,19,20,21,22 and with their MX counterparts 23,24 . However, the Ti 2 AlC MAX phase has not been studied as a composite with cBN thus far.…”

Section: Composites Of Ti 3 Alc 2 and Ti 3 Sic 2 Max Phases Have Beenmentioning

confidence: 99%

“…Composites of Ti 3 AlC 2 and Ti 3 SiC 2 MAX phases have been investigated more than the MAX phase under investigation in this work, this includes composites with cBN 18–22 and with their MX counterparts 23,24 . However, the Ti 2 AlC MAX phase has not been studied as a composite with cBN thus far.…”

Section: Introductionmentioning

confidence: 99%

“…11,16 Extremely high pressures and temperatures of 7.5-8 GPa and >2000°C are required to obtain complete densification of the cBN parts after sintering. 11,17 Composites of Ti 3 AlC 2 and Ti 3 SiC 2 MAX phases have been investigated more than the MAX phase under investigation in this work, this includes composites with cBN [18][19][20][21][22] and with their MX counterparts. 23,24 However, the Ti 2 AlC MAX phase has not been studied as a composite with cBN thus far.…”

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confidence: 99%

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Utilization of moderate pressure and elevated temperatures in the optimization of Ti₂AlC‐cBN composites using SPS technique

Rampai

Sigalas

Whitefield

2021

Int J Ceramic Engine & Sci

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MAX phases are ternary compounds with both metallic and ceramic properties. 1 Ceramic material consisting of MAX phases are relatively ductile and machinable, yet also heat-tolerant, strong and lightweight. 1,2 Among the MAX phases reported so far, aluminum containing Ti 2 AlC and Ti 3 AlC 2 , are two of the most lightweight and oxidation resistant. 2-6 These two compositions show promise for many applications especially in the field of high temperature heat resisting materials. 4 Composites of Ti 2 AlC with other ceramics, such as Ti-Al, TiC and Al 2 O 3 , have been investigated using temperature

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Preparation and characterization of cBN-based composites from cBN-Ti3AlC2 mixtures

Cited by 21 publications

References 30 publications

Preparation and high-temperature wear behavior of NiAl-Ti₃AlC₂ fabricated by thermal explosion

Preparation and high-temperature wear behavior of NiAl-Ti₃AlC₂ fabricated by thermal explosion

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Utilization of moderate pressure and elevated temperatures in the optimization of Ti₂AlC‐cBN composites using SPS technique

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Preparation and characterization of cBN-based composites from cBN-Ti3AlC2 mixtures

Cited by 21 publications

References 30 publications

Preparation and high-temperature wear behavior of NiAl-Ti3AlC2 fabricated by thermal explosion

Preparation and high-temperature wear behavior of NiAl-Ti3AlC2 fabricated by thermal explosion

The Influence of Sintering Pressure on the Preparation, Friction Properties, and Magnetic Properties of Ti2AlC-TiC and Ti3AlC2-TiC Composites Under High-Pressure and High-Temperature

Utilization of moderate pressure and elevated temperatures in the optimization of Ti2AlC‐cBN composites using SPS technique

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Product

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About

Preparation and high-temperature wear behavior of NiAl-Ti₃AlC₂ fabricated by thermal explosion

Preparation and high-temperature wear behavior of NiAl-Ti₃AlC₂ fabricated by thermal explosion

Utilization of moderate pressure and elevated temperatures in the optimization of Ti₂AlC‐cBN composites using SPS technique