A critical review on self-lubricating ceramic-composite cutting tools

Akhtar, Syed Sohail

doi:10.1016/j.ceramint.2021.04.094

Cited by 66 publications

(34 citation statements)

References 166 publications

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“…For all of the above reasons, the SiC-TiB 2 -TiC system can be an excellent composite material for cutting tool applications, which combines all of the necessary component properties, such as lightweight and high mechanical, thermal, electrical, and tribological properties [ 41 , 42 , 43 ], which have been confirmed by previous studies in this system ( Figure 1 ).…”

Section: Introductionsupporting

confidence: 75%

Processing and Characterization of Spark Plasma Sintered SiC-TiB2-TiC Powders

et al. 2022

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SiC-TiB2-TiC composites with matrices consisting of semiconductor material (SiC), conductive materials (TiB2-TiC), or their combination were fabricated by spark plasma sintering (SPS) at 2000 °C in a vacuum under a pressure of 80 MPa for 3 min. The composition and microstructure of the obtained composites were studied by X-ray diffraction and a scanning electron microscope equipped with an energy-dispersive detector. The flexural strength, Vickers hardness, and fracture toughness of SPSed samples were determined. Based on the observations in this work, three variations of the sintering process were proposed with different matrix compositions. The dense (99.7%) 60SiC-25TiB2-15TiC vol.% sintered ceramic composites exhibited the highest strength and hardness values of the studied composites, as well as a fracture toughness of 6.2 MPa·m1/2.

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Section: Introductionsupporting

confidence: 75%

Processing and Characterization of Spark Plasma Sintered SiC-TiB2-TiC Powders

et al. 2022

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“…In most of the works, a 10–15 wt% Ag inclusion was found to be the optimum concentration for wear reduction. Figure 4 shows the CoF and relative wear rates for various Ag-based solid-lubricating materials on a wide range of sliding temperatures, as reported in recent publications [ 10 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. The relative wear rate values are calculated after dividing the wear rate value at the reported temperature by room temperature (RT) value.…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 85%

“…It is seen that a silver content of ~15 wt% or more in a host material is beneficial in a decrease in CoF and wear with an increase in temperature [ 14 , 15 ]. At temperature < 400 °C, sufficient reduction in CoF and wear of Ag deposited on Al 2 O 3 substrate is demonstrated [ 16 , 17 ]. However, upon an increase in temperature, the wear rate is accelerated due to expulsion and an increased softening of Ag layers [ 17 ].…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

“…At temperature < 400 °C, sufficient reduction in CoF and wear of Ag deposited on Al 2 O 3 substrate is demonstrated [ 16 , 17 ]. However, upon an increase in temperature, the wear rate is accelerated due to expulsion and an increased softening of Ag layers [ 17 ]. A reduced and stable CoF at both 400 and 600 °C was reported in Ni-Ag composite [ 18 ].…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

“…However, the bonding between the individual layers or planes is characterized by weaker Vander Wall forces. The weak interlayer forces provide an isotropic shear ability with an easy shear along the basal planes [ 17 ]. Hence, this class of materials, when included in the matrix as an SL, offers notable anti-friction capability [ 3 ].…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

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Solid Lubrication at High-Temperatures—A Review

et al. 2022

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Understanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal is majorly governed by the changes in surface reactivity and wear mechanisms. The use of lubricants to minimize friction, wear and flash temperature to prevent seizing is a common approach in engine tribology. However, the degradation of conventional liquid-based lubricants at temperatures beyond 300 °C, in addition to its harmful effects on human and environmental health, is deeply concerning. Solid lubricants are a group of compounds exploiting the benefit of wear diminishing mechanisms over a wide range of operating temperatures. The materials incorporated with solid lubricants are herein called ‘self-lubricating’ materials. Moreover, the possibility to omit the use of conventional liquid-based lubricants is perceived. The objective of the present paper is to review the current state-of-the-art in solid-lubricating materials operating under dry wear conditions. By opening with a brief summary of the understanding of solid lubrication at a high temperature, the article initially describes the recent developments in the field. The mechanisms of formation and the nature of tribo-films (or layers) during high-temperature wear are discussed in detail. The trends and ways of further development of the solid-lubricating materials and their future evolutions are identified.

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Recent Advancements in the Fabrication of Ceramic Matrix Composite: A Critical Review

Choudhary

Brar

2023

Lecture Notes in Mechanical Engineering

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A critical review on self-lubricating ceramic-composite cutting tools

Cited by 66 publications

References 166 publications

Processing and Characterization of Spark Plasma Sintered SiC-TiB2-TiC Powders

Processing and Characterization of Spark Plasma Sintered SiC-TiB2-TiC Powders

Solid Lubrication at High-Temperatures—A Review

Recent Advancements in the Fabrication of Ceramic Matrix Composite: A Critical Review

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