High-temperature tribological behavior of ZrO2–MoS2–CaF2 self-lubricating composites

High Temperature Self-Lubricating Materials

“…Recently, a ZrO2 matrix high temperature self-lubricating composite with addition of MoS2 and CaF2 as lubricants prepared using hot pressing method was investigated from room temperature to 1000 °C [14,89]. The ZrO2-MoS2-CaF2 composites had favorable microhardness (HV 824±90) and fracture toughness (6.5±1.4 MPa m 1/2 ), and against SiC ceramic exhibited excellent self-lubricating and anti-wear properties at a wide temperature range.…”

“…Yet, the efforts to explore novel high temperature self-lubricating materials possessing favorable frictional property and superior wear resistance abilities have never stopped. As a result, great strides have been made in recent years in the fabrication and diverse utilization of new high temperature self-lubricating materials that are capable of satisfying the multifunctional needs of more advanced mechanical systems [10][11][12][13][14][15]. The following tribological issues addressed in this chapter are presented:…”

A Summarization of Tribological Behaviors of Self-Lubricating Composite Ceramic Tool

“…In dry machining, because the tool in one or several materials of chemical reaction will occur at high temperature, the formation of a new material to change the friction coefficient of the contact surface on the tool surface e.g. : The low friction was attributed to a new lubricant CaMoO which formed on the worn surfaces at high temperatures [1]. MoS worked as a solid lubricant prepared self-lubricating textured tools.…”

Synthesis of CaF2 Nanoparticles Coated by SiO2 for Improved Al2O3/TiC Self-Lubricating Ceramic Composites

“…Wu et al [17] prepared an Al 2 O 3 /TiC/CaF 2 multicomponent gradient self-lubricating ceramic composite by the hot-pressing method, showing that the addition of CaF 2 could improve the antifriction properties of the ceramic composite. In the work by Kong et al [21], a ZrO 2 –MoS 2 –CaF 2 self-lubricating composite was prepared. A ZrO 2 matrix composite showed a good tribological behavior over a wide temperature range with the addition of MoS 2 and CaF 2 .…”