Microstructural Aspects of Si₃N₄-TiC Composites Affecting Abrasion and Erosion Resistance

Harder than diamond: dreams and reality

“…Recently obtained nanocomposites in the systems B±C±N (Hubert et al 1998 (Zhang et al 1995), and Si 3 N 4 +TiC (Wayne et al 1991) are intriguing candidates. Harder than diamond: trends in the search The main groups of hard compounds and the ways for creating new hard materials discussed above are summarized in ®gure 6.…”

Erosion and abrasion of chromium carbide based cermets produced by different methods

“…It is generally agreed that carbide particle size and porosity as well as binder content and composition have to be taken into consideration when wear resistance is discussed [1][2][3][4][5]. The method of materials manufacturing may determine the final microstructure and, therefore, a behavior of cermet subjected to erosive and/or abrasive wear.…”

Fractography, Mechanical Properties, and Microstructure of Commercial Silicon Nitride–Titanium Nitride Composites

“…It has been published that abrasive wear resistance is proportional to hardness and K Ic , 28,29 and inversely proportional to the grain size of the second phase 30 . For the current case, abrasive wear resistance proportional to HV 1/2 × K Ic 3/4 has been suggested 28,31 .…”

“…For many brittle materials, however, microstructural properties such as grain size, 30 secondary phases, and porosity play an important role in the wear process 32 . Uncertainties in ceramic wear response derive from the fact that mechanisms of material removal involve plasticity and fracture at submicrometer scales near the surface that may not be fully reflected by macroscopic hardness and toughness.…”