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Friction and Wear of TiN–Si3N4 Nanocomposites in Pair with SHKH15

V.Kolesnichenko,
 
O.Zgalat-lozinskyi,
 
V.Varchenko,
 
M.Herrmann,
 
A.Ragulya
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #11/12
http://www.materials.kiev.ua/article/1288

Abstract

Spark plasma sintering is used to produce dense silicon nitride nanoceramics with titanium nitride additions and nanofiber-reinforced composites. The sintered nanocomposites demonstrate quite high mechanical properties (HV ≈ 14–16 GPa, K1c ≈ 4.8 MPa ⋅ m1/2) and low dry friction coefficient (f ≈ 0.65–0.68) and mass wear (~0.2–0.4 mg/km) in pair with ShKh15 steel. The nanocomposite strengthened with 3.8 wt.% silicon nitride nanofibers shows the most balanced mechanical and tribotechnical characteristics.


NANOCOMPOSITE, SILICON CARBIDE, SPARK PLASMA SINTERING, TITANIUM NITRIDE, WEAR RESISTANCE

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