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Tribological Characterization of Composites Based on Si_3N_4 Ceramics

机译：基于Si_3N_4陶瓷的复合材料的摩擦学品

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Silicon nitride (Si_3N_4) has excellent mechanical properties even at high temperatures, low inertia, high hardness, very good resistance to thermal shock and excellent friction and wear behavior. For this purpose, silicon nitride is used in various applications such as for welding nozzles, tools for metal transformation, calibration, control, bearing balls and prosthetic components for orthopedic surgery. This paper presents tribological behavior of two shades of nano-sized silicon nitride ceramics, the first is silicon nitride with 10 wt% of boron nitride (SN-BN) and the second is silicon nitride in β phase (β-SN). Tribological behavior was studied in dry sliding condition, by means of reciprocating ball-on-flat tribometer. The aim of this work is to study the effect of normal load and the counterface materials on tribological properties of SN-BN and β-SN ceramics. The results have shown that tribological properties of studied materials strongly depends on normal load and counterface material.
机译：氮化硅（Si_3N_4）即使在高温，惯性低，硬度高，对热休克和优异的摩擦和磨损行为的情况下也具有优异的机械性能。为此目的，氮化硅用于各种应用中，例如用于焊接喷嘴，用于矫形外科的金属转化，校准，控制，轴承球和假体部件的工具。本文呈现了两种纳米氮化硅陶瓷的摩擦学行为，第一是氮化硅，10wt％的氮化硼（Sn-Bn），第二是β相（β-Sn）中的氮化硅。通过往复式的球形摩擦计研究了干滑动条件的摩擦学行为。这项工作的目的是研究正常载荷和反面材料对SN-BN和β-SN陶瓷的摩擦学性质的影响。结果表明，研究的摩擦学性能强烈地取决于正常负载和抗面材料。

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