Microstructure and tribological behavior of suspension plasma sprayed Al2O3 and Al2O3―YSZ composite coatings
Microstructure and tribological behavior of suspension plasma sprayed Al2O3 and Al2O3―YSZ composite coatings
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DOI：
10.1016/j.surfcoat.2010.06.003
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发表时间：
2010-11
影响因子：
5.4
通讯作者：
O. Tingaud;P. Bertrand;G. Bertrand
中科院分区：
文献类型：
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作者：
O. Tingaud;P. Bertrand;G. Bertrand
采用悬浮等离子喷涂（SPS）技术制备了几种氧化铝和氧化铝-氧化锆复合涂层，采用不同的操作条件以获得致密和内聚的结构。飞行中颗粒的温度和速度用商业诊断系统（Accuraspray®）在喷雾距离处测量，作为等离子体操作参数的函数。探测到的温度约为2000°C，速度高达450米/秒。因此，产生了具有大量α-氧化铝相的涂层。根据喷涂参数的微观结构演变进行了研究，以及最终的摩擦学性能显示出有效的耐磨性。
Several alumina and alumina–zirconia composite coatings were manufactured by suspension plasma spraying (SPS), implementing different operating conditions in order to achieve dense and cohesive structures. Temperatures and velocities of the in flight particles were measured with a commercial diagnostic system (Accuraspray®) at the spray distance as a function of the plasma operating parameters. Temperatures around 2000°C and velocities as high as 450m/s were detected. Hence, coatings with high amount of α-alumina phase were produced. The microstructure evolution according to the spray parameters was studied as well as the final tribological properties showing efficient wear resistance.