CAJ | 학술논문

在多孔阳极氧化铝(AAO)模板上的有序纳米孔中电化学沉积过渡金属Co作为催化剂,通过催化化学气相沉积法在650 ℃下制备出有序、均匀的定向碳纳米棒阵列膜;采用扫描电镜(SEM) 及高分辨率透射电镜(HRTEM) 等方法分析定向碳纳米棒阵列膜的微观结构;并利用球-盘摩擦磨损实验仪讨论真空环境中(1×10~(-1) Pa)阵列膜的摩擦磨损性能,其中AAO模板上定向碳纳米棒阵列膜样品作为盘,对偶件为直径3 mm的钢球.实验结果表明:在真空环境中,AAO模板上定向碳纳米棒阵列膜具有良好的摩擦磨损性能,并且其摩擦系数随着载荷的增加而降低,随速度的增加而先降低后增大,在滑动速度为0.2 m/s时摩擦系数最小.
재다공양겁양화려(AAO)모판상적유서납미공중전화학침적과도금속Co작위최화제,통과최화화학기상침적법재650 ℃하제비출유서、균균적정향탄납미봉진렬막;채용소묘전경(SEM) 급고분변솔투사전경(HRTEM) 등방법분석정향탄납미봉진렬막적미관결구;병이용구-반마찰마손실험의토론진공배경중(1×10~(-1) Pa)진렬막적마찰마손성능,기중AAO모판상정향탄납미봉진렬막양품작위반,대우건위직경3 mm적강구.실험결과표명:재진공배경중,AAO모판상정향탄납미봉진렬막구유량호적마찰마손성능,병차기마찰계수수착재하적증가이강저,수속도적증가이선강저후증대,재활동속도위0.2 m/s시마찰계수최소.
The array film of aligned carbon nanorods was prepared by catalytic chemical vapor deposition on an anodic aluminum oxide (AAO) template at 650 ℃.The morphology and microstructure of array film of aligned carbon nanorods were examined by scanning electron microscopy (SEM) and high resolution transmission electron microscope (HRTEM).The friction and wear properties of array film of aligned carbon nanorods on the AAO template in vacuum (1×10~(-1) Pa) were investigated using a ball-on-disk wear tester with array film specimen serving as the disk.The ball specimens with 3 mm in diameter were fabricated from a quenched- and-tempered steel.The array film of aligned carbon nanorods presented good friction stability and good wear resistance in vacuum.The friction coefficient first decreased with sliding velocity then increased with increase in sliding velocity,and was the minimum at 0.2 m/s.