Adhesion force measurements between deep-sea soil particles and metals by in situ AFM
Adhesion force measurements between deep-sea soil particles and metals by in situ AFM
复制标题
原位 AFM 测量深海土壤颗粒与金属之间的粘附力
DOI：
10.1016/j.clay.2017.08.011
复制
发表时间：
2017
影响因子：
5.6
通讯作者：
Ding YH
中科院分区：
文献类型：
--
作者：
Ma W. B.;Qi C. L.;Liu Q.;Ding Y. H.;Ma W. B.;Qi C. L.;Liu Q.;Ding Y. H.;Zhu W.;Ma WB;Ding YH
用自制的试验装置成功地将太平洋C-C区深海土壤颗粒固定在商用AFM-B上。利用该探针，利用原子力显微镜原位测量了深海土壤颗粒与四种金属之间的粘附力分布。研究了影响粘附力的因素。在相同粗糙度下，土壤颗粒与金属表面的粘附力大小为：铝合金（5052）<钛合金（STi 80）<纯钛（TA 2）<钛合金（TC 4），说明5052的自清洁性能优于其它几种。在一定范围内，随着粗糙度的增大，粘附力减小。基于JKR接触模型，由表面能和接触半径确定了附着力。
Deep-sea soil particles collected from the Pacific C-C areaweresuccessfully immobilizedon commercial AFMcantileverby a home-made test apparatus. Using this modified probe, adhesion force distribution between the deep-sea soil particle and four metals was measured by in situ AFM. The factors influencing the adhesion force were investigated. The adhesion forces between soil particles and the metal surface were ranked in an order of aluminum alloy (5052) < titanium alloy (STi80) < pure titanium (TA2) < titanium alloy (TC4) under same roughness, indicating the self-cleaning property of 5052 is better than the others. Furthermore, the results suggest the adhesion force decreases as the roughness increases within a certain range. The adhesion forces were determined by the surface energy and the contact radius based on JKR contact model.