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And friction force (FF) photos of your laser-patterned DLN film are shown in Figure ten. A region close to the corner in the microcrater Verdiperstat Description structure was examinedCoatings 2021, 11,12 ofto compare the friction forces around the original and laser-patterned DLN surface. Related to the earlier research [25], the LFM imaging was carried out using worn Si tips with all the tip radius of 0.five . The friction contrast is clearly noticed and characterized by considerably decrease friction forces in the laser-patterned region than around the original surface, see Figure 10b. Because of somewhat deep craters, the contribution in the surface relief slope for the lateral force signal is not completely compensated through subtraction of two lateral force photos [46], leading to “higher friction” in the crater edges. The reduce friction forces inside the laser-patterned region are accompanied with a lot lower pull-off forces (Fpull-off ) than on the original film, as confirmed by the force istance curves (Figure 11a) measured in unique positions in the FF image in Figure 10b, namely: (1) Fpull-off = 1290 nN on the original film, (2) Fpull-off = 990 nN near the area of Vatalanib Activator redeposited material, (three) Fpull-off = 63 nN in the region of redeposited material, and (four) Fpull-off = 16 nN in the center of a crater. This implies that the ablated and redeposited material adjustments the nanoscale surface properties within and around the laser-produced microcraters. The location of your low-friction area with redeposited material covers the distance of 102 from the crater edge and, which includes the crater, it covers a circle location of 157 radius. The occurrence of your region “2” with slightly decrease friction and pull-off force (than on original Coatings 2021, 11, FOR PEER Critique 13 of 16 Coatings 2021, 11, xxFOR PEER Review 13 of to surface) is likely triggered by mass distribution of ablated clusters/particles, major 16 variation in the structure and/or thickness of your redeposited layer.Figure 10. Surface relief (a) and friction force (b) pictures of the laser-patterned DLN film close to the corner of a microcrater Figure 10. Surface relief (a) and friction force (b) images of your laser-patterned DLN film near the corner of a microcrater Figure 10. Surface relief (a) and friction force (b) images of your laser-patterned DLN film close to the corner of a microcrater structure (shown in Figure 1a), load on Si tip 120 nN. The marked points (1,two,3,4) inside the image are the locations of forcestructure (shown in Figure 1a), load onon tiptip 120 nN. The marked points (1,2,three,4) inFFimageimage are the places of structure (shown in Figure 1a), load Si Si 120 nN. The marked points (1,two,three,4) in the FF FF would be the places of forcethe distancecurves measurements, shown in Figure 11. curves measurements, shown in Figure 11. distance force istance curves measurements, shown in Figure 11.Figure 11. (a) The force istance curves measured distinct points around the DLN film (marked in within the FF image in Figure Figure 11. (a) The force istance curves measured inindifferent points around the DLN film (markedthe FF image in Figure 10b): Figure 11. (a) The force istance curves measured in different points on the DLN film (markedin the FF image in Figure 10b): (1) original film, (2) close to the area of redeposited material, (3) inside the region of redeposited material, four) in the center 10b): (1) original film, (2) the area of redeposited material, (three) in(three) within the region of redeposited material, 4) in center of a (1) original film, (2) near near the regio.

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Author: haoyuan2014