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Nanoprocessing of layered crystalline materials by atomic force microscopy.

Miyake S, Wang M - Nanoscale Res Lett (2015)

Bottom Line: By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds.Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level.It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

View Article: PubMed Central - PubMed

Affiliation: Department of Innovative System Engineering, Nippon Institute of Technology, Saitama, Japan.

ABSTRACT
By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds. Mica (muscovite), graphite, molybdenum disulfide (MoS2), and boron nitride have layered structures, and there is little interaction between the cleavage planes existing in the basal planes of these materials. Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level. This study reviews research evaluating the nanometer-scale wear and friction as well as the nanometer-scale mechanical processing of muscovite using atomic force microscopy (AFM). It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

No MeSH data available.


Related in: MedlinePlus

Hardness and Young’s modulus values evaluated by nanoindentation tests.
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Fig15: Hardness and Young’s modulus values evaluated by nanoindentation tests.

Mentions: The hardness and Young’s modulus of each layered crystalline material are shown in Figure 15. The hardness of HOPG is low. At loads lower than 250 μN, MoS2 is harder than HOPG. On the other hand, HOPG is harder than MoS2 at loads higher than 250 μN. The elastic modulus of HOPG is the lowest, whereas that of mica is the highest. The elastic modulus of MoS2 is the second highest after that of mica. As the applied load increases, the elastic modulus of MoS2 decreases.Figure 15


Nanoprocessing of layered crystalline materials by atomic force microscopy.

Miyake S, Wang M - Nanoscale Res Lett (2015)

Hardness and Young’s modulus values evaluated by nanoindentation tests.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4385287&req=5

Fig15: Hardness and Young’s modulus values evaluated by nanoindentation tests.
Mentions: The hardness and Young’s modulus of each layered crystalline material are shown in Figure 15. The hardness of HOPG is low. At loads lower than 250 μN, MoS2 is harder than HOPG. On the other hand, HOPG is harder than MoS2 at loads higher than 250 μN. The elastic modulus of HOPG is the lowest, whereas that of mica is the highest. The elastic modulus of MoS2 is the second highest after that of mica. As the applied load increases, the elastic modulus of MoS2 decreases.Figure 15

Bottom Line: By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds.Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level.It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

View Article: PubMed Central - PubMed

Affiliation: Department of Innovative System Engineering, Nippon Institute of Technology, Saitama, Japan.

ABSTRACT
By taking advantage of the mechanical anisotropy of crystalline materials, processing at a single-layer level can be realized for layered crystalline materials with periodically weak bonds. Mica (muscovite), graphite, molybdenum disulfide (MoS2), and boron nitride have layered structures, and there is little interaction between the cleavage planes existing in the basal planes of these materials. Moreover, it is easy to image the atoms on the basal plane, where the processed shape can be observed on the atomic level. This study reviews research evaluating the nanometer-scale wear and friction as well as the nanometer-scale mechanical processing of muscovite using atomic force microscopy (AFM). It also summarizes recent AFM results obtained by our research group regarding the atomic-scale mechanical processing of layered materials including mica, graphite, MoS2, and highly oriented pyrolytic graphite.

No MeSH data available.


Related in: MedlinePlus