Particle number density gradient samples for nanoparticle metrology with atomic force microscopy

2011 ◽  
Author(s):  
Malcolm A. Lawn ◽  
Renee V. Goreham ◽  
Jan Herrmann ◽  
Asa K. Jämting
Keyword(s):  
Atomic Force Microscopy ◽  
Density Gradient ◽  
Particle Number ◽  
Particle Number Density ◽  
Number Density ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Number density distribution of solvent molecules on a substrate: a transform theory for atomic force microscopy

2016 ◽  
Vol 18 (23) ◽  
pp. 15534-15544 ◽  
Author(s):  
Ken-ichi Amano ◽  
Yunfeng Liang ◽  
Keisuke Miyazawa ◽  
Kazuya Kobayashi ◽  
Kota Hashimoto ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Density Distribution ◽  
Number Density ◽  
Force Curve ◽  
Force Microscopy ◽  
Atomic Force ◽  
Hydration Structure ◽  
Solvent Molecules

A theory that transforms the force curve into a hydration structure is derived, and the transformation is demonstrated.

scholarly journals Probing the nanofriction of non-halogenated phosphonium-based ionic liquid additives in glycol ether oil on titanium surface

Friction ◽  
2021 ◽  
Author(s):  
Xiuhua Qiu ◽  
Linghong Lu ◽  
Zhenyu Qu ◽  
Jiongtao Liao ◽  
Qi Fan ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Titanium Surface ◽  
Friction Reduction ◽  
Number Density ◽  
Density Profiles ◽  
Dibutyl Ether ◽  
Force Microscopy ◽  
Molar Ratios ◽  
Atomic Force ◽  
Oil Mixtures

AbstractThe nanofrictional behavior of non-halogentated phosphonium-based ionic liquids (ILs) mixed with diethylene glycol dibutyl ether in the molar ratios of 1:10 and 1:70 was investigated on the titanium (Ti) substrate using atomic force microscopy (AFM). A significant reduction is observed in the friction coefficient μ for the IL-oil mixtures with a higher IL concentration (1:10, μ ∼ 0.05), compared to that for the lower concentration 1:70 (μ ∼ 0.1). AFM approaching force-distance curves and number density profiles for IL-oil mixtures with a higher concentration revealed that the IL preferred to accumulate at the surface forming IL-rich layered structures. The ordered IL-rich layers formed on the titanium surface facilitated the reduction of the nanoscale friction by preventing direct surface-to-surface contact. However, the ordered IL layers disappeared in the case of lower concentration, resulting in an incomplete boundary layers, because the ions were displaced by molecules of the oil during sliding and revealed to be less efficient in friction reduction.

scholarly journals Correction: Number density distribution of solvent molecules on a substrate: a transform theory for atomic force microscopy

2016 ◽  
Vol 18 (29) ◽  
pp. 19973-19974
Author(s):  
Ken-ichi Amano ◽  
Yunfeng Liang ◽  
Keisuke Miyazawa ◽  
Kazuya Kobayashi ◽  
Kota Hashimoto ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Density Distribution ◽  
Chem Phys ◽  
Number Density ◽  
Force Microscopy ◽  
Atomic Force ◽  
Solvent Molecules ◽  
Phys Chem Chem Phys

Correction for ‘Number density distribution of solvent molecules on a substrate: a transform theory for atomic force microscopy’ by Ken-ichi Amano et al., Phys. Chem. Chem. Phys., 2016, 18, 15534–15544.

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