How does the lubribricity of lamellar structured nano and macro additives additives related to the interlayer spacing?

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Can anyone help me to identify the species in thin section (red arrow)?

This is a Miocene limestone thin section and the specimens is probably belongs to the larger benthic foraminiferal group.

05 February 2024 3,709 1 View

Can anyone help me to identify the species in thin section (blue arrows).?

This is from Miocene limestone and we are thinking this is a section of larger foraminifera.

05 February 2024 9,164 1 View

In ASTM 4170 fretting wear , is it necessary to have the exact dimensions of the bearing race and the number of the balls?

ASTM 4170 indicates the usage of 9 balls in a thrust bearings and the bearing ball diameter is 7.1mm. However, is it wrong if we use a 11 nos. ball thrust bearing and 6.5mm ball diameter? other...

06 November 2023 6,013 0 View

PCR inhibitor: Isopropyl acetate (2.5%)?

If extracted viral RNA contains 2.5% isopropyl acetate, would it be acting as PCR inhibitor?

20 October 2020 3,229 3 View

How does Lithium helps in controlling friction and wear in lubricants?

Tribology of lithium.

09 December 2019 554 2 View

How to calculate lipid concentration for Large unilamellar vesicles (LUVs)?

I am trying to find out a suitable technique to calculate the lipid concentration of LUVs. In between the preparation process I loose a portion of the lipid. So want to know how to calculate the...

01 May 2019 7,559 4 View

Does all mineral oil contains asphaltenes?

I had a mineral oil of 460cSt (containing sulphur and phosphorus), after addition of nanparticles (carbon nano tubes and graphene) the viscosity decreased significantly. literatures says that the...

16 August 2018 6,607 1 View

What is the difference between traction coefficient and coefficient of friction?

Two oils were tested. Mineral oil and a vegetable oil. The coefficient of friction of the vegetable was found to be lesser than mineral oil but the roughness was higher in vegetable oil.

02 November 2017 7,457 2 View

Which is more preferable mixed lubrication regime or boundary lubrication regime?

Case I : An experiment was conducted using some additives. The additives formed a protective layer on the steel surfaces which reduced the roughness and hence h/Ra increased. Case II: When the...

04 July 2016 2,013 6 View

How does Young's modulus,shear modulus,Poisson ratio of a nano wire/tube/particle influence the coefficient of friction?

Mechanical properties influencing coefficnet of friction.

21 June 2016 1,483 2 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

Who of all of you will help TPEOM to re-originate the Earths atmosphere to it original 5 atmospheric elements/gases?

Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...

06 August 2024 8,716 0 View

Binder for ZnO nanoparticles in graphite paste electrode?

I have been using paraffin, but the deposited ZnO still detach from electrode. What is the best binder to modify graphite paste electrode with ZnO nanoparticles?

03 August 2024 4,624 3 View

Why chloride turns into chlorine gas in a Downs cell?

I imagine the battery drives the graphite into a carbocation, then chloride is oxidized to donate the electron to the carbocation, but what pushes the lost electrons of chloride to be shared...

03 August 2024 5,384 0 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Question about combustion Kinetics ?

I am currently working on modeling FCC catalyst regeneration and have come across a point of uncertainty that I hope you can assist me with. In my previous models, I have utilized lumped kinetics...

30 July 2024 6,137 0 View