James & Son
Veteran Member
Memorandum on Solid Lubricants
This is an interesting read as the issues in this article pretty much parallel the issues for the science on the subject today up to 2014. See why below.
Read it here
http://onlinelibrary.wiley.com/doi/10.1002/j.2050-0416.1920.tb06502.x/pdf
or read it here, which includes the credits and 1920 publish date
https://archive.org/stream/memorandumonsoli00grearich/memorandumonsoli00grearich_djvu.txt
The issue back then was to use the nano colloidal graphite mixture of the day where applicable which was for fine clearance bearings and to add in coarser materials for the rougher surfaces.
The science is still saying the same thing today. Nano plus sub micron and micron in an oil reduces wear more than nano by itself for rougher surfaces.
The all round mix may be causing one problem. On very small clearances as in cam lobe/follower interface the wrong mix and quantity can block the oil entry of the EHD oil film. Here nano should work wonders as it is suitable since we need a smaller partical to enter the film.
So why not nano for cam shaft additives.( Liqui Moly has no nano additive) Well seems the big push by the science was to have the lub. producers on board as of 2014.
3 problems as of 2014: Storage problem , the negative interaction with detergent/ dispersants and black colour. Does not seem to be any break through in these areas yet.
This is an interesting read as the issues in this article pretty much parallel the issues for the science on the subject today up to 2014. See why below.
Read it here
http://onlinelibrary.wiley.com/doi/10.1002/j.2050-0416.1920.tb06502.x/pdf
or read it here, which includes the credits and 1920 publish date
https://archive.org/stream/memorandumonsoli00grearich/memorandumonsoli00grearich_djvu.txt
The issue back then was to use the nano colloidal graphite mixture of the day where applicable which was for fine clearance bearings and to add in coarser materials for the rougher surfaces.
The science is still saying the same thing today. Nano plus sub micron and micron in an oil reduces wear more than nano by itself for rougher surfaces.
The all round mix may be causing one problem. On very small clearances as in cam lobe/follower interface the wrong mix and quantity can block the oil entry of the EHD oil film. Here nano should work wonders as it is suitable since we need a smaller partical to enter the film.
So why not nano for cam shaft additives.( Liqui Moly has no nano additive) Well seems the big push by the science was to have the lub. producers on board as of 2014.
3 problems as of 2014: Storage problem , the negative interaction with detergent/ dispersants and black colour. Does not seem to be any break through in these areas yet.