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Old 04-07-2025, 11:42 AM   #365 (permalink)
aerohead
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' friction coefficients '

Quote:
Originally Posted by Logic View Post
Ionic
Same as Molybdenum Disulphide, but I don't think MoS2 forms a protective ceramic layer on the metal surface and does not have the crazy low coefficient of friction of Boric Acid.
I havent researched it nearly as much as H3BO3.


The above results demonstrate that with a mixture of boric acid and an oil lubricant, the friction coefficients are reduced by 10 to over 1000% below those of the unmixed lubricant itself. The wear rates of pins are reduced by factors of 50 to 100 below those of pins tested in unmixed oil itself.
https://patents.google.com/patent/US5431830A/en
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While friction coefficients are basically independent of 'load' ( ASTM wear test ), they ARE proportional to 'viscosity'
* hence viscosimeter testing of Dr. Erdemir's 50% (wt) H2o/ Boric Acid test mixture
* ( magnetically-stirring-mixture by the way for, 2-hours prior to the pin-on-disk test )
* in water of viscosity 1.0038 cSt @ 20-C
* internal combustion engines immediately self-destruct with lubricants with viscosities of below 3 cSt
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