Influence of a Walnut Shell Biochar Additive on the Tribological and Rheological Properties of Vegetable Lubricating Grease

This paper presents the results of a study on the effect of a biochar additive produced via pyrolysis at 400 °C and 500 °C from waste biomass, i.e., walnut shells, on the tribological and rheological properties of vegetable lubricating compositions. Sunflower oil and amorphous silica, used as a thic...

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Bibliographic Details
Published in:	Lubricants
Main Authors:	Rafal Kozdrach, Pawel Radulski
Format:	Article
Language:	English
Published:	MDPI AG 2025-05-01
Subjects:	lubricants sunflower oil amorphous silica tribological properties biochar additive dynamic viscosity
Online Access:	https://www.mdpi.com/2075-4442/13/5/213

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