Tribology & Lubrication Technology
 November 2025

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This issue of the digital TLT is sponsored by Acme-Hardesty .

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FEATURES

INDUSTRY INSIGHTS (STLE MEMBER BONUS CONTENT)

Investigating mechanical properties of recycled steel for application in the bearing industry
Recycled steel could meet the high standards required for bearings while also reducing the environmental footprint of manufacturing. 

20 MINUTES

20 Minutes With Sam Burkett
This senior technical director discusses biobased lubricants and the value of collaboration.

MARKET TRENDS

Base oils market paradox
What’s behind the surge of new Group III/III+ base oil plants?

LUBRICATION FUNDAMENTALS

Electric motors
The four Maxwell equations that give all the information needed to understand classical electromagnetics. 

WEBINARS

Vehicle fluids
Electrified environments present new tribology challenges for vehicle fluids.
 

FEATURE ARTICLE

Lubricant inerting: An idea whose time has come again?
Recent advances in nitrogen concentrators have revived an old idea: running lubricated systems under an inert atmosphere.

TECH BEAT I 

Supercritical water oxidation (SCWO): Destruction of PFAS
A new technology effectively eliminates PFAS from wastewater producing effluent that is compliant with local regulations.

TECH BEAT II 

Lithium extraction using unique membrane technology
A new approach enables lithium to be isolated from two other elements, magnesium and sodium, both present at higher concentrations in water.

TECH BEAT III 

Solid-state batteries: New approach for preparing electrolytes
Densification of high temperature ceramics alongside polymer additives creates a solid electrolyte that promotes charge transport. 

SOUNDING BOARD 

Oil analysis and artificial intelligence
Readers share their insights on artificial intelligence.

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CMF PLUS
Some of the industry’s most innovative companies recap presentations from STLE’s 2025 Commercial Marketing Forum.

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COLUMNS

Wear of the skin on your feet

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