NDLI: Friction of polyoxymethylene homopolymer in highly loaded applications extrapolated from small-scale testing

Content Provider	Springer Nature Link
Author	Samyn, P. Baets, P.
Copyright Year	2005
Abstract	Most studies on tribology of polymer materials are traditionally performed on small-scale test specimens. However, to obtain data relevant for practical design of polymer parts in highly loaded bearings or sliding systems one must simulate real working conditions as close as possible on laboratory scale. In present work, a large-scale test rig has been used for determinating friction of a commercial polyoxymethylene homopolymer (POM-H). Test samples with contact area 22500 mm$^{2}$ are submitted to a reciprocating motion with stroke 230 mm under different contact pressures from 8 to 150 MPa and sliding velocity of 5 mm/s. Test results are compared to those obtained on a traditional cylinder-on-plate configuration and reveal lower friction on large-scale tests. However, general laws predicting the coefficient of friction as a function of normal loads cannot be used for extrapolation. Bulk and flash temperatures are calculated to explain transitions in friction mechanisms on both testing scales. Local surface temperatures are higher under large-scale sliding and allow for surface melting, which is not observed on small-scale tests. Although, sliding conditions implying an identical flash temperature induce polymer transfer only on large-scale tests, while no transfer occurs on small-scale tests. Even an artificial increase in small-scale bulk temperatures allowing for polymer transfer, is not able to provide low friction as observed on large-scale. An appropriate combination of load and sliding velocity is used for linear extrapolation of friction values, indicating the additional importance of bulk temperatures. When the polymer softening point is exceeded, creep at the polymer surface contributes to low friction.
Starting Page	177
Ending Page	189
Page Count	13
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	19
Issue Number	3
e-ISSN	15732711
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2005-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	POM-H large-scale testing friction extrapolation Physical Chemistry Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Friction of polyoxymethylene homopolymer in highly loaded applications extrapolated from small-scale testing

Large friction anisotropy of a polydiacetylene monolayer

Preliminary Friction Force Measurements on Small Bowel Lumen When Eliminating Sled Edge Effects

Nano and macro tribology of elastomers

Theoretical analysis of atomic-scale friction in frictional-force microscopy

Anisotropy Effects in Atomic-Scale Friction

Thermally Activated Friction

Measurement of Friction Noise Versus Contact Area of Rough Surfaces Weakly Loaded

Theory of Friction with Applied Load

Friction of polyoxymethylene homopolymer in highly loaded applications extrapolated from small-scale testing

Similar Documents

Friction of polyoxymethylene homopolymer in highly loaded applications extrapolated from small-scale testing

Large friction anisotropy of a polydiacetylene monolayer

Preliminary Friction Force Measurements on Small Bowel Lumen When Eliminating Sled Edge Effects

Nano and macro tribology of elastomers

Theoretical analysis of atomic-scale friction in frictional-force microscopy

Anisotropy Effects in Atomic-Scale Friction

Thermally Activated Friction

Measurement of Friction Noise Versus Contact Area of Rough Surfaces Weakly Loaded

Theory of Friction with Applied Load

Friction of polyoxymethylene homopolymer in highly loaded applications extrapolated from small-scale testing