Alumina in unlubricated sliding point, line and plane contacts

Peter Andersson, Adam Blomberg

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)

Abstract

The study is based on unlubricated sliding self-mated tests with high-grade alumina in three different contact geometries. In each contact geometry, both mild and severe wear were observed; at the normal force of 30 N that was applied on each test, the transition into severe wear occurred at a velocity specific to the geometry. The wear transition involved surface fracture caused by mechanical and thermal stresses. Part of the wear debris produced under severe wear was compacted under friction and formed smooth tribofilms on the mating surfaces. Larger contact areas allowed slightly higher sliding velocities under a given normal force. The bearing capability of alumina, however, was quite low. Alumina can be recommended only for dry sliding applications in which the load and speed safely remain below the limit for the transition from mild to severe wear.

Original languageEnglish
Pages (from-to)191 - 198
Number of pages8
JournalWear
Volume170
Issue number2
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

Fingerprint

Aluminum Oxide
sliding
Alumina
aluminum oxides
Wear of materials
Geometry
Bearings (structural)
geometry
self tests
thermal stresses
debris
Debris
Thermal stress
grade
friction
Friction

Cite this

Andersson, Peter ; Blomberg, Adam. / Alumina in unlubricated sliding point, line and plane contacts. In: Wear. 1993 ; Vol. 170, No. 2. pp. 191 - 198.
@article{2eb07e5182084dc7bbe923370950e9ff,
title = "Alumina in unlubricated sliding point, line and plane contacts",
abstract = "The study is based on unlubricated sliding self-mated tests with high-grade alumina in three different contact geometries. In each contact geometry, both mild and severe wear were observed; at the normal force of 30 N that was applied on each test, the transition into severe wear occurred at a velocity specific to the geometry. The wear transition involved surface fracture caused by mechanical and thermal stresses. Part of the wear debris produced under severe wear was compacted under friction and formed smooth tribofilms on the mating surfaces. Larger contact areas allowed slightly higher sliding velocities under a given normal force. The bearing capability of alumina, however, was quite low. Alumina can be recommended only for dry sliding applications in which the load and speed safely remain below the limit for the transition from mild to severe wear.",
author = "Peter Andersson and Adam Blomberg",
note = "Project code: KOT1033",
year = "1993",
doi = "10.1016/0043-1648(93)90240-M",
language = "English",
volume = "170",
pages = "191 -- 198",
journal = "Wear",
issn = "0043-1648",
publisher = "Elsevier",
number = "2",

}

Alumina in unlubricated sliding point, line and plane contacts. / Andersson, Peter; Blomberg, Adam.

In: Wear, Vol. 170, No. 2, 1993, p. 191 - 198.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Alumina in unlubricated sliding point, line and plane contacts

AU - Andersson, Peter

AU - Blomberg, Adam

N1 - Project code: KOT1033

PY - 1993

Y1 - 1993

N2 - The study is based on unlubricated sliding self-mated tests with high-grade alumina in three different contact geometries. In each contact geometry, both mild and severe wear were observed; at the normal force of 30 N that was applied on each test, the transition into severe wear occurred at a velocity specific to the geometry. The wear transition involved surface fracture caused by mechanical and thermal stresses. Part of the wear debris produced under severe wear was compacted under friction and formed smooth tribofilms on the mating surfaces. Larger contact areas allowed slightly higher sliding velocities under a given normal force. The bearing capability of alumina, however, was quite low. Alumina can be recommended only for dry sliding applications in which the load and speed safely remain below the limit for the transition from mild to severe wear.

AB - The study is based on unlubricated sliding self-mated tests with high-grade alumina in three different contact geometries. In each contact geometry, both mild and severe wear were observed; at the normal force of 30 N that was applied on each test, the transition into severe wear occurred at a velocity specific to the geometry. The wear transition involved surface fracture caused by mechanical and thermal stresses. Part of the wear debris produced under severe wear was compacted under friction and formed smooth tribofilms on the mating surfaces. Larger contact areas allowed slightly higher sliding velocities under a given normal force. The bearing capability of alumina, however, was quite low. Alumina can be recommended only for dry sliding applications in which the load and speed safely remain below the limit for the transition from mild to severe wear.

U2 - 10.1016/0043-1648(93)90240-M

DO - 10.1016/0043-1648(93)90240-M

M3 - Article

VL - 170

SP - 191

EP - 198

JO - Wear

JF - Wear

SN - 0043-1648

IS - 2

ER -