Results 211 to 220 of about 15,702 (253)

Wear Debris Shape Classification

2020
Wear debris is produced in all machines containing moving parts. Wear debris or particles separate from these moving parts because of close contacts and friction and are contained in oil in an oil-wetted system. Analysis of wear debris provides important information about the condition of a machine.
Mohammad Shakeel Laghari, Ahmed Hassan, Mubashir Noman   +2 more
openaire   +1 more source

Characterization of wear debris in total elbow arthroplasty

Journal of Shoulder and Elbow Surgery, 2013
The purpose of this study was to evaluate wear debris in periprosthetic tissues at the time of revision total elbow arthroplasty. Polyethylene, metallic, and bone cement debris were characterized, and the tissue response was quantified.Capsular and medullary tissue samples were collected during revision surgery. Polyethylene debris was characterized by
Judd S, Day, Ryan M, Baxter, Matthew L, Ramsey, Bernard F, Morrey, Patrick M, Connor, Steven M, Kurtz, Marla J, Steinbeck   +6 more
openaire   +2 more sources

Microstructure of Cu–Be alloy triboxidative wear debris

Acta Materialia, 2007
Abstract The wear mechanism in disk-on-disk tests of a Cu–Be alloy against AISI D2 steel counterparts changes from metallic to oxidative for increasing loads. At low load the wear debris are made of the Cu–Be alloy, whereas above 50 N the main constituents are copper oxides, with a few residual particles of the copper-base alloy.
Scardi, Paolo, Leoni, Matteo, Straffelini, Giovanni, G. B. De Giudici   +3 more
openaire   +1 more source

The biologic responses to orthopedic implants and their wear debris

Clinical Materials, 1992
The use of artificial materials in the treatment of orthopaedic conditions, most notably arthritis, over the past few decades has been increasing dramatically. Such use makes an understanding of the tissue responses to the various materials necessary to determine their effectiveness and acceptability.
E F, DiCarlo, P G, Bullough
openaire   +2 more sources

Instrumentation circuitry for an inductive wear debris sensor

10th IEEE International NEWCAS Conference, 2012
The design of instrumentation circuitry for an inductive sensor to detect small metal particles is presented. The sensor, designed for counting and characterizing wear debris particles in lubrication oil, detects changes in the inductance of a small coil as metal particles pass through it.
Joseph P. Davis, Joan E. Carletta, Robert J. Veillette, Li Du, Jiang Zhe   +4 more
openaire   +1 more source

In situ complement activation by polyethylene wear debris

Journal of Biomedical Materials Research, 2000
A frequent long-term complication of total joint arthroplasty is aseptic loosening, the end result of wear debris accumulation, synovitis, and osteolysis about the implant-bone or cement-bone interface. Complement, an effector system in plasma, synovial fluid, and tissue, has powerful chemotactic, inflammatory, and osteoclast-activating potentials ...
D H, DeHeer, J A, Engels, A S, DeVries, R H, Knapp, J D, Beebe   +4 more
openaire   +2 more sources

Granulomatosis associated to porcelain wear debris.

American journal of dentistry, 2002
To determine the origin of a cryptogenic granulomatosis using an innovative diagnosis technique.A patient affected by fever of unknown origin for 9 years was diagnosed with colestasis and acute renal failure with pathological evidence, in parenchimal samples, of granulomatosis of unknown origin.
GATTI, Antonietta, M. Ballestri, A. Bagni   +2 more
openaire   +2 more sources

Surface Feature Recognition of Wear Debris

2002
Microscopic wear debris is produced in all machines containing moving parts in contact. The debris (particles), transported by a lubricant from wear sites; carry important information relating to the condition of the machinery. This information is classified by compositional and six morphological attributes of particle size, shape, edge details, color,
openaire   +1 more source

The Nature of Wear Debris Generated During Lubricated Wear-In

A S L E Transactions, 1983
The microstructure and chemical makeup of wear debris generated during short-term lubricated wear experiments is being investigated. Two types of debris have been identified: (1) metal flakes and (2) submicron metal particles imbedded in a gel-like lubricant product. The particle-gel structure was found for both stearic acid and pure dimethyl silicone.
openaire   +1 more source

Wear Mechanism of Artificial Joint Failure Using Wear Debris Analysis

Journal of Nanoscience and Nanotechnology, 2018
Aseptic loosening is one of the main failure modes in artificial joints. Significant information about the aseptic loosening is carried by the wear debris of the joints. In this paper, the wear debris acquired from the ultrahigh molecular weight polyethylene (UHMWPE) artificial joints is prepared and a systematic research is carried out to investigate ...
Zhang, Daoming, Liu, Hongtao, Wang, Jianmei, Sheng, Chenxing, Li, Zhixiong   +4 more
openaire   +3 more sources