Results 231 to 240 of about 5,847,187 (287)

The Wear of Cross-Linked Polyethylene against Itself

Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 1996
Cross-linked polyethylene (XLPE) may have an application as a material for an all-plastic surface replacement finger joint. It is inexpensive, biocompatible and can be injection-moulded into the complex shapes that are found on the ends of the finger bones. Further, the cross-linking of polyethylene has significantly improved its mechanical properties.
T J, Joyce, H E, Ash, A, Unsworth
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A Double-Blind, Prospective, Randomized Controlled Trial Comparing Highly Cross-Linked and Conventional Polyethylene in Primary Total Hip Arthroplasty

Journal of Arthroplasty, 2009
Highly cross-linked polyethylene was developed to reduce articular bearing wear in total hip arthroplasty. In vitro studies have shown reduced wear in comparison with conventional polyethylene.
Horne, J Geoffrey, Jan Fielden, Adams, Kathryn, Calvert, George T, Devane, Peter A., J. Geoffrey Horne, Fielden, Jan, Devane, Peter A, Geoffrey Horne, J., George T. Calvert, Peter A. Devane, Calvert, George T., Kathryn Adams   +12 more
exaly   +2 more sources

The Morphology of Cross-Linked Polyethylene Insulation

IEEE Transactions on Electrical Insulation, 1978
Cross-linked polyethylene, now commonly used for insulation of underground electric distribution cables, is susceptible to electrochemical treeing, in common with other polymeric dielectrics. This treeing phenomenon sometimes originates at holes or cavities present in the cable.
J. Muccigrosso, P. J. Phillips
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Multiple morphologies in cross-linked polyethylene

Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1980, 1980
Here, a radial section of an uncross-linked miniature extruded cable was studied, the cable having been polished and cut in half, and then each half treated with one etchant. Both etchants revealed the spherulitic structure (Figure 1), much greater penetration having occurred in the case of the permanganic etchant.
D. V. Brower, K. L. Naylor, P. J. Phillips   +2 more
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Hardness and creep of cross-linked polyethylene

Polymer, 1989
Abstract Vickers microhardness, tensile and compression tests and creep experiments have been performed at 22°C on electron beam irradiated high density polyethylene (HDPE). The microhardness and compression strengths were found to increase progressively with increasing dose in the range 0-500 kGy but the tensile strength was relatively constant. The
P.J. Henderson, A.J. Wallace
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Cross-Linked Polyethylene for Higher Voltages

IEEE Transactions on Power Apparatus and Systems, 1967
The rapid evolution of cross-linked polyethylene for high-voltage cable applications and the factors which promoted this development are discussed in relation to the growing demand for solid-dielectric constructions. Advances in cable design and technology are outlined for this thermally-stable insulation, highlighting the technical advantages of ...
A. McKean, F. Oliver, S. Trill
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Kinetics of solidification of cross-linked polyethylene

Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1982, 1982
In the production of extruded dielectric cables the molten polymer is invariably quenched following extrusion. During this process crystallization of the polymer occurs at a series of different temperatures depending on the thermal conductivity of the polymer in question.
Y.-H. Kao, H.-T. Tseng, P. J. Phillips
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Study on Cross-Linking Degree of Polyethylene

Advanced Materials Research, 2013
In this paper, the linear low density polyethylene (LLDPE) was melted and cross-linked by dicumyl peroxide (DCP) used to prepare cross-linked polyethylene (XPE). The gel content was determined by extraction method. The effect of content of cross-linker, cross- linked time, cross-linked temperature and other factors on the gel content were studied.
Li Qiu Zou, Guang Feng Wu
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Surface properties of cross-linked polyethylene

1998 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.98CH36257), 2002
This study reports on the loss of hydrophobicity of cross-linked polyethylene (XLPE) insulation. Specimens of steam cured XLPE cut from a nominal 28 kV/sub rms/ cable were immersed in saline solutions of varying conductivities from 5 to 10/sup 5/ /spl mu/S/cm over a wide range of temperatures from 0 to 98/spl deg/C.
M. Ashraf Khan, R. Hackam
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Highly Cross-Linked Polyethylenes

2011
Osteolysis after total joint replacement using ultra-high molecular weight Polyethylene bearing components has been shown to be a major factor for the long-term failure of such components. Highly cross-linked polyethylene has already been introduced in the late 1970s and demonstrated to have superior wear resistance compared to non-irradiated and ...
openaire   +1 more source