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Title: Radiation Resistance of XLPE Nano-dielectrics for Advanced Reactor Applications

Abstract

Recently there has been renewed interest in nuclear reactor safety, particularly as commercial reactors are approaching 40 years service and lifetime extensions are considered, as well as for new reactor building projects around the world. The materials that are currently used in cabling for instrumentation, reactor control, and communications include cross-linked polyethylene (XLPE), ethylene propylene rubber (EPR), polyvinyl chloride (PVC), neoprene, and chlorosulfonated polyethylene. While these materials show suitable radiation tolerance in laboratory tests, failures before their useful lifetime occur due to the combined environmental effects of radiation, temperature and moisture, or operation under abnormal conditions. In addition, the extended use of commercial reactors beyond their original service life places a greater demand on insulating materials to perform beyond their current ratings in these nuclear environments. Nanocomposite materials that are based on XLPE and other epoxy resins incorporating TiO2, MgO, SiO2, and Al2O3 nanoparticles are being fabricated using a novel in-situ method established at ORNL to demonstrate materials with increased resistance to radiation. As novel nanocomposite dielectric materials are developed, characterization of the non-irradiated and irradiated nanodielectrics will lead to a knowledge base that allow for dielectric materials to be engineered with specific nanoparticle additions for maximum benefit to wide-varietymore » of radiation environments found in nuclear reactors. This paper presents the initial findings on the development of XLPE-based SiO2 nano-composite dielectrics in the context of electrical performance and radiation degradation.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Org.:
USDOE
OSTI Identifier:
1150885
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 2014 ANS Annual Meeting, Reno, NV, USA, 20140615, 20140619
Country of Publication:
United States
Language:
English
Subject:
dielectrics; radiation resistant materials

Citation Formats

Duckworth, Robert C, Polyzos, Georgios, Paranthaman, Mariappan Parans, Aytug, Tolga, Leonard, Keith J, and Sauers, Isidor. Radiation Resistance of XLPE Nano-dielectrics for Advanced Reactor Applications. United States: N. p., 2014. Web.
Duckworth, Robert C, Polyzos, Georgios, Paranthaman, Mariappan Parans, Aytug, Tolga, Leonard, Keith J, & Sauers, Isidor. Radiation Resistance of XLPE Nano-dielectrics for Advanced Reactor Applications. United States.
Duckworth, Robert C, Polyzos, Georgios, Paranthaman, Mariappan Parans, Aytug, Tolga, Leonard, Keith J, and Sauers, Isidor. 2014. "Radiation Resistance of XLPE Nano-dielectrics for Advanced Reactor Applications". United States.
@article{osti_1150885,
title = {Radiation Resistance of XLPE Nano-dielectrics for Advanced Reactor Applications},
author = {Duckworth, Robert C and Polyzos, Georgios and Paranthaman, Mariappan Parans and Aytug, Tolga and Leonard, Keith J and Sauers, Isidor},
abstractNote = {Recently there has been renewed interest in nuclear reactor safety, particularly as commercial reactors are approaching 40 years service and lifetime extensions are considered, as well as for new reactor building projects around the world. The materials that are currently used in cabling for instrumentation, reactor control, and communications include cross-linked polyethylene (XLPE), ethylene propylene rubber (EPR), polyvinyl chloride (PVC), neoprene, and chlorosulfonated polyethylene. While these materials show suitable radiation tolerance in laboratory tests, failures before their useful lifetime occur due to the combined environmental effects of radiation, temperature and moisture, or operation under abnormal conditions. In addition, the extended use of commercial reactors beyond their original service life places a greater demand on insulating materials to perform beyond their current ratings in these nuclear environments. Nanocomposite materials that are based on XLPE and other epoxy resins incorporating TiO2, MgO, SiO2, and Al2O3 nanoparticles are being fabricated using a novel in-situ method established at ORNL to demonstrate materials with increased resistance to radiation. As novel nanocomposite dielectric materials are developed, characterization of the non-irradiated and irradiated nanodielectrics will lead to a knowledge base that allow for dielectric materials to be engineered with specific nanoparticle additions for maximum benefit to wide-variety of radiation environments found in nuclear reactors. This paper presents the initial findings on the development of XLPE-based SiO2 nano-composite dielectrics in the context of electrical performance and radiation degradation.},
doi = {},
url = {https://www.osti.gov/biblio/1150885}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2014},
month = {Wed Jan 01 00:00:00 EST 2014}
}

Conference:
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