Performance evaluation of cyanate ester resin

Author

Voss, G. ; Fabian, P. ; Feucht, S. ; Harte, M. ; Terry, C.

Author_Institution

Culham Sci. Centre, EURATOM/UKAEA Fusion Assoc., Abingdon, UK

fYear

2003

fDate

14-17 Oct. 2003

Firstpage

181

Lastpage

184

Abstract

Traditional epoxy resin systems have long been used for vacuum impregnation of large electro-magnets. However, the mechanical strength of these systems is disappointingly low when operated at temperatures above about 70°C where the failure mechanism is more often by adhesion at the copper interface than by cohesion within the resin. A range of resin systems based on cyanate ester are currently being developed by CTD Inc. which are suitable for vacuum impregnation and may offer advantages over the epoxy resin systems. In order to assess the thermo-mechanical performance of these newly developed materials a programme of testing and evaluation of the basic cyanate ester resin (CTD 403) has been carried out and the results are presented here.

Keywords

adhesion; compressive strength; electromagnets; epoxy insulation; fracture toughness; fracture toughness testing; fusion reactor materials; impregnated insulation; shear strength; tensile strength; 70 degC; adhesion; cohesion; copper interface; cyanate ester resin; electromagnets; epoxy resin systems; failure mechanism; materials testing; mechanical strength; thermomechanical performance; vacuum impregnation; Compressive stress; Copper; Epoxy resins; Geometry; Glass; Insulation testing; Manufacturing; System testing; Temperature; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 2003. 20th IEEE/NPSS Symposium on

Print_ISBN

0-7803-7908-X

Type

conf

DOI

10.1109/FUSION.2003.1426618

Filename

1426618