Effects of neutron/gamma irradiation at 4 K on shear and compressive properties of insulation

Reed, R. P.; Fabian, P. E.; Bauer-McDaniel, T.S.; Hazelton, C. S.; Munshi, N. A.

doi:10.1016/0011-2275(95)90903-s

Cited by 11 publications

(1 citation statement)

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“…Clinard [I] and Bruzzone [2] have investigated the use of ceramics in this area, but have limited their approach to ceramic coatings. Likewise, recent characterization and test programs in the U.S. by Fabian [3] , Schutz [4,5] and Reed [6] have studied plasma-sprayed ceramics as electrical barriers for insulation in the ITER program. While these insulations had acceptable strength and electrical properties, and were very beneficial in improving the radiation resistance, they are hard or expensive to apply to long lengths of conductor and large coils.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and electrical properties of wrappable ceramic insulation

Rice

Fabian²,

Hazelton³

1999

IEEE Trans. Appl. Supercond.

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High field accelerator and fusion magnets demand superior electrical insulation for top performance. To achieve maximum field strength and system lifetime, high strength and high modulus insulation must be employed. A new wrappable inorganic insulation system has been developed that combines the high strength and modulus of a ceramic composite with the ease of processing of an organic insulation. This new ceramic insulation is applied prior to the superconductor heat treatment and can be processed from 600° to 900OC. These properties make it ideal for wind and react manufacturing methods, thus allowing more complex coil designs and reduced processing costs. Development work on the ceramic insulation described here has achieved double the compression modulus of current high strength organic insulation. This paper describes the thermal, mechanical and electrical performance of this wrappable inorganic insulation system. Shear, compression, and dielectHc breakdown strength tests results are presented.

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