Fabrication and performance of Al/Cu hybrid mandrel for NIF ignition hohlraum

Zhao Liping; Xing Pifeng; Yang Mengsheng; Zheng Fengcheng; Yi Taimin; Xie Jun; Yuan Guanghui

doi:3255

Volume 25 Issue 12

Dec. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(12): 3255-3258

Deng Wenhui, Tang Caixue, Chen Xianhua, et al. Path segment division and feed-rate solution in ion beam figuring[J]. High Power Laser and Particle Beams, 2013, 25: 3292-3296. doi: 3292

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Zhao Liping, Xing Pifeng, Yang Mengsheng, et al. Fabrication and performance of Al/Cu hybrid mandrel for NIF ignition hohlraum[J]. High Power Laser and Particle Beams, 2013, 25: 3255-3258. doi: 3255

Deng Wenhui, Tang Caixue, Chen Xianhua, et al. Path segment division and feed-rate solution in ion beam figuring[J]. High Power Laser and Particle Beams, 2013, 25: 3292-3296. doi: 3292

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Fabrication and performance of Al/Cu hybrid mandrel for NIF ignition hohlraum

doi: 3255

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China

Received Date: 2013-07-22
Rev Recd Date: 2013-08-04
Publish Date: 2013-12-15

Abstract

Abstract

By comparing the chemical component and machined performance of two kinds of 1100 Al rod, the higher purity one is chosen for Al mandrel. Al mandrel is prepared by diamond turning machine with a surface roughness less than 20 nm (RMS) and Al/Cu hybrid mandrel is explored by depositing a 5 m thick copper layer on Al mandrel via magnetron sputtering deposition. The surface roughness, thickness uniformity and crystallinity of Cu film are analyzed by white light interferometer, XRD. The results show that the prepared Cu film with surface roughness less than 30 nm (RMS), thickness uniformity more than 95%, and cylindricity less than 1 m appears (111) preferential orientation growth. The interfacial bonding strength between Cu film and substrate is strong enough for depositing 11 m thick hohlraum wall containing depleted uranium (DU).
- inertial confinement fusion,
- Al/Cu hybrid mandrel,
- magnetron sputtering,
- surface roughness,
- crystallinity

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