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| 001 | 256355 | ||
| 005 | 20240711113744.0 | ||
| 024 | 7 | _ | |a 10.4028/www.scientific.net/MSF.825-826.125 |2 doi |
| 024 | 7 | _ | |a 1662-9752 |2 ISSN |
| 024 | 7 | _ | |a 0255-5476 |2 ISSN |
| 037 | _ | _ | |a FZJ-2015-06314 |
| 041 | _ | _ | |a English |
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| 100 | 1 | _ | |a Jasper, Bruno |0 P:(DE-Juel1)158038 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Powder Metallurgical Tungsten Fiber-Reinforced Tungsten |
| 260 | _ | _ | |a Uetikon |c 2015 |b Trans Tech Publ. |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1446120027_11737 |2 PUB:(DE-HGF) |
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| 520 | _ | _ | |a The composite material tungsten fiber-reinforced tungsten (Wf/W) addresses the brittleness of tungsten by extrinsic toughening through introduction of energy dissipation mechanisms. These mechanisms allow the release of stress peaks and thus improve the materials resistance against crack growth. Wf/W samples produced via chemical vapor infiltration (CVI) indeed show higher toughness in mechanical tests than pure tungsten. By utilizing powder metallurgy (PM) one could benefit from available industrialized approaches for composite production and alloying routes. In this contribution the PM method of hot isostatic pressing (HIP) is used to produce Wf/W samples. A variety of measurements were conducted to verify the operation of the expected toughening mechanisms in HIP Wf/W composites. The interface debonding behavior was investigated in push-out tests. In addition, the mechanical properties of the matrix were investigated, in order to deepen the understanding of the complex interaction between the sample preparation and the resulting mechanical properties of the composite material. First HIP Wf/W single-fiber samples feature a compact matrix with densities of more than 99% of the theoretical density of tungsten. Scanning electron microscopy (SEM) analysis further demonstrates an intact interface with indentations of powder particles at the interface-matrix boundary. First push-out tests indicate that the interface was damaged by HIPing. |
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| 700 | 1 | _ | |a Coenen, Jan W. |0 P:(DE-Juel1)2594 |b 1 |u fzj |
| 700 | 1 | _ | |a Riesch, Johann |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Höschen, Till |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Bram, Martin |0 P:(DE-Juel1)129591 |b 4 |u fzj |
| 700 | 1 | _ | |a Linsmeier, Christian |0 P:(DE-Juel1)157640 |b 5 |u fzj |
| 773 | _ | _ | |a 10.4028/www.scientific.net/MSF.825-826.125 |g Vol. 825-826, p. 125 - 133 |0 PERI:(DE-600)2047372-2 |p 125 - 133 |t Materials science forum |v 825-826 |y 2015 |x 1662-9752 |
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