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Commercially available Tungsten Plates

Commercially available Tungsten Plates. Cime Bocuze (St Pierre-en Faucigny, France) Plansee (Reutte, Austria). W HCAL Prototype meeting in Annecy 24/9/2009. W. Klempt CERN/PH. W Composite Material (Cime Bocuze). Consist of W ( ≥ 90%) rest mixture of (Fe), Ni, Cu …  = 17 – 18 g/cm 3

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Commercially available Tungsten Plates

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  1. Commercially available Tungsten Plates Cime Bocuze (St Pierre-en Faucigny, France) Plansee (Reutte, Austria) W HCAL Prototype meeting in Annecy 24/9/2009 W. Klempt CERN/PH

  2. W Composite Material (Cime Bocuze) • Consist of W (≥ 90%) rest mixture of (Fe), Ni, Cu … •  = 17 – 18 g/cm3 • Λ ≈ 10 cm, X0 ≈ 0.4 cm • Well established production procedure • Easy to machine (i.e. sawing/cuting of plates) 1500 °C

  3. Product Range and Material Properties

  4. Mechanical Properties

  5. Pure Tungsten Plate Production (Plansee) Produce ingots (weight ≤ 500kg) Sintering temp. 2000-2500 °C Roll to final thickness 2000-2500 °C

  6. Mechanical Properties of Pure Tungsten • Sintered Tungsten exhibits low ductility (is rather brittle) atroom temperature. • Its mechanical properties are situated somewhere between metals and ceramics and are very dependent on small (~ 1%) admixtures (Re, La2O3 etc. ) • It’s Young’s modulus is known (≈2 x ESS) • But it is not easy to get other engineering values like:stress- strain diagram, tensile strength, fracture elongationetc.. • A single load test will not give enough information, other series of measurements are needed; • Plansee is willing to help us with these values

  7. Comparison of Mechanical Properties *Alloys used must be paramagnetic, **Tests required

  8. Plate size and tolerances • Currently available plate sizes • Thickness of 12 mm is feasible for both • Flatness tolerance ca. 1.5 mm • ≤ 1 mm possible • Thickness tolerance ± 0.5 mm • With machining ± 0.1 mm (cost ↑)

  9. Machinability • Abrasive water jet cutting is suitable • Holes, slots & various cut-outs are possible • Precision of ± 0.1 mm is possible (but very expensive)

  10. Magnetic properties of Densimet 180

  11. Magnetic properties of Densimet 180 μ

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