Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN

A target assembly, composed of several collinear molybdenum (Mo)‐based and tungsten (W)‐based cylindrical blocks, will reside in the core of the new beam dump facility (BDF) being designed at the European Laboratory for Particle Physics (CERN). The target blocks will be protected from the cooling wa...

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Autores principales: Descarrega, Josep Busom, Calviani, Marco, Hutsch, Thomas, López Sola, Edmundo, Fontenla, Ana Teresa Pérez, Marcone, Antonio Perillo, Sgobba, Stefano, Weißgärber, Thomas
Lenguaje:eng
Publicado: 2020
Acceso en línea:https://dx.doi.org/10.1002/mdp2.101
http://cds.cern.ch/record/2709398
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author Descarrega, Josep Busom
Calviani, Marco
Hutsch, Thomas
López Sola, Edmundo
Fontenla, Ana Teresa Pérez
Marcone, Antonio Perillo
Sgobba, Stefano
Weißgärber, Thomas
author_facet Descarrega, Josep Busom
Calviani, Marco
Hutsch, Thomas
López Sola, Edmundo
Fontenla, Ana Teresa Pérez
Marcone, Antonio Perillo
Sgobba, Stefano
Weißgärber, Thomas
author_sort Descarrega, Josep Busom
collection CERN
description A target assembly, composed of several collinear molybdenum (Mo)‐based and tungsten (W)‐based cylindrical blocks, will reside in the core of the new beam dump facility (BDF) being designed at the European Laboratory for Particle Physics (CERN). The target blocks will be protected from the cooling water erosion‐corrosion by a tantalum (Ta)‐based cladding.In order to obtain intimate and reliable bonding between the several cylinders composing each target block and with the cladding, hot isostatic pressing (HIP) assisted diffusion bonding technique was explored. Several down‐scaled target block prototypes were conceived to investigate the bondings. Starting from the previously gained experience in Ta cladding on W from neutron spallation targets, here, we present results on Ta cladding on TZM (Mo alloy), Ta2.5W (Ta alloy) cladding on TZM and W, and on TZM to TZM and W to W self‐bondings. The resulting interfaces were systematically characterized with electron microscopy, tensile testing, and thermal conductivity measurements.Successful diffusion bonding was achieved for all the studied material combinations, resulting in homogeneous and defect‐free interfaces, strong interfacial bondings, and limited interfacial thermal contact resistance. The HIP parameters and diffusion interfacial aids were of great importance to optimize the interface and bulk material properties.
id oai-inspirehep.net-1778593
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling oai-inspirehep.net-17785932021-08-30T15:09:32Zdoi:10.1002/mdp2.101http://cds.cern.ch/record/2709398engDescarrega, Josep BusomCalviani, MarcoHutsch, ThomasLópez Sola, EdmundoFontenla, Ana Teresa PérezMarcone, Antonio PerilloSgobba, StefanoWeißgärber, ThomasApplication of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERNA target assembly, composed of several collinear molybdenum (Mo)‐based and tungsten (W)‐based cylindrical blocks, will reside in the core of the new beam dump facility (BDF) being designed at the European Laboratory for Particle Physics (CERN). The target blocks will be protected from the cooling water erosion‐corrosion by a tantalum (Ta)‐based cladding.In order to obtain intimate and reliable bonding between the several cylinders composing each target block and with the cladding, hot isostatic pressing (HIP) assisted diffusion bonding technique was explored. Several down‐scaled target block prototypes were conceived to investigate the bondings. Starting from the previously gained experience in Ta cladding on W from neutron spallation targets, here, we present results on Ta cladding on TZM (Mo alloy), Ta2.5W (Ta alloy) cladding on TZM and W, and on TZM to TZM and W to W self‐bondings. The resulting interfaces were systematically characterized with electron microscopy, tensile testing, and thermal conductivity measurements.Successful diffusion bonding was achieved for all the studied material combinations, resulting in homogeneous and defect‐free interfaces, strong interfacial bondings, and limited interfacial thermal contact resistance. The HIP parameters and diffusion interfacial aids were of great importance to optimize the interface and bulk material properties.CERN-PBC-Notes-2021-002oai:inspirehep.net:17785932020
spellingShingle Descarrega, Josep Busom
Calviani, Marco
Hutsch, Thomas
López Sola, Edmundo
Fontenla, Ana Teresa Pérez
Marcone, Antonio Perillo
Sgobba, Stefano
Weißgärber, Thomas
Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN
title Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN
title_full Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN
title_fullStr Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN
title_full_unstemmed Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN
title_short Application of hot isostatic pressing (HIP) technology to diffusion bond refractory metals for proton beam targets and absorbers at CERN
title_sort application of hot isostatic pressing (hip) technology to diffusion bond refractory metals for proton beam targets and absorbers at cern
url https://dx.doi.org/10.1002/mdp2.101
http://cds.cern.ch/record/2709398
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