The Effect of Ni Interlayers on Compaction of Mo/Mo Silicide Composites

Lucia Senčeková; Karol Iždinský; František Simančík; Pavol Štefánik; Pavol Švec

doi:10.4028/www.scientific.net/MSF.782.507

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HomeMaterials Science ForumMaterials Science Forum Vol. 782The Effect of Ni Interlayers on Compaction of...

The Effect of Ni Interlayers on Compaction of Mo/Mo Silicide Composites

Abstract:

Abstract: Reactions during compaction of Mo/Mo silicide wires with Ni interlayers are qualitatively assessed in this work. It appeared that due to extreme high temperature strength of MoSi₂ hot pressing even at 1800°C/60 min/30 MPa in vacuum had not been sufficient to compact the Mo/Mo silicide wires in the absence of any additional interfacial layer. Therefore Ni had been chemically coated on the surface of Mo/Mo silicide wires that were subsequently compacted by hot pressing. Structural analysis revealed the reaction between Ni and MoSi₂resulting in the formation of ternary (MoNiSi) compounds. These established an interfacial bonding with minimal porosity.

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Periodical:

Materials Science Forum (Volume 782)

Pages:

507-512

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.782.507

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Online since:

April 2014

Authors:

Lucia Senčeková, Karol Iždinský, František Simančík, Pavol Štefánik, Pavol Švec

Keywords:

Composite, Hot Pressing, Mo-Si System, Reactive Infiltration

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