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Diffusional bonding reactions between silicon nitride, silicon oxynitride and Incoloy 909 by hot isostatic pressing
Luleå tekniska universitet.
1987 (English)In: High technology joining: 5th International conference : Papers., BNF Metals Technology Centre , 1987, p. 11.1-11.8Conference paper, Published paper (Refereed)
Abstract [en]

Recent advances in production processes of high performance ceramics have made it possible to produce fully dense net shape turbocharger and gas turbine rotors made of silicon nitride. These rotors must usually be attached to a metal shaft by some joining technique. Solid state bonding by diffusion reactions is an attractive route to achieve joints that retain strength at high temperature. Intimate mechanical contact across the joint during bonding is important for the diffusion process. Hot isostatic pressing (HIP) can enhance the contact area and might produce a stronger joint at a lower bonding temperature than other methods. Silicon oxynitride synthesized from a stoichiometric mixture of silicon nitride and silicon oxide by HIP has some interesting properties that might be usesful as an intermediate layer in bonding silicon nitride to metals. This work is a part of an assessment to develop solid state bonding methods for the joining of silicon nitride to superalloys by HIP. It presents the first steps in the development, such as synthesis of pure silicon oxynitride, joining of the oxynitride to silicon nitride and the first attempt at a comparative study of joining reactions between silicon nitride and the superalloy vs. silicon oxynitride and the superalloy. Graphs, Photomicrographs, Diffraction patterns.

Place, publisher, year, edition, pages
BNF Metals Technology Centre , 1987. p. 11.1-11.8
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-38470Local ID: ce1e4cc0-93a6-11de-8da0-000ea68e967bOAI: oai:DiVA.org:ltu-38470DiVA, id: diva2:1011971
Conference
High Technology Joining : 03/11/1987 - 05/11/1987
Note

Godkänd; 1987; 20090828 (andbra)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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Loberg, Bengt

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