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Title: Steel bonded dense silicon nitride compositions and method for their fabrication

Abstract

A two-stage bonding technique for bonding high density silicon nitride and other ceramic materials to stainless steel and other hard metals, and multilayered ceramic-metal composites prepared by the technique are disclosed. The technique involves initially slurry coating a surface of the ceramic material at about 1500/sup 0/C in a vacuum with a refractory material and the stainless steel is then pressure bonded to the metallic coated surface by brazing it with nickel-copper-silver or nickel-copper-manganese alloys at a temperature in the range of about 850/sup 0/ to 950/sup 0/C in a vacuum. The two-stage bonding technique minimizes the temperature-expansion mismatch between the dissimilar materials.

Inventors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
5587189
Application Number:
ON: DE86013718
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 33 ADVANCED PROPULSION SYSTEMS; SILICON NITRIDES; BONDING; CHEMICAL COMPOSITION; DENSITY; ELASTICITY; THERMAL CONDUCTIVITY; THERMAL EXPANSION; STEELS; ALUMINIUM OXIDES; COPPER ALLOYS; CORROSION RESISTANCE; DOPED MATERIALS; EXPERIMENTAL DATA; INTERNAL COMBUSTION ENGINES; LAYERS; NICKEL BASE ALLOYS; SLURRIES; YTTRIUM OXIDES; ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; DATA; DISPERSIONS; ENGINES; EXPANSION; FABRICATION; HEAT ENGINES; INFORMATION; IRON ALLOYS; IRON BASE ALLOYS; JOINING; MATERIALS; MECHANICAL PROPERTIES; MIXTURES; NICKEL ALLOYS; NITRIDES; NITROGEN COMPOUNDS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PNICTIDES; SILICON COMPOUNDS; SUSPENSIONS; TENSILE PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 360601* - Other Materials- Preparation & Manufacture; 360101 - Metals & Alloys- Preparation & Fabrication; 360103 - Metals & Alloys- Mechanical Properties; 360603 - Materials- Properties; 330100 - Internal Combustion Engines

Citation Formats

Landingham, R L, and Shell, T E. Steel bonded dense silicon nitride compositions and method for their fabrication. United States: N. p., 1985. Web.
Landingham, R L, & Shell, T E. Steel bonded dense silicon nitride compositions and method for their fabrication. United States.
Landingham, R L, and Shell, T E. Mon . "Steel bonded dense silicon nitride compositions and method for their fabrication". United States.
@article{osti_5587189,
title = {Steel bonded dense silicon nitride compositions and method for their fabrication},
author = {Landingham, R L and Shell, T E},
abstractNote = {A two-stage bonding technique for bonding high density silicon nitride and other ceramic materials to stainless steel and other hard metals, and multilayered ceramic-metal composites prepared by the technique are disclosed. The technique involves initially slurry coating a surface of the ceramic material at about 1500/sup 0/C in a vacuum with a refractory material and the stainless steel is then pressure bonded to the metallic coated surface by brazing it with nickel-copper-silver or nickel-copper-manganese alloys at a temperature in the range of about 850/sup 0/ to 950/sup 0/C in a vacuum. The two-stage bonding technique minimizes the temperature-expansion mismatch between the dissimilar materials.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {5}
}