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Processing and Microstructural Characterization of TiB2 Liquid Phase Sintered with Ni and Ni3Al*

Published online by Cambridge University Press:  21 February 2011

P. Angelini ,
P. F. Becher ,
J. Bentley ,
C. B. Finch  and
P. S. Sklad
P. Angelini
Affiliation:
Metals and Ceramics DivisionOak Ridge National Laboratory, P.O. Box X, Oak Ridge, TN 37831, USA
P. F. Becher
Affiliation:
Metals and Ceramics DivisionOak Ridge National Laboratory, P.O. Box X, Oak Ridge, TN 37831, USA
J. Bentley
Affiliation:
Metals and Ceramics DivisionOak Ridge National Laboratory, P.O. Box X, Oak Ridge, TN 37831, USA
C. B. Finch
Affiliation:
Metals and Ceramics DivisionOak Ridge National Laboratory, P.O. Box X, Oak Ridge, TN 37831, USA
P. S. Sklad
Affiliation:
Metals and Ceramics DivisionOak Ridge National Laboratory, P.O. Box X, Oak Ridge, TN 37831, USA
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Abstract

An Analytical Electron Microscopy investigation of TiB2 hot-pressed and pressureless sintered with Ni revealed the presence of Ni3B and tau intergranular phase, respectively. Convergent Beam Electron Diffraction (CBED) was used for crystal structure determination and compositions were determined by quantitative x-ray Energy Dispersive Spectroscopy (EDS) and Electron Energy Loss Spectroscopy (EELS). The phase analyses were compared with phase diagram data. An evaluation was also made of TiB2 hot pressed with Ni3Al. Quantitative EDS and EELS microanalysis indicated a Ni,Al type boride tau (Cr23C6 type) intergranular phase.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 24: Symposium B – Defect Properties and Processing of High-Technology Nonmetallic Materials , 1983 , 299
Copyright
Copyright © Materials Research Society 1984

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Footnotes

*

Research sponsored by the Division of Materials Sciences, U.S. Department of Energy under contract W-7405-eng-26 with the Union Carbide Corporation.

References

REFERENCES

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