Whiskers of TiN by topochemical reaction

C. E. Bamberger; L. F. Allard; D. W. Coffey; M. R. Bennett

doi:10.1016/0022-0248(91)90911-N

Whiskers of TiN by topochemical reaction

C. E. Bamberger, L. F. Allard, D. W. Coffey, M. R. Bennett

Nuclear Energy Materials Microanalysis

Research output: Contribution to journal › Article › peer-review

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Abstract

It has been found that sodium titanate powder can be converted to TiN powder by treatment with gaseous ammonia at 1000°C. This observation has led to a test of the effect of ammonia on potassium titanate filaments. The result was a product which consisted of TiN filaments with essentially the same morphology as the starting titanate material. Examination of the filamentous material before and after the reaction (which we designated "topochemical") by scanning electron microscopy (SEM) and analytical transmission electron microscopy (TEM) confirmed that even single crystal filaments (whiskers) of K₂Ti₆O₁₃ were topochemically converted to TiN whiskers.

Original language	English
Pages (from-to)	47-54
Number of pages	8
Journal	Journal of Crystal Growth
Volume	112
Issue number	1
DOIs	https://doi.org/10.1016/0022-0248(91)90911-N
State	Published - May 2 1991

Funding

* Research sponsored by the United. States Department of Energy’s Division of Materials Sciences and Assistant Secretary for Conservation and Renewable Energy, Office of Transportation Systems, as part of the High Tempera-ture Materials Laboratory User Program, under contract DE-ACOS-840R21400 with Martin Marietta Energy Sys-tems Inc

Funders	Funder number
Division of Materials Sciences and Assistant Secretary for Conservation and Renewable Energy
Office of Transportation Systems	DE-ACOS-840R21400
States Department of Energy

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AU - Bamberger, C. E.

AU - Allard, L. F.

AU - Coffey, D. W.

AU - Bennett, M. R.

PY - 1991/5/2

Y1 - 1991/5/2

N2 - It has been found that sodium titanate powder can be converted to TiN powder by treatment with gaseous ammonia at 1000°C. This observation has led to a test of the effect of ammonia on potassium titanate filaments. The result was a product which consisted of TiN filaments with essentially the same morphology as the starting titanate material. Examination of the filamentous material before and after the reaction (which we designated "topochemical") by scanning electron microscopy (SEM) and analytical transmission electron microscopy (TEM) confirmed that even single crystal filaments (whiskers) of K2Ti6O13 were topochemically converted to TiN whiskers.

AB - It has been found that sodium titanate powder can be converted to TiN powder by treatment with gaseous ammonia at 1000°C. This observation has led to a test of the effect of ammonia on potassium titanate filaments. The result was a product which consisted of TiN filaments with essentially the same morphology as the starting titanate material. Examination of the filamentous material before and after the reaction (which we designated "topochemical") by scanning electron microscopy (SEM) and analytical transmission electron microscopy (TEM) confirmed that even single crystal filaments (whiskers) of K2Ti6O13 were topochemically converted to TiN whiskers.

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Whiskers of TiN by topochemical reaction

Abstract

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