Preparation of silicon nitride-titanium nitride and titanium-titanium nitride composites from (CH{sub 3}){sub 3}SiNHTiCl{sub 3}-coated Si{sub 3}N{sub 4} and Ti particles

Journal Article · Mon May 01 04:00:00 EDT 1995 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1995.tb08477.x· OSTI ID:69621

Narula, C K ^[1]; Demczyk, B G ^[2]; Czubarow, P; Seyferth, D ^[3]

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1. Ford Motor Co., Dearborn, MI (United States)
2. Univ. of Michigan, Ann Arbor, MI (United States). Electron Microbeam Analysis Lab.
3. Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemistry

[(Trimethylsilyl)amino]titanium trichloride, (CH{sub 3}){sub 3}-SiNHTiCl{sub 3}, was isolated as a red-orange crystalline solid in 58% Yield from the reaction of TiCl{sub 4} with [(CH{sub 3}){sub 3}Si]{sub 2} NH in 1:1 molar ratio in dichloromethane at {minus}78 C. Pyrolysis of (CH{sub 3}){sub 3}SiNHTiCl{sub 3} at 600 C furnished titanium nitride. This precursor is suitable for the preparation of composites and was employed to prepare Si{sub 3}N{sub 4}-TiN and Ti-TiN powders by adding Si{sub 3}N{sub 4} particles or titanium powders to a solution of (CH{sub 3}){sub 3} SiNHTiCl{sub 3} in dichloromethane, drying and pyrolyzing the resulting solid. This precursor also has been used as a binder to prepare Si{sub 3}N{sub 4}-TiN and Ti-TiN bodies. High-resolution transmission electron microscopic studies of the Si{sub 3}N{sub 4}-TiN composite showed that titanium nitride is concentrated on the surface of the Si{sub 3}N{sub 4} particles.

• Sponsoring Organization: USDOE
• OSTI ID: 69621
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 5 Vol. 78; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMMONIA
CHEMICAL REACTION KINETICS
CHLORIDES
COMPOSITE MATERIALS
ORGANOMETALLIC COMPOUNDS
PARTICULATES
PYROLYSIS
SILICON NITRIDES
SYNTHESIS
TITANIUM
TITANIUM NITRIDES
TRANSMISSION ELECTRON MICROSCOPY