Aluminium and titanium nitride coatings on graphite, prepared by pyrolysis of a polymeric precursor film

Jaschek, R.; Rüssel, Christian

doi:10.1016/0040-6090(92)90938-8

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…This was demonstrated by reacting Ti(NMe 2 ) 4 with aliphatic primary and secondary amines to form Ti/N-containing polymers, which formed TiN upon pyrolysis . This work was further expanded by exploring zirconium/nitrogen polymers and other MN complexes. − An important advancement was realized by Paine and co-workers, who reported a PCP for the formation of TiNB . Urea has proven to be a reliable metal linker as well.…”

Section: Chemistry and Synthesismentioning

confidence: 99%

Advances in the Synthesis of Preceramic Polymers for the Formation of Silicon-Based and Ultrahigh-Temperature Non-Oxide Ceramics

et al. 2023

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Preceramic polymers (PCPs) are a group of specialty macromolecules that serve as precursors for generating inorganics, including ceramic carbides, nitrides, and borides. PCPs represent interesting synthetic challenges for chemists due to the elements incorporated into their structure. This group of polymers is also of interest to engineers as PCPs enable the processing of polymer-derived ceramic products including high-performance ceramic fibers and composites. These finished ceramic materials are of growing significance for applications that experience extreme operating environments (e.g., aerospace propulsion and high-speed atmospheric flight). This Review provides an overview of advances in the synthesis and postpolymerization modification of macromolecules forming nonoxide ceramics. These PCPs include polycarbosilanes, polysilanes, polysilazanes, and precursors for ultrahigh-temperature ceramics. Following our review of PCP synthetic chemistry, we provide examples of the application and processing of these polymers, including their use in fiber spinning, composite fabrication, and additive manufacturing. The principal objective of this Review is to provide a resource that bridges the disciplines of synthetic chemistry and ceramic engineering while providing both insights and inspiration for future collaborative work that will ultimately drive the PCP field forward.

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Section: Chemistry and Synthesismentioning

confidence: 99%

Advances in the Synthesis of Preceramic Polymers for the Formation of Silicon-Based and Ultrahigh-Temperature Non-Oxide Ceramics

et al. 2023

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“…Such contaminants tend to degrade the electronic, thermal, and mechanical properties of the materials. Some other approaches to metal nitride powder synthesis are transferred-arc plasma synthesis, aerosol reactor synthesis, direct reaction of the metal halide with liquid NH 3 , and anodic dissolution of themetal in an organic amine solution. − The latter two techniques are closely related to the strategy we describe here.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Synthesis of Ceramic Materials. 5. An Electrochemical Method Suitable for the Preparation of Nine Metal Nitrides

1997

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We discuss an electrochemical approach suitable for preparing nine metal nitride precursors and the corresponding metal nitrides. The method involves anodic dissolution of a metal electrode in a single-compartment electrochemical cell containing an electrolyte solution consisting of liquid NH 3 and NH 4 X (X ) Br or Cl). Following evaporation of the solvent and calcination of the resulting powder at temperatures between 375 and 1100°C, we obtain the metal nitride corresponding to the anode material. Using this approach metal nitride ceramic powders corresponding to Al, Ga, Mo, Nb, Ni, Ti, V, W, and Zr have been prepared. We also describe a simple modification to the metal nitride synthesis that is suitable for the preparation of composite metal nitride powders. The ceramic materials were characterized primarily by powder X-ray diffraction. The calcination conditions determine the resulting phase, composition, and morphology of the product. For example, when Ar is used to calcine the Mo nitride precursor Mo 2 N obtains, but when NH 3 is the calcination gas we obtain MoN. Calcination of the precursors at different temperatures results in ceramic powders having different phases.

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Residual stresses in TiN-coated graphite

Chid

Liou

1993

J Mater Sci Lett

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Aluminium and titanium nitride coatings on graphite, prepared by pyrolysis of a polymeric precursor film

Cited by 9 publications

References 3 publications

Advances in the Synthesis of Preceramic Polymers for the Formation of Silicon-Based and Ultrahigh-Temperature Non-Oxide Ceramics

Advances in the Synthesis of Preceramic Polymers for the Formation of Silicon-Based and Ultrahigh-Temperature Non-Oxide Ceramics

Electrochemical Synthesis of Ceramic Materials. 5. An Electrochemical Method Suitable for the Preparation of Nine Metal Nitrides

Residual stresses in TiN-coated graphite

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