Literature DB >> 25100332

In situ controlled growth of titanium nitride in amorphous silicon nitride: a general route toward bulk nitride nanocomposites with very high hardness.

Mirna Chaker Bechelany1, Vanessa Proust, Christel Gervais, Rudy Ghisleni, Samuel Bernard, Philippe Miele.   

Abstract

Bulk nanocomposites possessing very high hardness in which TiN nanocrystallites are homogeneously embedded in an amorphous Si3N4 matrix are produced from perhydropolysilazane and tetrakisdimethylaminotitanium. That is, a low-molecular-weight TiN molecule is mixed in controlled molar ratio with a polymeric Si3N4 precursor; further processing, including ammonolysis, warm pressing, and controlled nanocrystal growth, yields nanocomposites with the desired properties.
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  bulk; hardness; nanocomposites; silicon nitride; titanium nitride

Year:  2014        PMID： 25100332     DOI： 10.1002/adma.201402356

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  5 in total

Review 1.  Ceramic Nanocomposites from Tailor-Made Preceramic Polymers.

Authors:  Gabriela Mera; Markus Gallei; Samuel Bernard; Emanuel Ionescu
Journal:  Nanomaterials (Basel)       Date:  2015-04-01       Impact factor: 5.076

Review 2.  Polymer-Derived Boron Nitride: A Review on the Chemistry, Shaping and Ceramic Conversion of Borazine Derivatives.

Authors:  Samuel Bernard; Philippe Miele
Journal:  Materials (Basel)       Date:  2014-11-21       Impact factor: 3.623

3.  Novel Precursor-Derived Meso-/Macroporous TiO₂/SiOC Nanocomposites with Highly Stable Anatase Nanophase Providing Visible Light Photocatalytic Activity and Superior Adsorption of Organic Dyes.

Authors:  Eranezhuth Wasan Awin; Abhijeet Lale; Kollamala Chellappan Nair Hari Kumar; Umit Bilge Demirci; Samuel Bernard; Ravi Kumar
Journal:  Materials (Basel)       Date:  2018-03-01       Impact factor: 3.623

4.  In-Situ Synthesis and Characterization of Nanocomposites in the Si-Ti-N and Si-Ti-C Systems.

Authors:  Maxime Balestrat; Abhijeet Lale; André Vinícius Andrade Bezerra; Vanessa Proust; Eranezhuth Wasan Awin; Ricardo Antonio Francisco Machado; Pierre Carles; Ravi Kumar; Christel Gervais; Samuel Bernard
Journal:  Molecules       Date:  2020-11-10       Impact factor: 4.411

5.  Design of nanoscaled heterojunctions in precursor-derived t-ZrO2/SiOC(N) nanocomposites: Transgressing the boundaries of catalytic activity from UV to visible light.

Authors:  Shakthipriya Bhaskar; Eranezhuth Wasan Awin; K C Hari Kumar; Abhijeet Lale; Samuel Bernard; Ravi Kumar
Journal:  Sci Rep       Date:  2020-01-16       Impact factor: 4.379
  5 in total

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