Article | REF: NM3150 V1

Pyrolytic carbons or pyrocarbons: multi-scale, multi-performance materials

Authors: Gérard L. VIGNOLES, Patrick WEISBECKER, Jean-Marc LEYSSALE, Stéphane JOUANNIGOT, Georges CHOLLON

Publication date: April 10, 2015

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9. Glossary – definitions

CVD/DCPV; Chemical Vapor Deposition.

A process for producing solids by gas-solid reaction using a precursor gas and a solid substrate at a sufficiently high temperature. The many variants of CVD include :

  • PECVD: Plasma-Enhanced CVD; the gas phase is replaced by a plasma phase, which greatly reduces the working temperature;

  • LCVD: Laser-CVD; the energy input is localized by the laser, making it possible to localize deposits for rapid prototyping (3D printing), for example;

  • FBCVD: Fluidized-Bed CVD: the substrate is a powder, stirred by circulating gas to prevent agglomeration;

  • CVI: Chemical Vapor Infiltration; the substrate is porous, and deposition takes place at depth in this pore space;

  • ...

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