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Title: Model of evolution of surface grain structure under ion bombardment

Diffusion and chemical reactions in multicomponent systems play an important role in numerous technology applications. For example, surface treatment of materials and coatings by particle beam leads to chemical composition and grain structure change. To investigate the thermal-diffusion and chemical processes affecting the evolution of surface structure, the mathematical modeling is efficient addition to experiment. In this paper two-dimensional model is discussed to describe the evolution of titanium nitride coating on the iron substrate under implantation of boron and carbon. The equation for diffusion fluxes and reaction rate are obtained using Gibbs energy expansion into series with respect to concentration and their gradients.
Authors:
 [1] ;  [2] ;  [2] ;  [1]
  1. Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
22390413
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1623; Journal Issue: 1; Conference: International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk (Russian Federation), 3-5 Sep 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BORON; CARBON; CHEMICAL COMPOSITION; COATINGS; CONCENTRATION RATIO; ION BEAMS; IRON; MATHEMATICAL MODELS; PARTICLE BEAMS; SUBSTRATES; SURFACE TREATMENTS; SURFACES; THERMAL DIFFUSION; TITANIUM NITRIDES; TWO-DIMENSIONAL CALCULATIONS