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The influence of the Al deposition by MOC-CVD method on stainless steel thermal conductivity depending on the substrate roughness

C.A. ŢUGUI1, C. NEJNERU1, D. G. GĂLUŞCĂ1, M. C. PERJU1, M. AXINTE1,* , N. CIMPOEŞU1, P. VIZUREANU1

Affiliation

  1. "Gheorghe Asachi" Technical University of Iasi, Romania

Abstract

This paper studies the influence deposition of aluminum pellicular layers partially compact, by MOC-CVD method on stainless steel, in order to improve the nitriding capacity of these materials. The study was done for alloys used in aerospace construction (motion elements), which must withstand large temperature variations (must have a low expansion coefficient), able to withstand the corrosion and wear. Deposition was performed on samples of base material with different roughness, resulting different Al layer thickness, therefore different conductivities. Depending on the material conductivity they behave differently to thermochemical plasma treatment, meaning ion nitriding..

Keywords

Thermal conductivity, Roughness, MOC-CVD, Plasma Nitriding, Pellicular layers.

Submitted at: April 4, 2015
Accepted at: Oct. 28, 2015

Citation

C.A. ŢUGUI, C. NEJNERU, D. G. GĂLUŞCĂ, M. C. PERJU, M. AXINTE, N. CIMPOEŞU, P. VIZUREANU, The influence of the Al deposition by MOC-CVD method on stainless steel thermal conductivity depending on the substrate roughness, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 11-12, pp. 1855-1861 (2015)