ZrB2-SiC Coatings Prepared by Vapor and Liquid Silicon Infiltration Methods: Microstructure and Oxidation Resistance Property

In this article, tire tread rubber material is analyzed. An experiment is designed to investigate the oxidation resistance property of the material. The micro-morphology is studied by using SEM and the amount change of chemical elements in the material is investigated by EDS. The hardness, permanent deformation and modulus are tested on the aged specimens. At last, rough analysis for these changes influence in tire performance are done correspondingly. The results show that the modules, hardness, compression permanent deformation have great changes, the microscope show that there are micro cracks in the aged rubber material, the elements also have great changes. And the analysis shows that the tread rubber oxidation has a great influence on tire performance.

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The Application of Sic Coatings by CVD to Large CC Composite Parts for Enhanced Oxidation Resistance

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10 - Ceramic Engineering and Science Proceedings ◽

10.1002/9780470314234.ch17 ◽

2008 ◽

pp. 832-839

Author(s):

P. E. Grayson ◽

N. J. Archer

Keyword(s):

Oxidation Resistance ◽

Enhanced Oxidation ◽

Sic Coatings

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Oxidation of nanocrystalline Mo–Si–N and nanolayered Mo–Si–N/SiC coatings

Journal of Materials Research ◽

10.1557/jmr.1999.0481 ◽

1999 ◽

Vol 14 (9) ◽

pp. 3552-3558 ◽

Cited By ~ 2

Author(s):

P. Torri

Keyword(s):

Activation Energy ◽

Water Vapor ◽

Oxidation Resistance ◽

Rate Constant ◽

Arrhenius Plot ◽

Single Layer ◽

Water Vapor Atmosphere ◽

Oxidation Properties ◽

Sputter Deposited ◽

Sic Coatings

Oxidation of sputter-deposited nanocrystalline Mo–Si–N (MoSi2.2N2.5) coatings in oxygen–water vapor atmosphere has been studied in the temperature range 400–850 °C. In addition, the oxidation properties of nanolayered Mo–Si–N/SiC coatings at 700 °C were studied and compared to those of single-layer coatings of both components. No pest disintegration was observed in Mo–Si–N up to 200 h of oxidation. A preexponential rate constant of (3.7 ± 0.5) × 109 (1015 atoms/cm2)2/h and activation energy 1.03 ± 0.02 eV were determined from an Arrhenius plot for parabolic oxygen buildup on Mo–Si–N. Up to 20% less oxygen was detected in the oxidized nanolayered coatings compared to either of the components as a single layer, indicating an improvement in oxidation resistance.

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