|Table of Contents|

Effect of water vapor and oxygen corrosion environment on thermal diffusivity of 2D C/SiC composites(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2017年04期
Page:
23-28
Research Field:
研究与设计
Publishing date:

Info

Title:
Effect of water vapor and oxygen corrosion environment on thermal diffusivity of 2D C/SiC composites
Author(s):
WANG Fuyuan;  YANG Xiaohui;  WANG Yi;  BAI Longteng
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
C/SiC;  thermal diffusion;  environmental corrosion;  microstructure evolution
PACS:
V250.3-34
DOI:
-
Abstract:
The effect of environmental corrosion on thermal diffusivity of 2D C/SiC composites is investigated by the microstructural evolution of water vapor and oxygen corrosion under the conditions of different temperatures. In the water vapor and oxygen mixture environment, the porosity increases and the oxide forms in the composites. The pores inside the composites interrupts the heat flow transmission, which results in almost linear reduction of thermal diffusivity of composites. The oxide forming at high corrosion temperature fills up the matrix cracks, which is conducive to thermal transmission and can improve the thermal diffusivity in the composites.

References:

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Last Update: 1900-01-01