Aerothermal behaviour of a SiC fibre-reinforced ZrB2 sharp component in supersonic regime

被引：46

作者：

Sciti, Diletta ^{[1
]}

Savino, Raffaele ^{[2
]}

Silvestroni, Laura ^{[1
]}

机构：

[1] CNR ISTEC, Inst Sci & Technol Ceram, I-48018 Faenza, Italy

[2] Univ Naples Federico II, Dept Aerosp Engn, I-80125 Naples, Italy

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2012年 / 32卷 / 08期

关键词：

ZrB2; SiC fibre; Arc-jet; Atmospheric re-entry; Oxidation; ZRB2-BASED CERAMICS; OXIDATION; STABILITY; NICALON; HFB2; COMPOSITES;

D O I：

10.1016/j.jeurceramsoc.2012.01.019

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The aerothermal behaviour of a SiC fibre-reinforced ZrB2 composite machined in a sharp-shaped component with a tip curvature radius of 0.1 mm was investigated using an arc-jet facility. The specimen underwent 4 thermal cycles and the emissivity was evaluated in the temperature range 1000-1700 degrees C. The temperature profile along the specimen was calculated through computational fluid dynamic (CFD) modelling. The microstructural evolution was compared to a typical ZrB2 composite containing the same amount of SiC in particulate form, which underwent similar aerodynamic conditions. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1837 / 1845

页数：9

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