Preparation and characterization of ZrB2 and TaC containing Cf/SiC composites via Polymer-Infiltration-Pyrolysis process

被引：37

作者：

Uhlmann, Franziska ^{[1
]}

Wilhelmi, Christian ^{[1
]}

Schmidt-Wimmer, Stephan ^{[2
]}

Beyer, Steffen ^{[2
]}

Badini, Claudio ^{[3
]}

Padovano, Elisa ^{[3
]}

机构：

[1] Airbus Def & Space GmbH, D-82024 Taufkirchen, Germany

[2] Airbus Safran Launchers GmbH, D-82024 Taufkirchen, Germany

[3] Politecn Torino, I-10129 Turin, Italy

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2017年 / 37卷 / 05期

关键词：

Ceramic Matrix Composites; Ultra-High Temperature Ceramics; Polymer-Infiltration-Pyrolysis process; Ultra-high temperature properties; Mechanical properties; CERAMIC-MATRIX COMPOSITES; ZRC-SIC MATRIX; FABRICATION; ZIRCONIUM; MICROSTRUCTURE; OXIDATION; BEHAVIOR;

D O I：

10.1016/j.jeurceramsoc.2016.12.048

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：

To improve the thermo-chemical resistance of PIP-C-f/SiC composites, the SiC matrix is modified by adding ZrB2 and Ta powder to the pre-ceramic slurry to form Ct/SiC-ZrB2-TaC composites. Within this study the modified composites are investigated regarding their microstructure, chemical composition and physical properties (density =2,39-2,72 g/cm(3); porosity= 20,3-24,8 vol.-%; fiber volume content =52-57 vol.-%). Mechanical properties are investigated in order to ensure that there is no negative influence by ZrB2 and TaC matrix modification. The matrix modification is followed by an improvement in bending strength (up to 27% increase), Young's modulus (up to 28% increase) and for interlaminar shear strength (up to 22% increase). Finally the thermo-chemical behavior of the Ct/SiC-ZrB2-TaC composites is evaluated in a combustion chamber-like environment using the Airbus Group long-term material test facility (Environmental Relevant Burner Rig-Kerosene, ERBURIGK). The results show that the thermo-chemical resistance of Cf/SiC-ZrB2-TaC composites is improved and the oxygen permeability through the composite is decreased (from 5 to 1 layer).(C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1955 / 1960

页数：6

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