A Polymer Infiltration and Pyrolysis (PIP) Process Model for Ceramic Matrix Composites (CMCs)

Author(s):  
U. Santhosh ◽  
J. Ahmad ◽  
T. Easler ◽  
Y. Gowayed
2008 ◽  
Vol 368-372 ◽  
pp. 1050-1052 ◽  
Author(s):  
Yong Lian Zhou ◽  
Hai Feng Hu ◽  
Yu Di Zhang ◽  
Qi Kun Wang ◽  
Chang Rui Zhang

In this paper the preparation of carbon fiber reinforced ultra-high temperature ceramic matrix composites was reported. Polymer infiltration and pyrolysis process was used to prepare 2D C/TaC-SiC, C/NbC-SiC, and C/ZrC-SiC composites. The fracture strengths of all the samples were around 300MPa and toughness around 10MPa-m1/2. Standard oxyacetylene torch tests (>3000°C, 30s) showed that the minimum ablative rate of 2D C/SiC-ZrC was as low as 0.026 mm/s, much smaller than that of 2D C/SiC composites (0.088mm/s).


2012 ◽  
Vol 512-515 ◽  
pp. 775-778
Author(s):  
Bin Wu ◽  
Zhen Wang ◽  
Shao Ming Dong

SiC-Si3N4 powders and modified SiC-based ceramic matrix composites (CMCs) were fabricated using polycarbosilane (PCS), divinylbenzene (DVB) and Si3N4 filler. Si3N4 was introduced into CMCs fabricated through polymer infiltration and pyrolysis (PIP) to lower down the carbon content by in-situ carbothermal reaction, which derived from pyrolyzed PCS-DVB. The oxidation resistance and three point bending strength of modified C/SiC composites were effectively enhanced. The phase composition, microstructure of SiC-Si3N4 powders and modified C/SiC composites were investigated by XRD, SEM and TEM.


2006 ◽  
Vol 50 ◽  
pp. 83-90
Author(s):  
G. Stantschev ◽  
Martin Friess ◽  
Walter Krenkel

Ceramic matrix composites (CMCs) were manufactured via polymer infiltration and pyrolysis) PIP process. In order to improve the performance of CMCs as well as to accelerate the manufacturing process, micro-sized powders of Ti are employed as active fillers. To further increase mechanical properties of the CMC, a novel approach is made to strengthen intra-matrix bond by treating the CMC with titanium(IV)-diisopropylate after first PIP processing prior to each PIP cycle.


2020 ◽  
Vol 201 ◽  
pp. 547-560
Author(s):  
Peter J. Creveling ◽  
John Fisher ◽  
Noel LeBaron ◽  
Michael W. Czabaj

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