scholarly journals Ultra-high Temperature Ceramics-Ceramic Matrix Composites (UHTC-CMC)

2017 ◽  
Vol 30 (2) ◽  
pp. 94-101
Author(s):  
Sea-Hoon Lee ◽  
Feng Lun ◽  
Kyeongwoon Chung
Keyword(s):  
High Temperature ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Matrix Composites ◽  
Ultra High Temperature Ceramics ◽  
Ultra High Temperature

scholarly journals Ultra-High-Temperature Ceramic Matrix Composites in Hybrid Rocket Propulsion Environment

2018 ◽  
Author(s):  
Stefano Mungiguerra ◽  
Giuseppe D. Di Martino ◽  
Raffaele Savino ◽  
Luca Zoli ◽  
Diletta Sciti ◽  
...  
Keyword(s):  
High Temperature ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Matrix Composites ◽  
Hybrid Rocket ◽  
Rocket Propulsion ◽  
Ultra High Temperature

Preparation and Properties of 2D Carbon Cloth Reinforced Ultra-High Temperature Ceramic Matrix Composites

2008 ◽  
Vol 368-372 ◽  
pp. 1050-1052 ◽  
Author(s):  
Yong Lian Zhou ◽  
Hai Feng Hu ◽  
Yu Di Zhang ◽  
Qi Kun Wang ◽  
Chang Rui Zhang
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Carbon Cloth ◽  
Matrix Composites ◽  
Pyrolysis Process ◽  
Sic Composites ◽  
Polymer Infiltration ◽  
Ultra High Temperature

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).

scholarly journals Cyclic oxidation behaviour of ZrB2 -20 vol.%MoSi2 based ultra-high temperature ceramic matrix composite between 1100°C and 1300°C

2021 ◽  
Author(s):  
Mainak Saha
Keyword(s):  
High Temperature ◽  
Cyclic Oxidation ◽  
Ceramic Matrix Composite ◽  
Oxidation Kinetic ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Oxidation Behaviour ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
Ultra High Temperature

While descending through different layers of atmosphere with tremendously high velocities, hypersonic re-entry nosecones fabricated using ultra-high temperature ceramic matrix composites (UHTCMCs) are subjected to repeated thermal shocks. This necessitates extensive investigations on the cyclic oxidation behaviour of UHTCMCs at temperatures ranging from 1100°C to 1300°C (service temperature of the nosecones). To this end, the present work is aimed at investigating the cyclic oxidation behaviour of ZrB2 -20 vol.%MoSi2 (ZM20) UHTCMC (a very widely investigated ZM CMC) by carrying out cycles for 6h, at 1cycle/h and estimating oxidation kinetic law. This has been followed by extensive characterisation using X-Ray Diffraction (XRD) to indicate the phases formed during oxidation and Scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), in order to determine the chemical composition of the oxides formed between 1100°C and 1300°C.

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