Study of a carbon-ceramic composite material under high-temperature thermal action

2006 ◽  
Vol 79 (4) ◽  
pp. 832-834
Author(s):  
L. I. Guseva ◽  
Yu. D. Khodzhaev ◽  
V. M. Yudin
2020 ◽  
pp. 51-62
Author(s):  
Yu.E. Lebedeva ◽  
◽  
A.N. Afanasev-Hodikin ◽  
G.M. Prokopchenko ◽  
A.A. Shavnev ◽  
...  

The interaction of the SiC–SiCw–B4C–AlN system ceramic composite material (CCM) with the EP648 alloy in the process of high-temperature brazing was studied. The smallest erosion activity both in relation to CCM, and to the EP648 alloy, has HMP solder VPr50. An experimental constructionally similar sample of the nozzle assembly sector was made using uncooled nozzle blade prototypes from CCM. Tests of an experimental constructionally similar sample of the nozzle assembly sector at a temperature of 1500 °C were carried out. No traces of material ablation from the surface of the CMC were found.


2010 ◽  
Vol 51 (4) ◽  
pp. 364-369 ◽  
Author(s):  
D. V. Yartsev ◽  
A. V. Lakhin ◽  
Yu. M. Vol’fkovich ◽  
A. V. Manukhin ◽  
E. A. Bogachev ◽  
...  

Author(s):  
P.V. Prosuntsov ◽  
D.Y. Barinov

Carbon-ceramic composites are considered promising materials to be used in thermal protection shields of innovative descent vehicles that are currently being designed. The development of thermal shield material requires modelling its thermal-phase state under operational conditions. In this paper, physical and mathematical models are proposed for analysis of the destruction and radiation-conductive heat transfer in a porous carbon-ceramic composite material consisting of carbon fibres covered by silicon carbide. The models take into account all main physical and chemical processes of heating up and thermo-chemical destruction. A software package DMA based on the finite element method was developed, and modelling of heating up and destruction of the material was conducted. It was established that when the temperature was above 800 °С, the contribution of the radiation heat exchange became considerable. A comparison of the surface microstructures obtained through modelling and gas-dynamic testing in a plasmatron facility showed their qualitative agreement, while the mass loss did not exceed 16%.


Author(s):  
Т.Н. Антипова ◽  
В.А. Волкова

В статье проанализирован процесс получения углерод-керамического композиционного материала методом пропитки расплавами. Определена номенклатура факторов технологического процесса, влияющих на технические и экономические показатели качества, изготавливаемого углерод-керамического композиционного материала методом пропитки расплавами. Методом экспертных оценок выявлены наиболее значимые факторы в технологическом процессе изготовления углерод-керамического композиционного материала, которые определяют качество продукции. The article discusses the process of obtaining carbon-ceramic composite material by the method of impregnation with melts. The nomenclature of factors of the technological process that affect the technical and economic indicators of the quality of the carbon-ceramic composite material produced by the method of impregnation with melts is determined. By the method of expert evaluations, the most significant factors in the technological process of manufacturing a carbon-ceramic composite material that determine the quality of products are identified.


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