Thermodynamic analysis on the chemical vapor deposition process of Ta-C-H-Cl system
Carbon/carbon composites (C/C) have been widely studied in the aerospace field because of their excellent thermal shockresistance and specific strength at high temperature. However, they have the problems that is easily oxidized and deterioratedunder atmospheric environment. In order to overcome the...
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| Published in | Journal of ceramic processing research pp. 519 - 524 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
청정에너지연구소
01.12.2018
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1229-9162 2672-152X |
| DOI | 10.36410/jcpr.2018.19.6.519 |
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| Abstract | Carbon/carbon composites (C/C) have been widely studied in the aerospace field because of their excellent thermal shockresistance and specific strength at high temperature. However, they have the problems that is easily oxidized and deterioratedunder atmospheric environment. In order to overcome these shortcomings, the CVD coating of ultra-high-temperatureceramics to C/C has become an important technical issue. In this study, thermodynamic calculations were performed to TaCCVD coating on C/C by FactSage 6.2 program. The Ta-C phase diagrams were constructed with the results of thermodynamiccalculations in the Ta-C-H-Cl system. Based on the Ta-C phase diagram, the experimental conditions were designed to confirmthe deposition of various phases such as TaC single phase, TaC + C and TaC + Ta2C by varying the composition of Ta/C ratio.
The deposited films were found to be in good agreement with the predicted phases. KCI Citation Count: 4 |
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| AbstractList | Carbon/carbon composites (C/C) have been widely studied in the aerospace field because of their excellent thermal shockresistance and specific strength at high temperature. However, they have the problems that is easily oxidized and deterioratedunder atmospheric environment. In order to overcome these shortcomings, the CVD coating of ultra-high-temperatureceramics to C/C has become an important technical issue. In this study, thermodynamic calculations were performed to TaCCVD coating on C/C by FactSage 6.2 program. The Ta-C phase diagrams were constructed with the results of thermodynamiccalculations in the Ta-C-H-Cl system. Based on the Ta-C phase diagram, the experimental conditions were designed to confirmthe deposition of various phases such as TaC single phase, TaC + C and TaC + Ta2C by varying the composition of Ta/C ratio.
The deposited films were found to be in good agreement with the predicted phases. KCI Citation Count: 4 |
| Author | 이형익 김현미 최균 심광보 이정민 |
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| Title | Thermodynamic analysis on the chemical vapor deposition process of Ta-C-H-Cl system |
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