2002 Fiscal Year Final Research Report Summary
Synthesis and Investigation of Reaction Mechanism for Carbon Nitride Having Diamond-like Properties
| Project/Area Number |
11650865
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
無機工業化学
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| Research Institution | Osaka Electro-Communication University |
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Principal Investigator |
KAWAGUCHI Masayuki Osaka Electro-Communication University, Department of Materials Science, Professor, 工学部, 教授 (10268295)
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| Project Period (FY) |
1999 – 2002
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| Keywords | Carbon Nitride / Chemical Vapor Reaction / Heat-treatment / Hardness / Photoluminescence |
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| Research Abstract |
Since carbon nitride β-C_3-N_4 was predicted to be as hard as diamond, many efforts have been made to prepare the carbon nitride. Particularly, physical methods have been used for the preparation, such as pulsed laser ablation. However, there are not so many attempts to prepare β-C_3-N_4 by chemical method. We have prepared materials containing carbon and nitrogen as main components on the basis of the reaction mechanism which we have investigated in this research.
Creamy white powders were obtained by the chemical vapor deposition of carbon tetrachloride and ammonia at 1000℃, followed by washing with boiled water. The composition of the material was C_3N_<5.1>O_<0.4>H_<4.0>, which was determined by usual combustion method and was similar to that of hypothetical hard material C_3N_4. The powders were harder than quartz whose Mohs hardness is 7. The hardness could be explained by the C-N single bond observed in the ESCA C_<1s> spectrum.
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