Evidence for hydrothermal growth of diamond in the C-H-O and C-H-O halogen system

被引：23
作者：
Roy, R
Ravichandran, D
Ravindranathan, P
Badzian, A
机构：
[1] Materials Research Laboratory, Pennsylvania State University, University Park
来源：
JOURNAL OF MATERIALS RESEARCH | 1996年 / 11卷 / 05期
关键词：
D O I：
10.1557/JMR.1996.0150
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Powder x-ray diffraction (XRD) and Raman evidence are presented for the formation of crystalline diamond in the ''hydrothermal'' pressure-temperature regime 1-5 kbars, < 1000 degrees C. Two different methods appear to enable diamond to nucleate and grow. One-a Low Pressure Solid-State Source (LPSSS) route-utilizes special solid precursors, especially low temperature glassy carbon (GC-500), with very fine diamond seeds in sealed gold capsules with H2O at, say, 800 degrees C and 1 kbar. The other includes pyrolysis of highly selected organic solid/liquid precursors (halogenated aliphatics such as iodoform) onto similar diamond seeds. Tn all the cases, powder x-ray diffraction evidence shows a marked increase of the diamond XRD peaks, likewise the Raman spectrum shows a strong increase of the 1331 cm(-1) line. However, the crystals apparently are too small to be seen in the SEM. TEM diffraction data, on the other hand, seem to lend support to the possibility of all the grown diamonds being very small.
引用
收藏
页码：1164 / 1168
页数：5
相关论文
共 50 条
[21]   Design of Multiperiod C-H-O Symbiosis Networks [J].
Al-Fadhli, Fahad M. ;
Mukherjee, Rajib ;
Wang, Wan ;
El-Halwagi, Mahmoud M. .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2018, 6 (07) :9130-9136
[22]   THE CHEMICAL BASIS OF THE C-H-O PHASE-DIAGRAM IN DIAMOND PLASMA DEPOSITIONS [J].
PINTER, I ;
TEBANO, A ;
PAOLETTI, A ;
PAROLI, P .
DIAMOND AND RELATED MATERIALS, 1994, 3 (1-2) :126-128
[23]   Calculation of diamond chemical vapor deposition region in C-H-O phase diagram [J].
Rakov, EG .
APPLIED PHYSICS LETTERS, 1996, 69 (16) :2370-2372
[24]   Calculation of Diamond Deposition Fields in the Phase Diagrams of the C-H-O, C-H-O-F, and C-S-F Systems [J].
Rakov, E. G. .
1996, (349) :1-3
[25]   PT facies of elementary, hydrocarbon, and organic substances in the C-H-O system [J].
A. A. Marakushev ;
S. A. Marakushev .
Doklady Earth Sciences, 2006, 406 :141-147
[26]   Novel Stable Compounds in the C-H-O Ternary System at High Pressure [J].
Gabriele Saleh ;
Artem R. Oganov .
Scientific Reports, 6
[27]   Calculation of diamond depositions region in phase diagrams of systems C-H-O, C-H-O-F and C-S-F [J].
Rakov, EG .
DOKLADY AKADEMII NAUK, 1996, 349 (03) :350-353
[28]   PT facies of elementary, hydrocarbon, and organic substances in the C-H-O system [J].
Marakushev, AA ;
Marakushev, SA .
DOKLADY EARTH SCIENCES, 2006, 406 (01) :141-147
[29]   FLUID MIXTURES IN THE C-H-O SYSTEM AT HIGH-PRESSURE AND TEMPERATURE [J].
SAXENA, SK ;
FEI, Y .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1988, 52 (02) :505-512
[30]   DETERMINATION OF REDUCING PROPERTIES OF C-H-O SYSTEM AT HIGH-TEMPERATURE [J].
AMOUROUX, J ;
CODRON, JL ;
MORVAN, D .
ANNALES DE CHIMIE FRANCE, 1978, 3 (01) :59-79
12345