Published April 2009 | Version v1
Journal article Metadata-only

HPHT Synthesis of Different Shape Coarse-Grain Diamond Single Crystals

Creators

  • 1. Institute of Material Science and Engineering Henan Polytechnic University, Jiaozuo 454000 (China)
  • 2. National Laboratory of Super Hard Materials, Jilin University, Changchun 130012 (China)

Description

Synthesis of coarse-grain diamond crystals is studied in a China-type SPD6×1670T cubic high-pressure apparatus with high exact control system. To synthesize high quality coarse-grain diamond crystals, advanced indirect heat assembly, powder catalyst technology and optimized synthesis craft are used. At last, three kinds of coarsegrain diamond (about 0.85 mm) single crystals with hexahedron, hex-octahedron and octahedron are synthesized successfully under HPHT (about 5.4 GPa, 1300–1450°C). The growth characters of different shape crystals are discussed. The results and techniques might be useful for the production of coarse-grain diamonds

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/26/4/048102

Additional details

Identifiers

DOI
10.1088/0256-307X/26/4/048102;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
26
Journal Issue
4
Journal Page Range
[4 p.]
ISSN
0256-307X
CODEN
CPLEEU

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44124490
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CATALYSTS; CONTROL SYSTEMS; CRYSTAL GROWTH; DIAMONDS; MONOCRYSTALS; POWDERS; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; SHAPE; SYNTHESIS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K
Descriptors DEC
CARBON; CRYSTALS; ELEMENTS; MINERALS; NONMETALS; PRESSURE RANGE; TEMPERATURE RANGE