Investigation of isolated chemical vapour deposited diamonds using STIM tomography

Conference · Mon Jun 01 04:00:00 EDT 1992

OSTI ID:6134190

Stuart, S A ^[1]; Cholewa, M; Saint, A; Prawer, S; Legge, G J.F. ^[2]; Weirup, D ^[3]

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1. Royal Melbourne Inst. of Tech., VIC (Australia). Dept. of Applied Physics
2. Melbourne Univ., Parkville, VIC (Australia). Micro Analytical Research Centre
3. Lawrence Livermore National Lab., CA (United States)

In order to understand the growth mechanisms of chemical vapour deposited (CVD) diamonds, and ultimately improve the quality of CVD diamond films, isolated crystals rather than polycrystaline films should be studied. In polycrystalline film, grain boundaries, overgrowth and secondary nucleation are sources of defects and non-diamond components, which reduce the quality of the films and hence drastically limit the commercial applications. Isolated diamond crystals were grown on the end of tungsten wire tips by Microwave Plasma CVD. In an attempt to study the nature of growth of crystals, STIM (Scanning Transmission Ion Microscopy) Tomography was used to map density variations within the formed diamond particles.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: DOE; ARC; USDOE, Washington, DC (United States); Australian Research Council, Canberra, ACT (Australia)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6134190
• Report Number(s): UCRL-JC-109619; CONF-9206201--5; ON: DE93015108
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
CARBON
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
DENSITY
DEPOSITION
DIAGNOSTIC TECHNIQUES
DIAMONDS
ELECTROMAGNETIC RADIATION
ELEMENTAL MINERALS
ELEMENTS
ION MICROSCOPY
MICROSCOPY
MICROWAVE RADIATION
MINERALS
NONMETALS
PARTICLES
PHYSICAL PROPERTIES
RADIATIONS
SURFACE COATING
TOMOGRAPHY