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Title: Fabrication of diamond shells

Abstract

A novel method for fabricating diamond shells is introduced. The fabrication of such shells is a multi-step process, which involves diamond chemical vapor deposition on predetermined mandrels followed by polishing, microfabrication of holes, and removal of the mandrel by an etch process. The resultant shells of the present invention can be configured with a surface roughness at the nanometer level (e.g., on the order of down to about 10 nm RMS) on a mm length scale, and exhibit excellent hardness/strength, and good transparency in the both the infra-red and visible. Specifically, a novel process is disclosed herein, which allows coating of spherical substrates with optical-quality diamond films or nanocrystalline diamond films.

Inventors:
; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1330699
Patent Number(s):
9,481,930
Application Number:
11/584,205
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 2006 Oct 20
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Hamza, Alex V., Biener, Juergen, Wild, Christoph, and Woerner, Eckhard. Fabrication of diamond shells. United States: N. p., 2016. Web.
Hamza, Alex V., Biener, Juergen, Wild, Christoph, & Woerner, Eckhard. Fabrication of diamond shells. United States.
Hamza, Alex V., Biener, Juergen, Wild, Christoph, and Woerner, Eckhard. Tue . "Fabrication of diamond shells". United States. doi:. https://www.osti.gov/servlets/purl/1330699.
@article{osti_1330699,
title = {Fabrication of diamond shells},
author = {Hamza, Alex V. and Biener, Juergen and Wild, Christoph and Woerner, Eckhard},
abstractNote = {A novel method for fabricating diamond shells is introduced. The fabrication of such shells is a multi-step process, which involves diamond chemical vapor deposition on predetermined mandrels followed by polishing, microfabrication of holes, and removal of the mandrel by an etch process. The resultant shells of the present invention can be configured with a surface roughness at the nanometer level (e.g., on the order of down to about 10 nm RMS) on a mm length scale, and exhibit excellent hardness/strength, and good transparency in the both the infra-red and visible. Specifically, a novel process is disclosed herein, which allows coating of spherical substrates with optical-quality diamond films or nanocrystalline diamond films.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 01 00:00:00 EDT 2016},
month = {Tue Nov 01 00:00:00 EDT 2016}
}

Patent:

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Works referenced in this record:

Growth of diamond films on spherical surfaces by hot filament CVD
journal, February 1998