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Title: Double bevel construction of a diamond anvil

Abstract

A double or multiple bevel culet geometry is used on a diamond anvil in a high pressure cell apparatus to provide increased sample pressure and stability for a given force applied to the diamond tables. Double or multiple bevel culet geometries can also be used for sapphire or other hard crystal anvils. Pressures up to and above 5 Megabars can be reached. 8 figs.

Inventors:
Publication Date:
OSTI Identifier:
7020448
Patent Number(s):
US 4776223; A
Application Number:
PPN: US 7-011977
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-116956
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 6 Feb 1987
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DIAMONDS; CUTTING; FABRICATION; GEOMETRY; PRESSURE DEPENDENCE; CARBON; ELEMENTAL MINERALS; ELEMENTS; MACHINING; MATHEMATICS; MINERALS; NONMETALS; 360601* - Other Materials- Preparation & Manufacture

Citation Formats

Moss, W.C.. Double bevel construction of a diamond anvil. United States: N. p., 1988. Web.
Moss, W.C.. Double bevel construction of a diamond anvil. United States.
Moss, W.C.. 1988. "Double bevel construction of a diamond anvil". United States. doi:.
@article{osti_7020448,
title = {Double bevel construction of a diamond anvil},
author = {Moss, W.C.},
abstractNote = {A double or multiple bevel culet geometry is used on a diamond anvil in a high pressure cell apparatus to provide increased sample pressure and stability for a given force applied to the diamond tables. Double or multiple bevel culet geometries can also be used for sapphire or other hard crystal anvils. Pressures up to and above 5 Megabars can be reached. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1988,
month =
}
  • Use of double or multiple bevel culet geometry on a diamond anvil to provide increased sample pressure and stability for a given force applied to the diamond tables. 7 figs.
  • A double or multiple bevel culet geometry is used on a diamond anvil in a high pressure cell apparatus to provide increased sample pressure and stability for a given force applied to the diamond tables. Double or multiple bevel culet geometries can also be used for sapphire or other hard crystal anvils. Pressures up to and above 5 Megabars can be reached.
  • Diamond anvil cell is described for spectroscopic investigation of materials at high temperature, high pressure and shear. A cell is described which, in combination with Fourier transform IR spectroscopy, permits the spectroscopic investigation of boundary layers under conditions of high temperature, high pressure and shear. 4 figs.
  • An adjustable X-ray collimation system for a diamond-anvil high-pressure cell of the type including a cooperable piston and cylinder and a pair of opposing diamonds located between the head of the piston and the head of the cylinder. The X-ray collimation system includes a tubular insert which contains an X-ray collimator. The insert is engageable in the bore of the piston. The collimator is mounted within the insert by means of an elastomeric O-ring at the end closest the opposed diamonds, and by means of a set of adjustable set screws at the opposite end. By adjustment of the setmore » screws the collimator can be pivoted about the O-ring and brought into alignment with the opposed diamonds and the sample contained therein. In the preferred embodiment there is further provided a set of plugs which are insertable in the bore of the collimator. The plugs have bores of different diameters. By successively inserting plugs of progressively smaller bore diameters and adjusting the alignment of the collimator with each plug, the collimator can be quickly brought into accurate alignment with the diamonds. The collimation system allows alignment of the collimator either before or after the cell has been loaded and pressurized.« less
  • Diamond anvil cell for spectroscopic investigation of materials at high temperature, high pressure and shear. A cell is described which, in combination with Fourier transform IR spectroscopy, permits the spectroscopic investigation of boundary layers under conditions of high temperature, high pressure and shear.