Method and apparatus for radio frequency ceramic sintering
Abstract
Radio frequency energy is used to sinter ceramic materials. A coaxial waveguide resonator produces a TEM mode wave which generates a high field capacitive region in which a sample of the ceramic material is located. Frequency of the power source is kept in the range of radio frequency, and preferably between 60-80 MHz. An alternative embodiment provides a tunable radio frequency circuit which includes a series input capacitor and a parallel capacitor, with the sintered ceramic connected by an inductive lead. This arrangement permits matching of impedance over a wide range of dielectric constants, ceramic volumes, and loss tangents. 6 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5294496
- Patent Number(s):
- 5266762
- Application Number:
- PPN: US 7-971204
- Assignee:
- Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 4 Nov 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; CERAMICS; SINTERING; RF SYSTEMS; DESIGN; RESONATORS; ELECTRONIC EQUIPMENT; EQUIPMENT; FABRICATION; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication
Citation Formats
Hoffman, D J, and Kimrey, Jr, H D. Method and apparatus for radio frequency ceramic sintering. United States: N. p., 1993.
Web.
Hoffman, D J, & Kimrey, Jr, H D. Method and apparatus for radio frequency ceramic sintering. United States.
Hoffman, D J, and Kimrey, Jr, H D. Tue .
"Method and apparatus for radio frequency ceramic sintering". United States.
@article{osti_5294496,
title = {Method and apparatus for radio frequency ceramic sintering},
author = {Hoffman, D J and Kimrey, Jr, H D},
abstractNote = {Radio frequency energy is used to sinter ceramic materials. A coaxial waveguide resonator produces a TEM mode wave which generates a high field capacitive region in which a sample of the ceramic material is located. Frequency of the power source is kept in the range of radio frequency, and preferably between 60-80 MHz. An alternative embodiment provides a tunable radio frequency circuit which includes a series input capacitor and a parallel capacitor, with the sintered ceramic connected by an inductive lead. This arrangement permits matching of impedance over a wide range of dielectric constants, ceramic volumes, and loss tangents. 6 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {11}
}
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