High-Frequency Microwave Processing of Materials Laboratory

Metadata Updated: March 8, 2017

FUNCTION: Conducts research on high-frequency microwave processing of materials using a highpower, continuous-wave (CW), 83-GHz, quasi-optical beam system for rapid, selective sintering, heat treatment, modification, coating, and joining of ceramics and metals, and production of nanocrystalline metals and ceramics.DESCRIPTION: A free-space-propagating, quasi-optical beam of intense polarized millimeter-wave radiation is produced by an 83-GHz, 15-kW, CW industrial gyrotron and injected into a sealed processing chamber (1.5 m long [HTML_REMOVED] 1.2 m high [HTML_REMOVED] 0.9 m wide) where it is focused onto the workpiece. Beam intensities up to 10 kW/cm 2 can be achieved, the beam power is variable up to 15 kW, and the pulse length is variable from 1 s to CW operation. Minimum spot size (0.5 cm), area illumination (20 [HTML_REMOVED] 20 cm), and strip illumination (0.5 [HTML_REMOVED] 20 cm) of the workpiece can be achieved using focusing mirrors. Various processing atmospheres can be used and workpieces can be heated rapidly to temperatures exceeding 2000 [HTML_REMOVED]C.INSTRUMENTATION: The Gycom Ltd. 15 kW gyrotron and associated dc power supply and cryogen-free, superconducting 3 T magnet are controlled and monitored by a LabVIEW[HTML_REMOVED] PC-based system that acquires and analyzes a wide range of instrumentation output and includes a large number of safety interlocks. Workpiece temperature diagnostics include single- and two-color pyrometers, and up to eight K- and S-type thermocouples. Processes can be monitored in real time and recorded via a video camera within the processing chamber.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date March 8, 2017
Metadata Updated Date March 8, 2017

Metadata Source

Harvested from Federal Laboratory Consortium Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date March 8, 2017
Metadata Updated Date March 8, 2017
Publisher Federal Laboratory Consortium
Unique Identifier 8E76CDF6-C664-4739-B277-4997B9BCBD14
Maintainer
Maintainer Email
None
Public Access Level public
Address1 4555 Overlook Avenue S.W.
Address2
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Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Expertise
Fax
Flcbusinessurl https://flcbusiness.federallabs.org/#/laboratory/3340
Harvest Object Id 9c52ee50-f4fb-4544-a262-260df710e494
Harvest Source Id 5859cfed-553c-48de-a478-b67b5225f6fc
Harvest Source Title Federal Laboratory Consortium Data.json
Mission
Owneroperatorcode
Phone 202-767-3083
Postalcode 20375
Repphone (202) 767-2469
Sizesqft 0
Source Datajson Identifier True
Source Hash b99438d437065ffa040e896d609a57a534f2ab3b
Source Schema Version 1.1
Statecode DC
T2Website

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