rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Evaluation of ALON for cannon window application
  name:
    name part: Beyer, Richard A. (Richard Anthony)
    role:
      role term: creator
  name:
    name part: Kerwien, Henry.
  name:
    name part: U.S. Army Research Laboratory
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: mdu
    date issued: 2000
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource (viii, 16 pages) : digital, PDF file.
  abstract: In applying laser ignition to large-caliber cannons, a critical element is the window into the cannon chamber to admit the laser energy. This window must repeatedly withstand a particularly harsh environment of highly reactive, high temperature combustion products from the gun propellant at pressures up to 440 MPa (65,000 psi). Failure of the window can be caused by either thermal gradients in the window, mechanical force, or a combination. Previous successes with single-crystal sapphire have sometimes been limited by window deterioration modes suggestive of crystalline behavior. Samples of aluminum oxynitride spinel (ALON) have been fabricated in the same design as the standard sapphire windows and were qualified for gun testing. This process involves a series of experiments in a closed chamber, where gun propellant is burned to generate an environment similar to that inside the gun. Windows mounted in two methods have been tested. One of these windows has survived the full pregun test series with no visible damage.
  note: Richard A. Beyer, Henry Kerwien.
  note: "October 2000."
  note: Electronic resource.
  note: APPROVED FOR PUBLIC RELEASE.
  note: Includes bibliographical references (page 11).
  subject:
    topic: Ordnance
  subject:
    topic: Lasers
  subject:
    topic: Aluminum compounds
  subject:
    topic: Guns
  subject:
    topic: Firing mechanisms(weapon)
  subject:
    topic: Windows
  subject:
    topic: Blast loads
  subject:
    topic: Spinel
  subject:
    topic: Oxynitrides
  subject:
    topic: Firing tests(ordnance)
  subject:
    topic: Single crystals
  subject:
    topic: Laser beams
  subject:
    topic: Sapphire
  subject:
    topic: Guns
  subject:
    topic: Gun propellants
  subject:
    topic: Ignition systems
  subject:
    topic: Combustion products
  subject:
    topic: CANNONS
  subject:
    topic: ALON(ALUMINUM OXYNITRIDES)
  subject:
    topic: PE62218A
  classification: D 101.133:2358
  related item:
    title info:
      title: Evaluation of ALON for cannon window application
    name:
      name part: Beyer, Richard A. (Richard Anthony).
    physical description:
      extent: viii, 16 p.
    identifier: (OCoLC)681747440
  related item:
    title info:
      title: ARL-TR (Aberdeen Proving Ground, Md.) ; 2358
  identifier: https://purl.fdlp.gov/GPO/gpo2275
  access condition: APPROVED FOR PUBLIC RELEASE.
  record info:
    record content source: DTICE
    record creation date: 080513
    record change date: 20211120160355.0
    record identifier: in00002653096