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Re: Star Trek IV Was A Documentary!

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  • Gabriel
    Transparent aluminum??? Actually, even at the time it didn t seem too far fetched to me considering that there are crystal glasses made with lead. I believe
    Message 1 of 2 , Nov 1, 2005
      "Transparent aluminum???"

      Actually, even at the time it didn't seem too far fetched to me
      considering that there are crystal glasses made with lead. I believe
      anything can be crystallyzed somehow and become transparent. It is a
      matter of aligning them just right to allow photons through.

      But this is soooo cool!

      --- In starfleetblueprintarchive@yahoogroups.com, Patrick Power
      <da_fringe_element@y...> wrote:
      > Air Force testing new transparent armor
      > by Laura Lundin
      > Air Force Research Laboratory Public Affairs
      > 10/17/2005 - WRIGHT-PATTERSON AIR FORCE BASE, Ohio
      > (AFPN) -- Engineers here are testing a new kind of
      > transparent armor -- stronger and lighter than
      > traditional materials -- that could stop
      > armor-piercing weapons from penetrating vehicle
      > windows.
      > The Air Force Research Laboratory's materials and
      > manufacturing directorate is testing aluminum
      > oxynitride -- ALONtm -- as a replacement for the
      > traditional multi-layered glass transparencies now
      > used in existing ground and air armored vehicles.
      > The test is being done in conjunction with the Army
      > Research Laboratory at Aberdeen Proving Grounds, Md.,
      > and University of Dayton Research Institute, Ohio.
      > ALONtm is a ceramic compound with a high compressive
      > strength and durability. When polished, it is the
      > premier transparent armor for use in armored vehicles,
      > said. 1st Lt. Joseph La Monica, transparent armor
      > sub-direction lead
      > "The substance itself is light years ahead of glass,"
      > he said, adding that it offers "higher performance and
      > lighter weight."
      > Traditional transparent armor is thick layers of
      > bonded glass. The new armor combines the transparent
      > ALONtm piece as a strike plate, a middle section of
      > glass and a polymer backing. Each layer is visibly
      > thinner than the traditional layers.
      > ALONtm is virtually scratch resistant, offers
      > substantial impact resistance, and provides better
      > durability and protection against armor piercing
      > threats, at roughly half the weight and half the
      > thickness of traditional glass transparent armor, said
      > the lieutenant.
      > In a June 2004demonstration, an ALONtm test pieces
      > held up to both a .30 caliber Russian M-44 sniper
      > rifle and a .50 caliber Browning Sniper Rifle with
      > armor piercing bullets. While the bullets pierced the
      > glass samples, the armor withstood the impact with no
      > penetration.
      > In extensive testing, ALONtm has performed well
      > against multiple hits of .30 caliber armor piercing
      > rounds -- typical of anti-aircraft fire, Lieutenant La
      > Monica said. Tests focusing on multiple hits from .50
      > caliber rounds and improvised explosive devices are in
      > the works.
      > The lieutenant is optimistic about the results because
      > the physical properties and design of the material are
      > intended to stop higher level threats.
      > "The higher the threat, the more savings you're going
      > to get," he said. "With glass, to get the protection
      > against higher threats, you have to keep building
      > layers upon layers. But with ALONtm, the material only
      > needs to be increased a few millimeters."
      > This ability to add the needed protection with only a
      > small amount of material is very advantageous, said
      > Ron Hoffman, an investigator at University of Dayton
      > Research Institute.
      > "When looking at higher level threats, you want the
      > protection, not the weight," Mr. Hoffman said.
      > "Achieving protection at lighter weights will allow
      > the armor to be more easily integrated into vehicles."
      > Mr. Hoffman also pointed out the benefit of durability
      > with ALONtm.
      > "Eventually, with a conventional glass surface,
      > degradation takes place and results in a loss of
      > transparency," Mr. Hoffman said. "Things such as sand
      > have little or no impact on ALONtm, and it probably
      > has a life expectancy many times that of glass."
      > The scratch-resistant quality will greatly increase
      > the transparency of the armor, giving military members
      > more visual awareness on the battlefield.
      > "It all comes down to survivability and being able to
      > see what's out there and to make decisions while
      > having the added protection," Mr. Hoffman said.
      > The Army is looking to use the new armor as windows in
      > ground vehicles, like the Humvee, Lieutenant La Monica
      > said. The Air Force is exploring its use for
      > "in-flight protective transparencies for low,
      > slow-flying aircraft. These include the C-130
      > Hercules, C-17 Globemaster III, A-10 Thunderbolt II
      > and helicopters.
      > While some see the possibilities of this material as
      > limitless, manufacturability, size and cost are issues
      > the lab is dealing with before the armor can
      > transition to the field, the lieutenant said.
      > "Traditional transparent armor costs a little over $3
      > per square inch. The ALONtm Transparent Armor cost is
      > $10 to $15 per square inch," Lieutenant La Monica
      > said. "The difficulties arise with heating and
      > polishing processes, which lead to higher costs. But
      > we are looking at more cost effective alternatives."
      > Lieutenant La Monica said experimenting with the
      > polishing process has proven beneficial.
      > "We found that by polishing it a certain way, we
      > increased the strength of the material by two-fold,"
      > he said.
      > Currently, size is also limited because equipment
      > needed to heat larger pieces is expensive. To help
      > lower costs, the lieutenant said researchers are
      > looking at design variations that use smaller pieces
      > of the armor tiled together to form larger windows.
      > Lowering cost by using a commercial grade material is
      > also an option, and the results have been promising.
      > "So far, the difference between the lower-grade
      > material and higher purity in ballistic tests is
      > minimal," he said.
      > Lieutenant La Monica said once the material can be
      > manufactured in large quantities to meet the
      > military's needs, and the cost brought down, the
      > durability and strength of ALONtm will prove
      > beneficial to the warfighter.
      > "It might cost more in the beginning, but it is going
      > to cost less in the long run because you are going to
      > have to replace it less," he said.
      > (Courtesy of Air Force Materiel Command News Service)
      > http://www.af.mil/news/story.asp?id=123012131
      > Originally found on the Area 504 Yahoo Group
      > Patrick Power
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