2007
DOI: 10.1117/12.719312
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Nanocomposite optical ceramics for infrared windows and domes

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Cited by 32 publications
(25 citation statements)
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“…The immiscible characteristic of the two phases helps to limit grain growth by phase boundary impingement 19 during sol–gel powder synthesis and sintering. Reducing the phase domain size is critical in minimizing the light scattering and empirical evidence shows that limiting the phase domain size of the nanocomposite to approximately 1/15th of the wavelength of light is sufficient to limit scattering 7 …”
Section: Resultsmentioning
confidence: 99%
“…The immiscible characteristic of the two phases helps to limit grain growth by phase boundary impingement 19 during sol–gel powder synthesis and sintering. Reducing the phase domain size is critical in minimizing the light scattering and empirical evidence shows that limiting the phase domain size of the nanocomposite to approximately 1/15th of the wavelength of light is sufficient to limit scattering 7 …”
Section: Resultsmentioning
confidence: 99%
“…It was first reported that a Y 2 O 3 -MgO composite with a grain size of about 400nm showing relatively good infrared transmission 8 . There was a breakthrough in developing Y 2 O 3 -MgO nanocomposite that exhibits up to 80% transmittance in about 3-7µm wavelength range 9 . In this paper, nanocomposite Y 2 O 3 -MgO powder was synthesized using sol-gel method.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, increased strength and improved erosion resistance can also be achieved . Y 2 O 3 –MgO nanocomposite was recently reported to have excellent mid‐infrared transmittance over 3–7 μm wavelength ranges with improved mechanical properties over that of pure yttria and magnesia polycrystalline dense ceramics . In order to protect infrared windows from harsher mechanical and thermal environments and to replace currently used single crystal materials, such as sapphire, a further improvement of the mechanical properties of the ceramic nanocomposites is required.…”
Section: Introductionmentioning
confidence: 99%