Effect of LiAl5O8 additions on the sintering and optical transparency of LiAlON

Clay, David Telford; Poslusny, D.; Flinders, Marc; Jacobs, Stephen D.; Cutler, Raymond A.

doi:10.1016/j.jeurceramsoc.2005.01.056

Cited by 33 publications

(16 citation statements)

References 27 publications

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“…Clay et al . reported a transparent LiAlON by using LiAl 5 O 8 (16 wt%) as the sintering additive . The samples were sintered by hot pressing at 1600°C–2000°C and subsequent HIPing at 2000°C under 207 MPa of nitrogen.…”

Section: Transmittance Of (Oxy)nitride Ceramicsmentioning

confidence: 99%

Optical Properties of (Oxy)Nitride Materials: A Review

2013

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(Oxy)nitride materials, consisting mainly of transition metal and ionic‐covalent (oxy)nitrides, show a vast number of interesting physical and chemical properties due to their substantial structural diversity. The optical properties of these (oxy)nitrides, in combination with their excellent mechanical strength, thermal properties, and chemical stability, enable (oxy)nitrides to be used in a variety of industrial fields, such as photovoltaic, photothermal, photocatalytic, pigment, lighting and display, optoelectronic, and defense industries. The optical properties are extremely related to the electronic band structure of (oxy)nitrides, and can be varied significantly by changing the chemical composition (e.g., the oxygen to nitrogen ratio) and preparation/processing conditions. This article overviews the optical properties (including refractive index, reflectance, absorbance, band gap, photoluminescence, and transmittance) of (oxy)nitride materials that are in the form of thin films, powders, or bulk ceramics, and highlights their applications as antireflection coatings, solar spectral selectivity coatings, visible‐light‐driven photocatalysts, ecological pigments, phosphors for light‐emitting diodes, and transparent window materials.

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Section: Transmittance Of (Oxy)nitride Ceramicsmentioning

confidence: 99%

Optical Properties of (Oxy)Nitride Materials: A Review

2013

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“…However, there is great difficulty in sintering of the material. Up to now, most of the transparent AlON are prepared by hot pressing or hot isostatic pressing techniques . The high cost of these techniques limits it from large scale commercial production.…”

Section: Introductionmentioning

confidence: 99%

“…Up to now, most of the transparent AlON are prepared by hot pressing or hot isostatic pressing techniques. [2][3][4][5] The high cost of these techniques limits it from large scale commercial production. Although there are a few reports on the pressureless sintering of transparent AlON, [6][7][8][9] the sintering temperatures are very high, sometimes even up to 2000°C.…”

Section: Introductionmentioning

confidence: 99%

Highly Transparent AlON Pressurelessly Sintered from Powder Synthesized by a Novel Carbothermal Nitridation Method

et al. 2012

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Transparent AlON was pressurelessly sintered from powders synthesized by a two‐step carbothermal nitridation method, using core‐shell structured Al2O3/C mixture derived from the pyrolysis of an Al2O3/ureaformaldehyde‐resin nanocomposite precursor as the starting material. It was found that the amorphous carbon layer on the Al2O3 particle surface could strongly retard the coalescence and growth of Al2O3 particles during the carbothermal nitridation process. As a result, the formation temperature and particle size of the AlON powder were significantly reduced. The AlON powder synthesized showed a bimodal particle size distribution at 0.2 and 0.7 μm and was well dispersed; its maximum particle size was below 0.9 μm. Under the aid of proper sintering additive, transparent AlON ceramics with an average in‐line transmittance above 80% at visible to infrared range were obtained through pressureless sintering.

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“…[60], aluminum magnesium oxynitride [61,45] silicon nitride [62,63] and aluminum nitride [64,65,66,67] have been made translucent to transparent for potential window applications. product.…”

Section: Znse and Other Windowsmentioning

confidence: 99%

Tailored Ceramics for Laser Applications

Hollingsworth

2007

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Effect of LiAl5O8 additions on the sintering and optical transparency of LiAlON

Cited by 33 publications

References 27 publications

Optical Properties of (Oxy)Nitride Materials: A Review

Optical Properties of (Oxy)Nitride Materials: A Review

Highly Transparent AlON Pressurelessly Sintered from Powder Synthesized by a Novel Carbothermal Nitridation Method

Tailored Ceramics for Laser Applications

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