AlON: A brief history of its emergence and evolution

McCauley, James W.; Patel, Parimal; Chen, Mingwei; Gilde, Gary; Straßburger, E.; Paliwal, Bhasker; Ramesh, K.T.; Dandekar, Dattatraya P.

doi:10.1016/j.jeurceramsoc.2008.03.046

Cited by 276 publications

(116 citation statements)

References 44 publications

Supporting

Mentioning

107

Contrasting

Unclassified

Order By: Relevance

“…Therefore, after the soaking stage at 580°C for 8 h, aluminum is nitridized into AlN and the original Al-Al 2 O 3 -MgO system transforms to an AlN-Al 2 O 3 -MgO system. As temperature rises, Al 2 O 3 diffuses and migrates into AlN crystal lattices, forming AlN-polytypoids such as 12H, 21R, and 27R [26]. The reaction equation can be expressed as Fig.…”

Section: Reaction Mechanismmentioning

confidence: 99%

In situ reaction mechanism of MgAlON in Al–Al2O3–MgO composites at 1700°C under flowing N2

Tong

Yan

et al. 2017

Int J Miner Metall Mater

View full text Add to dashboard Cite

Abstract:The Al-Al 2 O 3 -MgO composites with added aluminum contents of approximately 0wt%, 5wt%, and 10wt%, named as M 1 , M 2 , and M 3 , respectively, were prepared at 1700°C for 5 h under a flowing N 2 atmosphere using the reaction sintering method. After sintering, the Al-Al 2 O 3 -MgO composites were characterized and analyzed by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The results show that specimen M 1 was composed of MgO and MgAl 2 O 4 . Compared with specimen M 1 , specimens M 2 and M 3 possessed MgAlON, and its production increased with increasing aluminum addition. Under an N 2 atmosphere, MgO, Al 2 O 3 , and Al in the matrix of specimens M 2 and M 3 reacted to form MgAlON and AlN-polytypoids, which combined the particles and the matrix together and imparted the Al-Al 2 O 3 -MgO composites with a dense structure. The mechanism of MgAlON synthesis is described as follows. Under an N 2 atmosphere, the partial pressure of oxygen is quite low; thus, when the Al-Al 2 O 3 -MgO composites were soaked at 580°C for an extended period, aluminum metal was transformed into AlN. With increasing temperature, Al 2 O 3 diffused into AlN crystal lattices and formed AlN-polytypoids; however, MgO reacted with Al 2 O 3 to form MgAl 2 O 4 . When the temperature was greater than (1640 ± 10)°C, AlN diffused into Al 2 O 3 and formed spinel-structured AlON. In situ MgAlON was acquired through a solid-solution reaction between AlON and MgAl 2 O 4 at high temperatures because of their similar spinel structures.

show abstract

Section: Reaction Mechanismmentioning

confidence: 99%

In situ reaction mechanism of MgAlON in Al–Al2O3–MgO composites at 1700°C under flowing N2

Tong

Yan

et al. 2017

Int J Miner Metall Mater

View full text Add to dashboard Cite

show abstract

“…It has drawn much attention from the society since the Al 5 O 6 N with spinel structure was found [10][11][12][13][14][15][16][17]. Compared with the normal Al 2 O 3 , the crystal lattice in Al 5 O 6 N recombines, because the atom "O" is displaced by the atom "N".…”

Section: Preparation Of Nanometer Al 5 O 6 N Via Shock Wave Plasmas Tmentioning

confidence: 99%

Preparation of Nano Al5O6N via Shock Wave Plasmas Technique

Wang¹

2011

Nanocrystal

View full text Add to dashboard Cite

“…It not only has high strength, high hardness and good chemical stability, but also has high transparency and its transmitting wavelength range extends from ultraviolet to midinfrared. Due to its promising properties, it can be widely applied in lighting optical and medical instrument, infrared detection and other domains [1][2][3][4][5]. Preparation methods of γ-AlON transparent ceramic can be summarized as two methods: one-step method and two-step method.…”

Section: Introductionmentioning

confidence: 99%