Microwave sintering of AlN powder synthesized by a SHS method

Hsieh, Cheng Yu; Lin, Chun Nan; Chung, Shyan Lung; Cheng, Jiping; Agrawal, Dinesh Kumar

doi:10.1016/j.jeurceramsoc.2006.03.003

Cited by 34 publications

(10 citation statements)

References 21 publications

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“…Among these, Y 2 O 3 is considered as one of the effective additives to greatly improve the thermal conductivity of AlN 4 . In addition to this, the thermal conductivity of AlN can be further improved via sintering in a reducing N 2 atmosphere for long periods, 5 spark plasma sintering, 6 or microwave sintering 7,8 …”

Section: Introductionmentioning

confidence: 99%

Fabrication of c‐axis–oriented AlN bulk ceramics using a rotating magnetic field

Suzuki

Kobayashi

Uchikoshi

2022

Int J Applied Ceramic Tech

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Controlling the crystallographic orientation in bulk ceramics is expected to improve their properties that depend on the axis of the crystal structure. The development of crystallographic orientation using a magnetic field has been reported in various types of bulk ceramics with anisotropic crystal structures. In this study, c-axis-oriented AlN bulk ceramics were prepared by slip casting in a rotating high magnetic field. The c-axes of 61% of the grains were aligned within 20 • . Due to this orientation, the thermal conductivity of AlN was improved. A thermal conductivity difference of approximately 14% at room temperature was observed for the samples with different orientation axes, which is higher than its intrinsic anisotropy.

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Section: Introductionmentioning

confidence: 99%

Fabrication of c‐axis–oriented AlN bulk ceramics using a rotating magnetic field

Suzuki

Kobayashi

Uchikoshi

2022

Int J Applied Ceramic Tech

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“…Microwaves, which can heat material rapidly and selectively, have recently become the focus of attention for many researchers. Microwaves can be used to heat the internal components of materials with low thermal conductivity; this property of microwaves has been applied for sintering, relevant chemical reactions, and joining [1][2][3][4][5][6][7]. Joining by microwaves in particular has been treated as an important technology by many researchers [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Joining of Al2O3 Rods Using Microwaves and Employing Sic Particles as Adhesive

et al. 2019

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The joining of Al2O3 rods using SiC particles in a microwave field was examined. SiC with high microwave absorption characteristics is coated on the fracture surface of Al2O3 rods. Then, microwave irradiation is performed using a 2.45 GHz single-mode cavity and the Al2O3 rods are rapidly joined. Energy dispersive X-ray spectroscopy reveals that the substance generated on the joining surface comprises Al and O. It is believed that the SiC interacts with the microwave to generate microwave plasma and that the plasma melts the Al2O3 rods. Thus, the matrix melts and the fracture surfaces are joined.

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“…In an effort to sinter nanostructured TiN compacts, a second phase such as AlN has been added to inhibit grain growth. AlN has many attractive properties including a high thermal conductivity, a lower thermal expansion, and other good electrical properties [18].…”

Section: Introductionmentioning

confidence: 99%