Fabrication and Residual Stresses of Aluminum Nitride Ceramics Sintered at High-Pressure

Xiao Lei Li; Shang Sheng Li; Hong An Ma; Xiao Peng Jia

doi:10.4028/www.scientific.net/AMR.79-82.2215

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Fabrication and Residual Stresses of Aluminum...

Fabrication and Residual Stresses of Aluminum Nitride Ceramics Sintered at High-Pressure

Abstract:

High-density AlN ceramics were fabricated without sintering additives at high pressure (5.0 GPa) and temperature (1300-1700 °C). The sintered bodies were characterized by XRD and micro-Raman spectroscopy (MRS). The values of residual stresses due to the distortion of the AlN lattice were assessed using the Micro-Raman Spectroscopy (MRS). Residual compression stress of the AlN ceramics sintered at 5.0 GPa and 1700 °C for 125 min is -2.0 GPa. The residual compression stress increased according to the extension of the sintering time.

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Advanced Materials Research (Volumes 79-82)

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2215-2218

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.2215

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Online since:

August 2009

Authors:

Xiao Lei Li, Shang Sheng Li, Hong An Ma, Xiao Peng Jia

Keywords:

Aluminum Nitride (AlN), Fabrication, High Pressure Sintering, Residual Stress

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