High thermally conductive aluminum nitride sintered product

Details High thermally conductive aluminum nitride sintered product High thermally conductive aluminum nitride sintered product

2008-11-17

2010-02-16

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Refractory

Reexamination Certificate

active

07662736

ABSTRACT:
The high thermal conductive aluminum nitride sintered body according to the present invention has: a thermal conductivity of 220 W/m·K or more; and a three point bending strength of 250 MPa or more; wherein a ratio (IAl2Y4O9/IAlN) of X-ray diffraction intensity (IAl2Y4O9) of Al2Y4O9(201 plane) with respect to X-ray diffraction intensity (IAlN) of aluminum nitride (101 plane) is 0.002 to 0.03. According to the foregoing structure, there can be provided an aluminum nitride sintered body having a high thermal conductivity and excellent heat radiating property.

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