Rare earth fluoride additive for sintering aluminum nitride

Details Rare earth fluoride additive for sintering aluminum nitride Rare earth fluoride additive for sintering aluminum nitride

1988-02-22

1989-03-07

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501 96, 501151, C04B 3558

Patent

active

048106798

ABSTRACT:
An aluminum nitride ceramic body with a thermal conductivity of at least 0.5 W/cm.multidot.K at 25.degree. C. is produced by shaping a particulate mixture of aluminum nitride powder and an additive selected from the group consisting of YF.sub.3, ScF.sub.3, LF.sub.3 where L is La, Ce, Pr, Nd, Sm, Gd, Dy, Ho and Er and a mixture thereof into a compact and liquid phase sintering the compact.

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