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Method for rapid removal of cores made of amp;bgr;Al.sub.2 O.sub.3 from directionally solidified eutectic and superalloy and superalloy materials
Method for rapid removal of cores made of amp;bgr;Al.sub.2 O.sub.3 from directionally solidified eutectic and superalloy and superalloy materials
Caustic solutions are employed in an autoclave process to rapidly remove cores made of &bgr;-Al.sub.2 O.sub.3 from directionally solidified eutectic alloy and superalloy materials.
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