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  2. some of the ballmilled powders

some of the ballmilled powders

ballmilled powder after milling for a,b 8 hours, c,d 30 hours and e,f 120 hours The ballmilled powders were subsequently cold pressed at 400 MPa in a rigid 740 mm die. The green compacts were subsequently sintered at 900 C for 30 minutes in hydrogen and slowly cooled down to


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