Patent ID: 9334565
Filing Date: 2016-05-10
CPC Classification: B22F,C22C,C23C,H01J

Claim Text:
1. A method for making a sputtering target, comprising the steps of: a. providing first and second at least partially consolidated powder metal blocks each having a prepared surface, and each including an alloy including molybdenum in an amount greater than about 30 percent by weight and at least one additional alloying element; b. interposing between the consolidated powder metal blocks at least one continuous solid interface portion; c. contacting the prepared surface of the first block indirectly with the prepared surface of the second block via the at least one continuous solid interface portion in the substantial absence of any loose powder bonding agent between contacted surfaces to form a contacted joint structure; d. isostatically pressing the contacted structure at a temperature that is less than about 1080° C. at a pressure and for a time sufficient to realize a consolidated joint between the first and second blocks; wherein the interposing step includes a step selected from (i) cold spraying a metal powder onto at least one of the blocks for forming the at least one continuous solid interface portion; (ii) compacting a body of metal powder to form the at least one continuous solid interface portion; (iii) sintering a body of a metal powder mixture to form the at least one continuous solid interface portion; (iv) cold spraying a metal powder into a die for forming the at least one continuous solid interface portion; (v) cold spraying a metal powder onto a substrate to form the at least one continuous solid interface portion that may include or omit the substrate; or (vi) any combination of (i) through (v).