US3647415A - Tantalum powder for sintered capacitors ...
Tantalum powder for electrolytic capacitors wherein tantalum particles in said powder have an average flakiness of 2 to 60, at least 80 percent by weight of said powder consisting of particles having a shorter breadth of 3 to 250 Mu and said powder being free from particles having a shorter breadth of above 500 Mu, and methods of preparing the same.