US 12,344,566 B2
Methods for making a ceramic reinforced metal composite for hermetic bodies for implantable devices
Christine A. Frysz, Orchard Park, NY (US); Dallas J. Rensel, Sanborn, NY (US); Brian P. Hohl, Clarence, NY (US); Jonathan Calamel, Clarence, NY (US); and Xiaohong Tang, Williamsville, NY (US)
Assigned to Greatbatch Ltd., Clarence, NY (US)
Filed by Greatbatch Ltd., Clarence, NY (US)
Filed on Sep. 12, 2022, as Appl. No. 17/942,229.
Claims priority of provisional application 63/242,514, filed on Sep. 10, 2021.
Prior Publication US 2023/0085958 A1, Mar. 23, 2023
Int. Cl. C04B 41/51 (2006.01); A61N 1/375 (2006.01); C04B 41/00 (2006.01); C04B 41/45 (2006.01); C04B 41/88 (2006.01)
CPC C04B 41/5122 (2013.01) [A61N 1/3754 (2013.01); C04B 41/0072 (2013.01); C04B 41/4578 (2013.01); C04B 41/5177 (2013.01); C04B 41/88 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising the steps of:
a) mixing metal-containing particles and ceramic particles to form a mixed particles powder;
b) heating the mixed particles powder to a temperature that ranges from about 350° C. to <1,000° C. to soften the metal particles without causing the ceramic particles to undergo a phase change and without sintering the ceramic particles so that the metal of the metal-containing particles flows over and coalesces with the ceramic particles to form metal-ceramic composite particles; and
c) attriting or sieving the metal-ceramic composite particles to form a metal-ceramic composite particle powder ranging in size from about 1 μm to about 50 μm.