公开(公告)号：US20220314488A1

公开(公告)日：2022-10-06

申请号：US17704087

申请日：2022-03-25

Applicant: CORNING INCORPORATED

Inventor： Bethany Rose Conway ,  Robin May Force ,  James Scott Sutherland ,  James William Zimmermann

IPC: B28B3/00 ,  C04B35/626 ,  C04B35/634 ,  B28B7/00 ,  B28B7/10 ,  B28B1/00

Abstract: The disclosure relates to methods of fabricating of ceramic structures, and more particularly to methods of fabricating ceramic structures having profiled surfaces and more particularly to methods of fabrication of ceramic mirror blanks. In one embodiment, a method of forming a shaped ceramic article, includes: forming, via one of a cold-pressing process or pressure casting process, a green ceramic article comprising a first surface, an opposing second surface and at least one high aspect ratio feature shaped into at least one surface; heating the green featured ceramic part to form a debound featured ceramic part; and densifying the debound featured ceramic part via one of a pressureless sintering process or a hot-pressing process.