公开(公告)号：US20240254054A1

公开(公告)日：2024-08-01

申请号：US18425423

申请日：2024-01-29

Applicant: JAPAN ULTRA-HIGH TEMPERATURE MATERIALS RESEARCH CENTER

Inventor： Hironaga IGUCHI ,  Hideki OHTSUBO ,  Norifumi MIYAMOTO ,  Ryoichi MIYAUCHI ,  Yuki IZUMICHI ,  Narihito NAKAGAWA

IPC: C04B35/622

CPC classification number: C04B35/62236 ,  C04B2235/3244 ,  C04B2235/5224 ,  C04B2235/5264 ,  C04B2235/762

Abstract: Provided is a eutectic ceramic fiber which has high tensile strength and whose microstructure is not easily coarsened even in a case where the eutectic ceramic fiber is exposed to high temperature air for a long time. The eutectic ceramic fiber includes a Y3Al5O12 matrix and rod-shaped Y2O3-containing cubic crystals of ZrO2 present in such a manner as to be dispersed in the Y3Al5O12 matrix. The Y3Al5O12 matrix is a continuous phase, and the rod-shaped Y2O3-containing cubic crystals of ZrO2 are oriented in a longitudinal direction of the eutectic ceramic fiber.