公开(公告)号：US10125051B2

公开(公告)日：2018-11-13

申请号：US15566818

申请日：2016-04-01

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Jun Sugawara

IPC: C04B35/195

Abstract: A cordierite-based sintered body comprises cordierite as a primary crystal phase and LaMgAl11O19 as a secondary crystal phase, wherein a ratio ILMA (114)/IMAS (004) is in the range of 0.01 to 0.8, where the ILMA (114) denotes a peak intensity of a (114) plane of LaMgAl11O19 as measured by powder X-ray diffractometry, and the IMAS (004) denotes a peak intensity of a (004) plane of cordierite as measured by powder X-ray diffractometry. The disclosure is intended to enhance mechanical property and improve complex and fine processability for a cordierite-based sintered body without compromising low thermal expansibility, high dimensional long-term stability, high stiffness (high elastic modulus) and precision polishing characteristic.