| abstract |
In the X-ray diffraction diagram of the cordierite sintered body of the present invention, the ratio of the peak top intensity of the (110) plane of cordierite to the sum of the intensities of the maximum peaks of the components other than the cordierite component is 0.0025 or less. Such a cordierite sintered body has a relatively small number of phases other than the cordierite component, and the surface flatness when the surface is polished to a mirror surface is high. |