Patent ID: 8357262

Claim:
A corrosion-resistant member comprising a sintered body that contains α-Al 2 O 3 crystals and YAG (yttrium aluminum garnet) crystals, the content of Al in the sintered body being in the range of 70% to 98% by mass in terms of Al 2 O 3 , the content of Y in the sintered body being in the range of 2% to 30% by mass in terms of Y 2 O 3 , wherein the peak intensity ratio I 116 /I 104 is in the range of 0.94 to 1.98, wherein I 116 and I 104 denote peak intensities assigned to a (116) plane and a (104) plane, respectively, of α-Al 2 O 3 crystals in a surface layer of the sintered body in X-ray diffraction.