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ballack315629: »ØÌûÖö¥ 2011-12-14 21:25:16
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ballack315629(½ð±Ò+1):лл²ÎÓë
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ballack315629(½ð±Ò+1):лл²ÎÓë
Missile521:±à¼ÄÚÈÝ 2011-12-14 14:14
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ballack315629(½ð±Ò+1):лл²ÎÓë
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ballack315629(½ð±Ò+1):лл²ÎÓë
zhangquan8385(½ð±Ò+2): ¹ÄÀø 2012-01-20 12:46:02
ballack315629(½ð±Ò+1):лл²ÎÓë
zhangquan8385(½ð±Ò+2): ¹ÄÀø 2012-01-20 12:46:02
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ballack315629(½ð±Ò+1): лл²ÎÓë
ballack315629(½ð±Ò+1): лл²ÎÓë
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20Â¥2013-11-15 14:39:17
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For ZrO2 based ceramics, direct indentation method is recommended. You can check the ref, but only for toughed ZrO2. For SENB, the issue is whether a suitable pre-crack existed. You can make a crack by a sharp saw, however, you could not guarantee there is a flaw on the tip of the crack. For some standard, it regulates that a small force should be applied on the sample after making the crack, and an acoustic emission signal should be detected to guarantee the real flaw formation. |
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