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1. It may be due to the problem of binder burn-out. I suggest that you should slow down the heating rate before 400C and add a soaking time at 300-400C. 2. It may due to the problem of residual of carbonate(BaCO3) during synthesis.During firing, BaCO3 decompose, which results in the formation of pinhole. I hope it may be helpful to you. |
7Â¥2008-03-14 10:38:35
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2Â¥2007-11-30 23:31:17
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