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What causes porosity in PFM ceramics?
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<blockquote data-quote="Tom Moore" data-source="post: 53101" data-attributes="member: 1247"><p>This can be caused by unburned carbon based fuel being forced into the alloy from a torch not properly set. Usually very close examination can narrow down the possible causes. A bubble cause by a stray contaminate in the ceramic can usually be opened up and fixed but one from a contaminated alloy will just get worse. </p><p></p><p>A bubble that is still attached our in close proximity to a spot on the opaque is usually a start over.</p></blockquote><p></p>
[QUOTE="Tom Moore, post: 53101, member: 1247"] This can be caused by unburned carbon based fuel being forced into the alloy from a torch not properly set. Usually very close examination can narrow down the possible causes. A bubble cause by a stray contaminate in the ceramic can usually be opened up and fixed but one from a contaminated alloy will just get worse. A bubble that is still attached our in close proximity to a spot on the opaque is usually a start over. [/QUOTE]
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What causes porosity in PFM ceramics?
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