<TABLE height=199 cellSpacing=1 width="100%" border=1>
<TR>
<TD align=middle width="50%" height=27>品 种</TD>
<TD align=middle width="50%" height=27>维氏显微硬度/Mpa(kg/mm2)</TD></TR>
<TR>
<TD align=middle width="50%" height=14>
<P align=center center?>棕刚玉</P></TD>
<TD align=middle width="50%" height=14>19 600~21 600(2 000~2 200)</TD></TR>
<TR>
<TD align=middle width="50%" height=14>白刚玉</TD>
<TD align=middle width="50%" height=14>21 600~2 600(2 200~2 300)</TD></TR>
<TR>
<TD align=middle width="50%" height=14>铬刚玉</TD>
<TD align=middle width="50%" height=14>21 600~22 600(2 200~2 300)</TD></TR>
<TR>
<TD align=middle width="50%" height=14>单晶刚玉</TD>
<TD align=middle width="50%" height=14>21 600~23 500(2 200~2 400)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>微晶刚玉</TD>
<TD align=middle width="50%" height=13>19 600~21 600(2 000~2 200)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>矾土烧结刚玉</TD>
<TD align=middle width="50%" height=13>16 700(1 700)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>锆刚玉</TD>
<TD align=middle width="50%" height=13>14 700(1 500)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>金刚石</TD>
<TD align=middle width="50%" height=13>78 500(8 000)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>碳化硼</TD>
<TD align=middle width="50%" height=13>49 000(5 000)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>碳化硅</TD>
<TD align=middle width="50%" height=13>30 400~3 330(3 100~3 400)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>石榴石</TD>
<TD align=middle width="50%" height=13>13 300(1360)</TD></TR>
<TR>
<TD align=middle width="50%" height=13>石英</TD>
<TD align=middle width="50%" height=13>8 000(820)</TD></TR></TABLE>
<P>根据楼上按照硬质阳极电镀8000-9000Mpa来看,参照上表得出与金刚石硬度差不多,不过8000-9000Mpa准确吗????</P>
[此贴子已经被作者于2005-5-27 10:41:33编辑过]
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