| 摘要 |
A grey glass composition employing as its colorant portion at least iron (Fe<SUB>2</SUB>O<SUB>3</SUB>/FeO), cobalt and possibly erbium oxide (e.g., Er<SUB>2</SUB>O<SUB>3</SUB>) is provided. The glass enables high visible transmission, and satisfactory IR absorption, while at the same time achieving desired grey color. In certain example embodiments, the colorant portion includes: <tables id="TABLE-US-00001" num="00001"> <table frame="none" colsep="0" rowsep="0"> <tgroup align="left" colsep="0" rowsep="0" cols="3"> <colspec colname="offset" colwidth="28pt" align="left"/> <colspec colname="1" colwidth="119pt" align="left"/> <colspec colname="2" colwidth="70pt" align="left"/> <THEAD> <ROW> <ENTRY/> <entry namest="offset" nameend="2" align="center" rowsep="1"/> </ROW> </THEAD> <TBODY VALIGN="TOP"> <ROW> <ENTRY/> <ENTRY>total iron (expressed as Fe<SUB>2</SUB>O<SUB>3</SUB>):</ENTRY> <ENTRY><=0.35%</ENTRY> </ROW> <ROW> <ENTRY/> <ENTRY>erbium oxide (e.g., Er<SUB>2</SUB>O<SUB>3</SUB>):</ENTRY> <ENTRY>0 to 0.3%</ENTRY> </ROW> <ROW> <ENTRY/> <ENTRY>selenium (Se):</ENTRY> <ENTRY><=15 PPM</ENTRY> </ROW> <ROW> <ENTRY/> <ENTRY>cobalt oxide (e.g., Co<SUB>3</SUB>O<SUB>4</SUB>):</ENTRY> <ENTRY>5 to 60 ppm</ENTRY> </ROW> <ROW> <ENTRY/> <ENTRY>glass redox:</ENTRY> <ENTRY>>=0.35.</ENTRY> </ROW> <ROW> <ENTRY/> <entry namest="offset" nameend="2" align="center" rowsep="1"/> </ROW> </TBODY> </TGROUP> </TABLE> </TABLES> In other example embodiments, the glass may include higher total iron and/or a lower minimum redox. |
