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公开(公告)号：US08871676B2
公开(公告)日：2014-10-28
申请号：US13059990
申请日：2009-09-18
申请人： Daniel Grohol , Chan Han , Aleksander J. Pyzik
发明人： Daniel Grohol , Chan Han , Aleksander J. Pyzik
IPC分类号： B01J23/00 , B01J21/00 , C04B35/195 , C04B41/50 , C04B35/185
CPC分类号： C04B35/195 , C04B35/185 , C04B41/5025 , C04B2235/3463 , C04B2235/3481
摘要： Porous composites of mullite and cordierite are formed by firing an acicular mullite body in the presence of a magnesium source and a silicon source. In some variations of the process, the magnesium and silicon sources are present when the acicular mullite body is formed. In other variations, the magnesium source and the silicon source are applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of mullite and cordierite alone, and have higher fracture strengths than cordierite at a similar porosity. Some of the cordierite forms at grain boundaries and/or points of intersection between mullite needles, rather than merely coating the needles. The presence of magnesium and silicon sources during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
摘要翻译： 莫来石和堇青石的多孔复合材料是通过在镁源和硅源的存在下焙烧针状莫来石体形成的。 在该方法的一些变型中，当形成针状莫来石体时，存在镁和硅源。 在其它变型中，将镁源和硅源施加到预先形成的针状莫来石体上。 令人惊奇的是，复合材料的线性热膨胀系数与莫来石和堇青石单体的中间相似，并且具有比类似孔隙率的堇青石更高的断裂强度。 在莫来石针之间的晶界和/或交叉点处的一些堇青石形式，而不仅仅是涂覆针。 在针状莫来石形成过程中镁和硅源的存在并不会显着影响产生莫来石针的高度多孔网络的能力。
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公开(公告)号：US08999872B2
公开(公告)日：2015-04-07
申请号：US14004301
申请日：2012-03-29
IPC分类号： C04B35/00 , C01G23/00 , C04B35/185 , C04B35/478 , C04B38/06
CPC分类号： C01G23/003 , C04B35/185 , C04B35/478 , C04B38/0615 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/327 , C04B2235/3409 , C04B2235/3445 , C04B2235/349 , C04B2235/445 , C04B2235/46 , C04B2235/6562 , C04B2235/6581 , C04B2235/6583 , C04B2235/78 , C04B2235/80 , C04B2235/85 , C04B2235/9607 , C04B38/0074
摘要： Porous composites of acicular mullite and tialite are formed by firing an acicular mullite body in the presence of an oxide of titanium. In some variations of the process, the oxide of titanium is present when the acicular mullite body is formed. In other variations, the oxide of titanium is applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of acicular mullite and tialite alone. Some of the tialite is believed to form at grain boundaries and/or points of intersection between acicular mullite needles, rather than merely coating the needles. The presence of the titanium oxide(s) during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
摘要翻译： 通过在钛的氧化物的存在下烧制针状莫来石体形成针状莫来石和铁酸盐的多孔复合材料。 在该方法的一些变型中，当形成针状莫来石体时，存在钛的氧化物。 在其它变型中，钛的氧化物被施加到预先形成的针状莫来石体上。 令人惊奇的是，复合材料的线性热膨胀系数与单独的针状莫来石和硅酸盐相当。 据信一些铁矿石在针状莫来石针之间的晶界和/或交叉点处形成，而不仅仅是涂覆针。 在针状莫来石形成过程中二氧化钛的存在并不会显着影响产生莫来石针的高度多孔网络的能力。
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公开(公告)号：US20140128243A1
公开(公告)日：2014-05-08
申请号：US14004301
申请日：2012-03-29
IPC分类号： C01G23/00
CPC分类号： C01G23/003 , C04B35/185 , C04B35/478 , C04B38/0615 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/327 , C04B2235/3409 , C04B2235/3445 , C04B2235/349 , C04B2235/445 , C04B2235/46 , C04B2235/6562 , C04B2235/6581 , C04B2235/6583 , C04B2235/78 , C04B2235/80 , C04B2235/85 , C04B2235/9607 , C04B38/0074
摘要： Porous composites of acicular mullite and tialite are formed by firing an acicular mullite body in the presence of an oxide of titanium. In some variations of the process, the oxide of titanium is present when the acicular mullite body is formed. In other variations, the oxide of titanium is applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of acicular mullite and tialite alone. Some of the tialite is believed to form at grain boundaries and/or points of intersection between acicular mullite needles, rather than merely coating the needles. The presence of the titanium oxide(s) during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
摘要翻译： 通过在钛的氧化物的存在下烧制针状莫来石体形成针状莫来石和铁酸盐的多孔复合材料。 在该方法的一些变型中，当形成针状莫来石体时，存在钛的氧化物。 在其它变型中，钛的氧化物被施加到预先形成的针状莫来石体上。 令人惊奇的是，复合材料的线性热膨胀系数与单独的针状莫来石和硅酸盐相当。 据信一些铁矿石在针状莫来石针之间的晶界和/或交叉点处形成，而不仅仅是涂覆针。 在针状莫来石形成过程中二氧化钛的存在并不会显着影响产生莫来石针的高度多孔网络的能力。
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公开(公告)号：US20110166018A1
公开(公告)日：2011-07-07
申请号：US13059990
申请日：2009-09-18
申请人： Daniel Grohol , Chan Han , Aleksander J. Pyzik
发明人： Daniel Grohol , Chan Han , Aleksander J. Pyzik
IPC分类号： B01J32/00
CPC分类号： C04B35/195 , C04B35/185 , C04B41/5025 , C04B2235/3463 , C04B2235/3481
摘要： Porous composites of mullite and cordierite are formed by firing an acicular mullite body in the presence of a magnesium source and a silicon source. In some variations of the process, the magnesium and silicon sources are present when the acicular mullite body is formed. In other variations, the magnesium source and the silicon source are applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of mullite and cordierite alone, and have higher fracture strengths than cordierite at a similar porosity. Some of the cordierite forms at grain boundaries and/or points of intersection between mullite needles, rather than merely coating the needles. The presence of magnesium and silicon sources during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
摘要翻译： 莫来石和堇青石的多孔复合材料是通过在镁源和硅源的存在下焙烧针状莫来石体形成的。 在该方法的一些变型中，当形成针状莫来石体时，存在镁和硅源。 在其它变型中，将镁源和硅源施加到预先形成的针状莫来石体上。 令人惊奇的是，复合材料的线性热膨胀系数与莫来石和堇青石单体的中间相似，并且具有比类似孔隙率的堇青石更高的断裂强度。 在莫来石针之间的晶界和/或交叉点处的一些堇青石形式，而不仅仅是涂覆针。 在针状莫来石形成过程中镁和硅源的存在并不会显着影响产生莫来石针的高度多孔网络的能力。
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