| 1. | By using the high pure alumina micro - powder ( > 99 . 0 % ) and the polymorphous alumina fiber as materials , by adding alumina sulfate as the binder or polypropylene - amide as the disperser respectively , through mixing , dispersing , and compression molding , at different temperatures of 1200 c , 1350 c , 1400 c , 1500 c , and 1550 c with no pressure , the alumina fiber - alumina composites were made 本试验采用高纯氧化铝微粉( 99 . 0 )和多晶氧化铝纤维为原料,分别加入硫酸铝和聚丙烯酰胺作结合剂和分散剂,经混合、分散、压力成型及在1200 、 1350 、 1400 、 1500 、 1550下无压烧成制得氧化铝纤维? ?氧化铝复合材料。 |