【摘要】 以α-Al2O3为主要原料,外加单体丙烯酰胺,水溶性高分子聚乙烯醇,引发剂过硫酸铵,催化剂四甲基乙二胺,分散剂羧甲基纤维素,助烧剂氧化镁、二氧化钛、长石粉,消泡剂无水乙醇等,采用凝胶注模成型工艺,制备出了抗折强度为2.202MPa,体积密度为1.764g/cm3且均匀性好的陶瓷坯体。通过对凝胶注模成型后坯体的体积密度和抗折强度的测定,探讨了工艺参数对坯体成型的影响规律。更多还原

【Abstract】 The ceramic body was prepared by gel-casting processing with α-Al2O3 as main raw materials, acrylamide as monimer, polyvinyl alcohol, ammonium persulfate as initiator, tetramethyl ethylenediamine as catalyst, carboxymethyl cellulose as dispersant, magnesium oxide, titanium oxide and feldspar powder as sintering agent, ethanol as defoamer.The bending strength and the bulk density of ceramic body were measured.The influence of processing parameters on body molding was studied.By means of the optimized processing parameters, the bending strength of the ceramic body is 2.202Mpa and the bulk density is 1.764g/cm3.更多还原