摘要:
The invention relates to a porous structure containing a ceramic material mainly including or constituting an oxide material containing titanium, aluminium, zirconium and silicon with the following composition, in weight percentages on the basis of the oxides: 15% to 55% of Al 2 O 3 , 20% to 45% of TiO 2 , 1% to 30% of SiO 2 , 0.7% to 20% overall of at least one oxide selected among ZrO 2 , Ce 2 O 3 and HfO 2 , less than 1% of MgO. Said composition also contains other elements selected, on the basis of the oxides, among CaO, Na 2 O, K 2 O, SrO, B 2 O 3 and BaO, the total amount of said oxides being less than 15% and more than 1%, and said material being obtained by reactive sintering of said simple oxides or any of the precursors thereof or by thermal treatment of sintered grains with said composition.
摘要翻译:本发明涉及一种含有陶瓷材料的多孔结构体,该陶瓷材料主要包含或构成含有钛,铝,锆和硅的氧化物材料,其含量以氧化物为基准的重量百分比为:Al 2 O 3:15%至55% ,TiO 2为20%〜45%,SiO 2为1%〜30%,ZrO 2,Ce 2 O 3和HfO 2中的至少一种氧化物为0.7〜20%,MgO小于1%。 所述组合物还含有以CaO,Na 2 O,K 2 O,SrO,B 2 O 3和BaO中的氧化物为基准选择的其它元素,所述氧化物的总量小于15%且大于1%,以及 所述材料通过所述简单氧化物或其任何前体的反应性烧结或通过用所述组合物对烧结颗粒进行热处理而获得。
摘要:
The invention relates to molten grains consisting essentially of titanium sub-oxides of the formulation Ti n O 2n-1 , in which said phases are principally Ti 5 O 9 or Ti 6 O 11 or a mixture of these two phases, said phases Ti 5 O 9 and/or Ti 6 O 11 representing, in total, more than 60 % of the weight of the grains, said grains further comprising less than 30% by weight of Ti 4 O 7 .