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最近,美国Oak Ridge国家实验室开发了一种可以在4200~0F温度下使用的绝热材料。其使用温度较一般的纤维结构材料高出1000~0F。该项成果已取得专利。这种新材料牌号为ZZX-4200,由二氧化锆胶结的二氧化锆纤维构成,并用3～5%的氧化镱进行局部稳定。这种材料能压制成多孔结构形态,适合在真空、惰性和氧化环境下,例如在高温炉、低压燃烧器、热交换器和热气体过滤器中使用。利用这种绝热材料,还可以设计制造一种新型的、可以在3650~0F温度下在氧化环境中操作的工业加工炉。这种使用温度
Recently, the Oak Ridge National Laboratory in the United States has developed a thermal insulation material that can be used at 4200 to 0F. Its use temperature is higher than the average fiber material 1000 ~ 0F. The result has been patented. The new material, ZZX-4200, consists of zirconia-cemented zirconia fibers and is partially stabilized with 3 to 5% ytterbium oxide. This material can be pressed into a porous structure suitable for use under vacuum, inert and oxidizing atmospheres, such as in high temperature furnaces, low pressure burners, heat exchangers and hot gas filters. With this insulation material, it is also possible to design and manufacture a new type of industrial furnace that can be operated in an oxidizing atmosphere at 3650 to 0F. This use temperature