公开(公告)号：US20170336014A1

公开(公告)日：2017-11-23

申请号：US15673592

申请日：2017-08-10

申请人： Covalent Materials Corporation

发明人： Shuko AKAMINE ,  Mitsuhiro FUJITA

IPC分类号： F16L59/02 ,  C04B35/80 ,  C04B35/44 ,  C04B35/443

CPC分类号： F16L59/028 ,  C04B35/44 ,  C04B35/443 ,  C04B35/803 ,  C04B38/00 ,  C04B2111/763 ,  C04B2201/32 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/72 ,  C04B2235/763 ,  C04B2235/79 ,  C04B2235/9607 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/0645

摘要： A heat insulator including a porous sintered body having a porosity of 70 vol % or more, pores having a pore size of more than 1000 μm in a proportion of 10 vol % or less of all pores and pores having a pore size of 0.8 μm or more and less than 10 μm occupy 50 vol % or more and 80 vol % or less of pores having a pore size of 1000 μm or less, while pores having a pore size of 0.01 μm or more and less than 0.8 μoccupy 10 vol % or more and 30 vol % or less pores having a pore size of 1000 μm or less. The porous sintered body is formed from MgAl2O4 raw material and includes a fibrous layer formed from inorganic material fibers, the heat conductivity of the heat insulator at 1000° C. or more and 1500° C. or less being 0.40 W/m·K) or less.

公开(公告)号：US20140112861A1

公开(公告)日：2014-04-24

申请号：US13972040

申请日：2013-08-21

申请人： Covalent Materials Corporation

发明人： Shuko AKAMINE ,  Mitsuhiro Fujita

IPC分类号： C01F7/02

CPC分类号： C01F7/02 ,  C01F7/162 ,  C04B35/44 ,  C04B35/443 ,  C04B38/0074 ,  C04B2111/28 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/763 ,  C04B2235/9607 ,  C04B38/0054

摘要： A heat-insulating material is provided in which thermal conductivity is controlled not to increase and good insulation properties are held even in a high temperature range. The heat-insulating material is formed of a spinel porous sintered body having a porosity of 65 to 90 vol. % and represented by a chemical formula XAl2O4 (X═Zn, Fe, Mg, Ni, or Mn) which is arranged such that large pores having a diameter of greater than 1000 μm occupy 25 vol. % or less of the total pore volume, fine pores having a diameter of 0.45 μm or less occupy 5 to 40 vol. % of the volume of the pores having a diameter of 1000 μm or less, at least one pore-diameter distribution peak is within a range of 0.14 to 10 μm, and is formed of sintered particles having a calculated average particle diameter of 0.04 to 1 μm.

摘要翻译： 提供了一种绝热材料，其中热导率被控制为不增加，并且即使在高温度范围内也保持良好的绝缘性能。 隔热材料由孔隙率为65〜90体积的尖晶石多孔质烧结体构成。 ％，由化学式XAl 2 O 4（X = Zn，Fe，Mg，Ni或Mn）表示，其排列使得直径大于1000μm的大孔占25体积％。 总孔体积的％以下，直径为0.45μm以下的细孔占据5〜40体积％。 直径为1000μm以下的孔的体积的％，至少一个孔径分布峰在0.14〜10μm的范围内，由计算出的平均粒径为0.04〜1的烧结体形成 μm。