Abstract:
Produit fritté présentant une analyse chimique telle que, en pourcentages en masse sur la base des oxydes, les oxyde(s) de fer, de cobalt et de chrome étant exprimés sous la forme Fe 2 O 3 , Co 3 O 4 et Cr 2 O 3 , respectivement : - ZrO 2 partiellement stabilisée avec CeO 2 et Y 2 O 3 : complément à 100%, - Al 2 O 3 : 3% - 19%, - un additif choisi parmi CaO, les oxydes de manganèse, ZnO, les oxydes de praséodyme, SrO, les oxydes de cuivre, Nd 2 O 3 , BaO, et leurs mélanges : 2 O 3 : > 0,2%, - Co 3 O 4 + Cr 2 O 3 > 0,2%, - impuretés : 2 O 3 + Co 3 O 4 + Cr 2 O 3 dans le produit, - Cr P désignant la proportion de Cr 2 O 3 dans P, - Co P désignant la proportion de Co 3 O 4 dans P, - R étant égal à 100%*Cr P /P, - P > 0,1*Al 2 O 3 + 1%, - 10,5% > P + additif, - R P 2 et Y 2 O 3 étant présents en des quantités telles que, en pourcentage molaire sur la base de la somme de ZrO 2 , CeO 2 et Y 2 O 3 , - CeO 2 : 2,5 – 5,5 mol% et - Y 2 O 3 : 0,5 - 2 mol%, les teneurs des oxydes de zirconium, d'aluminium, de fer, de cobalt et de chrome et les teneurs en additif et en impuretés étant exprimées en pourcentages en masse sur la base des oxydes.
Abstract translation:
产品fritt&oacute; 显示化学分析结果,以氧化物为基准的质量百分比表示为Fe 2 O 3的铁,钴和氧化铬(一种或多种) O 3,Co 3 O 4和Cr 2 O 3分别为: - 用CeO 2和Y 2 O 3部分稳定的ZrO 2:完全地&lt; 100%, - Al 2 O 3:3%-19%, - 选自CaO,锰的氧化物,ZnO,氧化镨的添加剂; odyme,SrO,氧化铜,Nd 2 O 3,BaO及它们的配合物: 6%, - Fe 2 O 3::&gt; 0.2%, - Co 3 O 4 4+ Cr 2 O 3 3, 0.2%, - 杂质: 2%,条件是 - P表示总含量Fe 2 O 3 3+ Co 3 O 4 4 / sub > + Cr 2 O 3:产物中Cr 2 O 3的比例, - Cr 2 P 3表示Cr 2 O 3 在P中,-CO表示在P 1,-R中的Co 3 O 4的比例 也是 100%* CrP / P, - P> 0.1 * Al 2 O 3 3 + 1%, - 10.5%> 1。 P +添加剂, - R < 7,如果100%* Co
Abstract:
A three-dimensional (3D) printing composition includes ceramic filaments comprising an additive having an aspect ratio of at least 2:1. 3D printed ceramic articles include the ceramic filaments.
Abstract:
To provide powder for thermal spraying, a method of thermal spraying, and a thermally sprayed coating, which can efficiently work supplying of a dry state powder by using a powder supplying apparatus with a thermal spraying apparatus, and which prevent variation and pulsation or lowering of supplied amount of powder and achieve a required film forming rate, and can obtain a denser coating on the surface of the substrate to be thermally sprayed. [Solution] Powder for thermal spraying 1 is a powder mixture obtained by mixing ceramic powder A whose particle diameter is D 1 and ceramic powder B whose particle diameter is D 2 , wherein D 1 is 0.5 to 12 μπι as a median diameter, D 2 is 0.003 to 0.100 μιη as an average particle diameter converted from the BET specific surface area, and when, in the powder mixture, the total weight of the ceramic powder A to be used whose prescribed particle diameter D 1 is W 1 , and the total weight of the ceramic powder B to be added to the ceramic powder A is W2, an addition ratio Y of the ceramic powder B defined by Y = W 2 / (W 1 + W 2 ) satisfies: Y ≥ 0.2066 x D 1 -0.751 and Y ≤ 0.505 x D 1 -0.163 .
Abstract:
A refractory article includes a body including a ceramic having an aluminosilicate present in an amount of at least 70 wt% and not greater than 99 wt% for a total weight of the body, and the body further includes a dopant including a Mg-containing oxide compound and a Fe-containing oxide compound, and the dopant is present in an amount within a range including at least 1 wt% and not greater than 12 wt%.
Abstract:
A process for forming an electrolyte for a metal-supported solid-oxide fuel cell, the process comprising: a. combining a doped-ceria powder with a sintering aid and solvent to form a slurry; b. applying the slurry to an anode layer; c. drying to form a green electrolyte; and d. firing the green electrolyte to form a sintered electrolyte; wherein the slurry in step b. comprises doped-ceria powder with a physical property selected from bimodal particle size distribution, a BET surface area in the range 15 - 40 m2/g, a spherical morphology, or combinations thereof together with an electrolyte obtained by the process, a fuel cell and fuel cell stack, comprising the electrolyte, and the use of the fuel in the generation of electrical energy.
Abstract:
A method for producing a catalyst or catalyst precursor is described comprising: (i) applying a slurry of a particulate catalyst compound in a carrier fluid to an additive layer manufactured support structure to form a slurry-impregnated support, and (ii) drying and optionally calcining the slurry-impregnated support to form a catalyst or catalyst precursor, wherein the mean particle size (D50) of the particulate catalyst compound in the slurry is in the range 1-50µm and the support structure has a porosity ≥ 0.02ml/g.
Abstract:
This invention relates to porous microparticulate carriers that incorporate radioisotopes to form radiomicroparticles for radiation therapy and imaging. The invention also provides methods of preparing the microparticles and methods of treatment using the radiomicroparticles.
Abstract:
A highly purified diatomite composition may indude greater than or equal to 90% silica, from about 0.5% to about 5% of a calcium-containing compound, and less than or equal to about 2% total of aluminum-containing oxides and iron-containing oxides. A method of making a highly purified diatomite composition may include providing a diatomite comprising at least 5% of a calcium-containing compound, calcining the diatomite, and acid washing the calcined diatomite. The calcined, acid-washed diatomite may include less than or equal to about 1 % total of extractable aluminum-containing oxides and iron-containing oxides, and less than or equal to about 5% of the calcium-containing compound. The acid washing may include an acid selected from the group consisting of sulfuric acid (Η 2 SO 4 ), hydrochloric acid (HCI), and nitric acid (HNO 3 ). The method may not include a flotation step.
Abstract:
The present application relates to a protective and abradable coating composition for application on rolls and more particularly to conveyor rolls comprising an abradable coating for use in high temperature applications, to a process for making such rolls and to the use thereof. Corrosion by aluminium melt is reduced and build-up substances are removed by friction. The life time of the roll is then increased. The coating comprises 83-98 wt% of an aggregate comprising particles of Si3N4, SiC or SiAION or a mixture thereof and 2-17 wt% of submicronic particles of AI2O3, SiO2, ZrO2, CeO2, Y2O3 or a mixture thereof.
Abstract translation:本申请涉及用于辊上的保护性和耐磨性涂料组合物,更具体地涉及包含用于高温应用的耐磨涂层,用于制造这种辊的方法及其用途的输送辊。 铝熔体的腐蚀减少,积累物质被摩擦除去。 然后卷的寿命增加。 涂层包含83-98重量%的包含Si 3 N 4,SiC或SiAION或其混合物的颗粒的聚集体和2-17重量%的Al 2 O 3,SiO 2,ZrO 2,CeO 2,Y 2 O 3的亚微米颗粒或其混合物。
Abstract:
Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.