摘要:
Material, use thereof and method to manufacture said material; wherein the material is porous and has: a total porosity ranging from 50% to 80%, in particular from 60% to 70%; interconnected pores; at least a part made of a hydrophilic material, in particular at least a part of the inner surfaces of the pores is made of a hydrophilic material; a permeability coefficient (k) greater than 10~6 m/sec; and wherein, in a given volume of the material (1), the total volume of pores with a diameter ranging from 0.1 μπι to approximately 0.3 nm is at least greater than 15% of the total volume of the pores, preferably it ranges from 15 to 36%.
摘要翻译:材料,用途及制造方法; 其中所述材料是多孔的,并具有:总孔隙率为50%至80%,特别是60%至70%; 互相连通的孔; 由亲水材料制成的至少一部分,特别是孔的内表面的至少一部分由亲水材料制成; 渗透系数(k)大于10〜6 m / sec; 并且其中,在给定体积的材料(1)中,直径为0.1μm至约0.3nm的孔的总体积至少大于孔的总体积的15%,优选为15 至36%。
摘要:
A method for producing a MAX phase material with general formulation M n+1 AX n-y is disclosed. Thereby M is a transition metal, A is an A-group element and X is carbon (C) and/or nitrogen (N), where the M, A and X position can be occupied by more than 1 element with n being in the range 1 to 3, y being within the range -0.5 to 0.5. The method comprises providing a starting powder said starting powder comprising least one starting hydride powder, compacting the starting powder and producing the MAX phase material by using a pressure assisted sintering technique. Preferably Zr, Hf, Ti, Nb and Ta are used for M and Si, Sn, Pb, Bi and Al for A.
摘要:
A composition having nanoparticles of a refractory-metal carbide or refractory-metal nitride and a carbonaceous matrix. The composition is not in the form of a powder. A composition comprising a metal component and an organic component. The metal component is nanoparticles or particles of a refractory metal or a refractory-metal compound capable of decomposing into refractory metal nanoparticles. The organic component is an organic compound having a char yield of at least 60% by weight or a thermoset made from the organic compound. A method of combining particles of a refractory metal or a refractory-metal compound capable of reacting or decomposing into refractory-metal nanoparticles with an organic compound having a char yield of at least 60% by weight to form a precursor mixture.
摘要:
A polycrystalline diamond material comprising a mass of diamond particles or grains exhibiting inter-granular bonding and a binder material comprises a non-metallic catalyst material for diamond, the non-metallic catalyst material for diamond comprising at least one nitrogen compound derived from an ammonium compound and/or at least one halide compound.
摘要:
Aluminum dry-coated and heat treated cathode material precursors. A particulate precursor compound for manufacturing an aluminum coatedlithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-oxide core and a non-amorphous aluminum oxide coating layercovering the core. By providing a heat treatment process for mixed metal precursors that may be combined with an aluminum dry-coating process, novel aluminum containing precursors that may be used to form high quality nickel based cathode materials are obtained. The aluminum dry-coated and heat treated precursors include particles have, compared to prior art precursors, relatively low impurity levels of carbonate and/or sulfide, and can be produced at lower cost.