Abstract:
A ceramic and a preparation method therefor are provided. The ceramic includes a zirconia matrix, and an additive dispersed inside and on an outer surface of the zirconia matrix. The additive is an oxide including elements A and B, where A is selected from at least one of Ca, Sr, Ba, Y, and La, and B is selected from at least one of Cr, Mn, Fe, Co, and Ni.
Abstract:
The present disclosure provides a magnesium alloy and a preparation method and an application thereof. Based on the total weight of the magnesium alloy, the magnesium alloy includes 2-3.5 wt% of Ce, 0.01-0.2 wt% of R, 0.8-1.5 wt% of Mn, 0-0.01 wt% of Fe, 0-0.01 wt% of Cu, 0-0.01 wt% of Ni, 0-0.01 wt% of Co, 0-0.01 wt% of Sn, 0-0.01 wt% of Ca, and 94.74-97.19 wt% of Mg, wherein R is at least one selected from Al and Zn.
Abstract:
The present disclosure provides a metal compound. The metal compound is represented by a formula(I): Cu 2 A α B 2-α O 4-β . A contains at least one element selected from the groups 6 and 8 of the periodic table. B contains at least one element selected from the group13 of the periodic table, 0
Abstract:
An electric heater, and an apparatus, a heating and air conditioning system and a vehicle, each comprising the electric heater, are provided. The electric heater comprises an outer frame; a heating core configured to connect to a power source and disposed within the outer frame; and a sealing-waterproof glue member disposed within the outer frame and configured to encase at least one end of the heating core. The heating core further comprises: a plurality of heat dissipating components and heating components arranged alternately, and each of the heat dissipating component is coupled with a heating component via a thermal conductor. Each of the heating components further comprises a core tube and a positive temperature coefficient thermistor disposed in the core tube.
Abstract:
An amorphous alloy and a method for preparing the amorphous alloy are provided. The amorphous alloy is represented by a formula of (Zr,Hf) a M b N c Be d . M contains at least one element selected from transition group elements. N contains at least one selected from Al and Ti. And 40≤a≤70, 10≤b≤40, 5≤c≤20, 5≤d≤25, and a+b+c+d=100. The ratio of an atomic percentage of Hf to an atomic percentage of Zr is in a range of about 0.01 to about 5.
Abstract:
A sealing assembly for a battery, a method of preparing the sealing assembly and a lithium ion battery are provided. The sealing assembly for a battery comprises: a ceramic ring (3) having a receiving hole (31), a metal ring (4) fitted over the ceramic ring (3) for sealing an open end of the battery, and a column (2) formed in the receiving hole (31) which comprises a metal-metal composite (21), wherein the metal-metal composite (21) comprises: a metal porous body, and a metal material filled in pores of the metal porous body.
Abstract:
Metalized plastic substrate and methods of producing the same are provided herein. The method includes providing a plastic having at least one accelerator dispersed in the plastic. The accelerator/s have a formula AM x B y O z , in which A is one or more elements selected from groups 10 and 11 of the Element Periodic Table; M is one or more metal elements in three plus selected from the group consisting of Fe, Co, Mn, Al, Ga, In, TI, and rare earth elements; and O is oxygen; and x=0-2, y=0.01-2; z=1-4; and the accelerator/s further have an alternative formula A'M' m O n , in which A' is one or more elements selected from groups 9, 10, and 11 of the periodic table; M' is one or more elements selected from the group consisting of Cr, Mo, W, Se, Te, and Po; and O is oxygen; and m=0.01-2; n=2-4. The method includes the step of irradiating a surface of plastic substrate to expose at least a first accelerator. The method further includes plating the irradiated surface of the plastic substrate to form at least a first metal layer on the irradiated surface, and then plating the first metal layer to form at least a second metal layer.
Abstract translation:金属化塑料基材及其制备方法。 该方法包括提供一种具有分散在塑料中的至少一种促进剂的塑料。 加速器具有公式AM x B y O z,其中A是选自元素周期表的组10和11的一种或多种元素; M是选自Fe,Co,Mn,Al,Ga,In,TI和稀土元素中的三种加成中的一种或多种金属元素; 和O是氧; x = 0-2,y = 0.01-2; Z = 1-4; 并且加速剂进一步具有另外的式A'M'm O n,其中A'是选自元素周期表第9,10和11族的一种或多种元素; M'是选自Cr,Mo,W,Se,Te和Po中的一种或多种元素; 和O是氧; m = 0.01-2; N = 2-4。 该方法包括照射塑料基板的表面以暴露至少第一加速器的步骤。 该方法还包括电镀塑料基板的照射表面以在被照射的表面上形成至少第一金属层,然后电镀第一金属层以形成至少第二金属层。
Abstract:
A method for metalizing a plastic surface is provided. The method may comprise the steps of: 1) gasifying the plastic surface to expose the chemical plating promoter; 2) chemical plating a layer of copper or nickel on the plastic surface, and 3) plating the plated surface in step 2) by electroplating or chemical plating at least one more time to form a metalized layer on the plastic surface. Further, A method for preparing a plastic article and a plastic article manufactured by the method as described may be provided.
Abstract:
The present disclosure discloses a colloidal palladium activator composition comprising colloidal palladium particles, sodium chloride, glyoxylic acid, hydrochloride solution, stannous chloride; and a stabilizer. The glyoxylic acid has strong reductive ability, which prevents the oxidation of palladium 2+ in the activator to prolong the life of the activator. At the same time, the glyoxylic acid distributes around the colloidal palladium particles which may separate the colloidal palladium particles more evenly and prevent the colloidal palladium particles from coagulation, further strengthening the activity of the activator. The present disclosure also discloses a method for preparing the colloidal palladium activator composition. During the activation process according to an embodiment of the present disclosure, glyoxylic acid may absorb on the surface of the nonmetal substrate at first to strengthen the bonding force between the glyoxylic acid and the nonmetal substrate, which may favor the evenness and flatness of the coating layer, and further enhanced the adhesive strength between the plating layer and the substrate. Also, an activating method using a colloidal palladium activator composition for nonmetal surfaces is disclosed.