7 results about "Silver-palladium alloy" patented technology

A heater assembly (100) for an aerosol generating system (200), wherein the heater assembly (100) comprises a resistance heating element (102) for vaporizing a liquid aerosol generating substrate and a porous body (104) for transporting the liquid aerosol generating substrate to the resistance heating element (102), the porous body (104) having a liquid absorption surface (104a) and a heating surface (104b), the resistance heating element (102) being located on the heating surface (104b) of the ceramic porous body (104), and the resistance heating element (102) containing a silver-palladium alloy consisting of 53 to 73 weight percent silver, 7 to 23 weight percent palladium, 1 to 7 weight percent carbon, 3 to 17 weight percent oxygen, and impurities.

The invention discloses a silver-palladium alloy nanowire and a preparation method and application thereof, and belongs to the technical field of nano alloy materials. The preparation method comprises the following steps: (1) adding an aqueous solution of hexadecyl trimethyl ammonium bromide and an aqueous solution of dopamine hydrochloride into an aqueous solution of silver nanowires, uniformly stirring, dropwise adding an aqueous solution of sodium chloropalladate, and continuously stirring until the reaction is completed to obtain a reaction product; and (2) carrying out centrifugal washing on the reaction product to obtain the silver-palladium alloy nanowire. The prepared silver-palladium alloy nanowire material is used for catalytic reduction of 4-nitrophenol, verification of a photothermal effect and glutathione level detection, so that the application of the silver-palladium alloy nanowire material in the field of catalysis is effectively expanded; and a brand new nano-alloy material and an application approach are provided for high-sensitivity and high-selectivity detection of glutathione level due to the exertion of a photothermal effect.

A multilayer ceramic capacitor includes a multilayer body including dielectric layers made of ceramic and stacked together, and inner electrodes arranged along multiple interfaces between the dielectric layers, with each inner electrode extending along a respective interface. The inner electrodes include a silver / palladium alloy as a conductive material and also include at least one of (Ag0.7, Pd0.3)TiO3, NaTiO3, and EuTiO3.

The invention relates to a preparation method of a silver-palladium alloy target material ceramic element electrode, which comprises the following steps: step S1, preparation of a bonding layer: firstly, preparing a ceramic substrate, adopting a nickel-chromium alloy target material for sputtering, forming a nickel-chromium bonding layer on the ceramic substrate, and controlling the sputtering power range to be 500-700W; s2, a conductive layer is manufactured, sputtering is conducted on the nickel-chromium bonding layer through a silver-palladium alloy target material, the conductive layer is formed, the sputtering power range is controlled to be 300-500 W, and an electrode is obtained; and S3, heat treatment is conducted, specifically, in the sputtering process of the step S1 or in the sputtering process of the step S2 or after the whole sputtering process is finished, heating treatment is conducted on the ceramic base body, and the heat treatment temperature range is 50-80 DEG C. The method has the advantages that through the synergistic effect of the nickel-chromium bonding layer, the silver-palladium conducting layer with specific components and the optimized heat treatment technology, the heat conductivity of the ceramic base body is improved, and the heat conductivity of the ceramic base body is improved. The preparation of the ceramic element electrode with low cost, high weldability and strong binding force is realized.

The application discloses a high-temperature heat treatment method of silver-palladium alloy powder, which comprises the following steps: weighing superfine silver-palladium powder and pouring it into deionized water for hydrothermal reaction, preparing a dispersant and a coating agent solution, adding the solution into a hydrothermal reaction kettle, heating and keeping the hydrothermal reaction kettle, and carrying out hydrothermal coating; then, the solution in the hydrothermal reaction kettle is centrifugally separated into solid and liquid phases, washed, dried, and crushed to obtain coated silver-palladium alloy powder; the silver-palladium alloy powder and salt are mixed according to a required proportion, and then placed in a muffle furnace and heated to a required temperature; after keeping the temperature, a high-temperature heat treatment silver-palladium alloy powder and salt mixture is obtained; finally, the mixture is washed, dried, and crushed to obtain the high-temperature heat treatment silver-palladium alloy powder. The application can prepare the silver-palladium alloy powder with a size of 1.5-2.5 microns and a tap density of 4.2-6.0 g / cm 3 .

The application provides a preparation method of low-resistance flaky silver-palladium alloy powder and conductive paste, and belongs to the field of preparation of precious metal powder materials. The preparation method of low-resistance flaky silver-palladium alloy powder comprises the following steps: (1) mixing a silver salt solution, a palladium salt solution and a reducing agent solution to perform a reduction reaction, so as to obtain silver-palladium alloy powder; (2) mixing the silver-palladium alloy powder, a dispersion liquid and a ball-milling dispersant, and then performing ball-milling, so as to obtain flaky silver-palladium alloy powder; the milling balls used in the ball-milling include one or more of steel balls, zirconium dioxide balls and agate balls. The flaky silver-palladium alloy powder is prepared by adopting the mode of "alloying first and then ball-milling", the two key links of "alloying" and "flaky" can be independently optimized, the uniformity and the controllability of the morphology of the powder are improved at the atomic level, the prepared flaky silver-palladium alloy powder has good dispersibility and a smooth surface, and has a resistance superior to that of spherical alloy powder, spherical mixed powder and flaky mixed powder.

A heater assembly (100) for an aerosol-generating system (200), the heater assembly (100) comprising: a resistive heating element (102) for vaporizing a liquid aerosol-generating substrate; and a porous body (104) for delivering a liquid aerosol-generating substrate to a resistive heating element (102), the porous body (104) having a liquid absorbing surface (104a) and a heating surface (104b), the resistive heating element (102) being located on the heating surface (104b) of the porous ceramic body (104), where the resistive heating element (102) comprises a silver-palladium alloy, the silver-palladium alloy is composed of 53 wt% to 73 wt% of silver, 7 wt% to 23 wt% of palladium, 1 wt% to 7 wt% of carbon, 3 wt% to 17 wt% of oxygen, and impurities.