Nickel-based target material and preparation method and application thereof

Abstract

The invention relates to the field of ceramic target materials, and particularly relates to a nickel-based target material and a preparation method and application thereof. The Nd<1-x>AxNiO3 ceramic target material which is pure in component, uniform in element and density distribution and good in mechanical strength, hardness and density is prepared through a production process of ball-milling, presintering, secondary ball-milling, granulation, blank making, rubber discharging, programmed temperature rising and sintering and programmed cooling, a Nd<1-x>AxNiO3 film can be obtained through magnetron sputtering growth of the Nd<1-x>AxNiO3 ceramic target material, and the film has good crystallinity and high-quality single crystal epitaxy property. In addition, the invention further providesthe Nd<1-x>AxNiO2 film, and the Nd<1-x>AxNiO2 film has excellent superconducting characteristics and electrical transport properties.

Description

technical field

[0001] The invention relates to the field of ceramic targets, in particular to a nickel-based target and its preparation method and application. Background technique

[0002] Superconducting materials refer to materials with zero resistance and the property of repelling magnetic field lines below a certain temperature. Superconducting materials are widely used in precision detection components, energy storage, computers, etc. Since the discovery of superconducting materials more than 100 years ago, superconducting materials such as copper-based and iron-based materials have been discovered one after another. However, it was not until 2019 that nickel-based superconductivity was realized.

[0003] Nd 1-x A x NiO 3 (A=Ca or Sr or Ba) Nd obtained after reduction 1-x A x NiO 2 It can be used for the preparation of nickel-based superconducting thin films. In addition, it also has the electrical transport properties of metal-insulator phase transition. Howev...

Examples

preparation example Construction

[0028] The present invention provides a kind of Nd 1-x A x NiO 3 (A=Ca or Sr or Ba, 0

[0029] Step S1. Using neodymium oxide, alkaline earth carbonate, and nickel oxide as raw materials, and the alkaline earth carbonate is calcium carbonate, strontium carbonate, or barium carbonate, performing ball milling for the first time to prepare the first intermediate;

[0030] Step S2. Pre-calcining the first intermediate, the pre-calcination temperature is 1150°C-1250°C, and the pre-calcination time is 7h-9h, to prepare the second intermediate;

[0031] Step S3. The second intermediate is ball milled for the second time, and then granulated to prepare the third intermediate;

[0032] Step S4. Making the third intermediate into a green target body and performing debinding treatment to prepare the fourth intermediate;

[0033] Step S5. The fourth intermediate is heated up to the sintering temperature by progra...

Embodiment 1

[0054] (1) Ultrasonic clean all utensils with deionized water or absolute ethanol. Be 0.8:0.2:1 by the ratio of the amount of substance and take neodymium oxide, strontium carbonate, nickel oxide respectively, as raw material, with dehydrated alcohol, zirconia ball (mass ratio: raw material: dehydrated alcohol: zirconia ball=1 :1:2, zirconia ball diameter is 2mm) placed in a nylon tank, ball milled in a planetary ball mill for 6 hours to obtain a mixed slurry, pour the mixed slurry into a container, put it in an oven for drying, and the drying temperature is 120°C , drying time 8h;

[0055] (2) Put the powder obtained after drying into a crucible, place it in a muffle furnace for pre-burning, the pre-burning temperature is 1200°C, and the pre-burning time is 8h;

[0056] (3) the powder after pre-calcination is used as raw material, according to the parameter setting in the step (1), carry out ball milling and drying for the second time, the powder after drying is granulated w...

Embodiment 2

[0062] (1) Ultrasonic clean all utensils with deionized water or absolute ethanol. Be 0.8:0.2:1 by the ratio of the amount of substance and take neodymium oxide, barium carbonate, nickel oxide respectively, as raw material, with dehydrated alcohol, alumina sphere (mass ratio: raw material: dehydrated alcohol: alumina sphere=0.9 :1:2.1, alumina ball diameter is 1.8mm) placed in a nylon tank, ball milled in a planetary ball mill for 6 hours to obtain a mixed slurry, pour the mixed slurry into a container, put it into an oven for drying, and the drying temperature is 120 ℃, drying time 8h;

[0063](2) Put the powder obtained after drying into a crucible, place it in a muffle furnace for pre-calcination, the pre-fire temperature is 1250°C, and the pre-fire time is 7h;

[0064] (3) The powder after pre-burning is used as raw material, and ball milling and drying are carried out for the second time according to the parameter setting in step (1), and the powder after drying is granu...

technical field

[0001] The invention relates to the field of ceramic targets, in particular to a nickel-based target and its preparation method and application. Background technique

[0002] Superconducting materials refer to materials with zero resistance and the property of repelling magnetic field lines below a certain temperature. Superconducting materials are widely used in precision detection components, energy storage, computers, etc. Since the discovery of superconducting materials more than 100 years ago, superconducting materials such as copper-based and iron-based materials have been discovered one after another. However, it was not until 2019 that nickel-based superconductivity was realized.

[0003] Nd 1-x A x NiO 3 (A=Ca or Sr or Ba) Nd obtained after reduction 1-x A x NiO 2 It can be used for the preparation of nickel-based superconducting thin films. In addition, it also has the electrical transport properties of metal-insulator phase transition. Howev...

Examples

preparation example Construction

[0028] The present invention provides a kind of Nd 1-x A x NiO 3 (A=Ca or Sr or Ba, 0

[0029] Step S1. Using neodymium oxide, alkaline earth carbonate, and nickel oxide as raw materials, and the alkaline earth carbonate is calcium carbonate, strontium carbonate, or barium carbonate, performing ball milling for the first time to prepare the first intermediate;

[0030] Step S2. Pre-calcining the first intermediate, the pre-calcination temperature is 1150°C-1250°C, and the pre-calcination time is 7h-9h, to prepare the second intermediate;

[0031] Step S3. The second intermediate is ball milled for the second time, and then granulated to prepare the third intermediate;

[0032] Step S4. Making the third intermediate into a green target body and performing debinding treatment to prepare the fourth intermediate;

[0033] Step S5. The fourth intermediate is heated up to the sintering temperature by progra...

Embodiment 1

[0054] (1) Ultrasonic clean all utensils with deionized water or absolute ethanol. Be 0.8:0.2:1 by the ratio of the amount of substance and take neodymium oxide, strontium carbonate, nickel oxide respectively, as raw material, with dehydrated alcohol, zirconia ball (mass ratio: raw material: dehydrated alcohol: zirconia ball=1 :1:2, zirconia ball diameter is 2mm) placed in a nylon tank, ball milled in a planetary ball mill for 6 hours to obtain a mixed slurry, pour the mixed slurry into a container, put it in an oven for drying, and the drying temperature is 120°C , drying time 8h;

[0055] (2) Put the powder obtained after drying into a crucible, place it in a muffle furnace for pre-burning, the pre-burning temperature is 1200°C, and the pre-burning time is 8h;

[0056] (3) the powder after pre-calcination is used as raw material, according to the parameter setting in the step (1), carry out ball milling and drying for the second time, the powder after drying is granulated w...

Embodiment 2

[0062] (1) Ultrasonic clean all utensils with deionized water or absolute ethanol. Be 0.8:0.2:1 by the ratio of the amount of substance and take neodymium oxide, barium carbonate, nickel oxide respectively, as raw material, with dehydrated alcohol, alumina sphere (mass ratio: raw material: dehydrated alcohol: alumina sphere=0.9 :1:2.1, alumina ball diameter is 1.8mm) placed in a nylon tank, ball milled in a planetary ball mill for 6 hours to obtain a mixed slurry, pour the mixed slurry into a container, put it into an oven for drying, and the drying temperature is 120 ℃, drying time 8h;

[0063](2) Put the powder obtained after drying into a crucible, place it in a muffle furnace for pre-calcination, the pre-fire temperature is 1250°C, and the pre-fire time is 7h;

[0064] (3) The powder after pre-burning is used as raw material, and ball milling and drying are carried out for the second time according to the parameter setting in step (1), and the powder after drying is granu...

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