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Preparation method of strontium cobaltite film material

A thin film material, strontium cobaltate technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve problems such as limiting the exploration and application of special properties of materials, to ensure uniformity and high uniformity , The effect of material composition stability

Active Publication Date: 2019-01-11
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are relatively few research reports on strontium cobaltate at home and abroad, and there are few reports on the preparation of strontium cobaltate thin films and their magnetic and electrical properties, which limits the discovery and application of the special properties of this material.

Method used

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  • Preparation method of strontium cobaltite film material
  • Preparation method of strontium cobaltite film material
  • Preparation method of strontium cobaltite film material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of strontium cobaltate thin film material, comprising the following steps:

[0035] Step 1: Prepare strontium cobaltate powder by ball milling, as follows;

[0036] 1-1: Combine tricobalt tetroxide and strontium carbonate as SrCoO 3 Accurately weigh the ratio of the amount of the cation in the substance, add an appropriate amount of absolute ethanol, and fully grind with an agate mortar to obtain powder A;

[0037] 1-2: Pour powder A into a ball mill jar, place it in a ball mill at 8 revolutions per minute and mill it for 28 hours to obtain powder B;

[0038] 1-3: Put powder B in a porcelain crucible and place it in a muffle furnace at 950°C for 6 hours to remove organic matter to obtain dry black strontium cobaltate powder;

[0039] Step 2: Calcining the strontium cobaltate powder at high temperature and making a strontium cobaltate block target, the details are as follows;

[0040] 2-1: Grinding the above dried black strontium cobaltate powder ...

Embodiment 2

[0051] A preparation method of strontium cobaltate thin film material, comprising the following steps:

[0052] Step 1: Prepare strontium cobaltate powder by ball milling, as follows;

[0053] 1-1: Combine tricobalt tetroxide and strontium carbonate as SrCoO 3 Accurately weigh the ratio of the amount of the cation in the substance, add an appropriate amount of absolute ethanol, and fully grind with an agate mortar to obtain powder A;

[0054] 1-2: Pour powder A into a ball mill jar, place it in a ball mill with 7 revolutions per minute and mill it for 26 hours to obtain powder B;

[0055] 1-3: Put powder B in a porcelain crucible and place it in a muffle furnace at 850°C for 6.5 hours to remove organic matter to obtain dry black strontium cobaltate powder;

[0056] Step 2: Calcining the strontium cobaltate powder at high temperature and making a strontium cobaltate block target, the details are as follows;

[0057] 2-1: Grinding the above dried black strontium cobaltate pow...

Embodiment 3

[0068] A preparation method of strontium cobaltate thin film material, comprising the following steps:

[0069] Step 1: Prepare strontium cobaltate powder by ball milling, as follows;

[0070] 1-1: Combine tricobalt tetroxide and strontium carbonate as SrCoO 3 Accurately weigh the ratio of the amount of the cation in the substance, add an appropriate amount of absolute ethanol, and fully grind with an agate mortar to obtain powder A;

[0071] 1-2: Pour powder A into a ball mill jar, place it in a ball mill at 7.6 revolutions per minute and mill it for 24 hours to obtain powder B;

[0072] 1-3: Put powder B in a porcelain crucible and place it in a muffle furnace at 900°C for 6 hours to remove organic matter to obtain dry black strontium cobaltate powder;

[0073] Step 2: Calcining the strontium cobaltate powder at high temperature and making a strontium cobaltate block target, the details are as follows;

[0074] 2-1: Grinding the above dried black strontium cobaltate powde...

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Abstract

The invention discloses a preparation method of a strontium cobaltite film material; and magnetic and electric performances of the strontium cobaltite film material are researched. Firstly, a strontium cobaltite powder sample is prepared by adopting a ball milling method; then, the powder sample is dried and prepared as a massive target; and finally, the massive target is deposited on a substrateby a pulse laser deposition method, and is annealed to obtain the strontium cobaltite film material. The strontium cobaltite powder prepared by the ball milling method is more uniform in mixing and higher in particle size uniformity; the ball milling method has the characteristics of simple operation, mild conditions and easy control; a strontium cobaltite film deposited by the pulse laser deposition method has the characteristics of high quality, high uniformity and stable material components; meanwhile, the strontium cobaltite film material prepared on the substrate with similar lattice constant and the same perovskite structure is more stable in structure; and the metal-semiconductor transformation process is observed from the strontium cobaltite film sample.

Description

technical field [0001] The invention belongs to the technical field of thin film materials, and in particular relates to a preparation method of a strontium cobaltate thin film material. Background technique [0002] Magnetic material is a material that is both ancient and widely used. In the continuous development and progress of modern electronic information technology, various components made of magnetic materials are indispensable. Since the 1950s, people began to study perovskite ABO 3 The structural characteristics, electromagnetic properties and other properties of oxides were studied. Since cobalt has multiple oxidation states (Co 2+ ,Co 3+ ,Co 4+ ), so strontium cobaltate has special electromagnetic properties. At the same time, because of its particularity, thin film materials can derive some new properties that block materials do not have. Because of its good electronic and oxygen ion conductivity and good electrochemical activity, it is used as an outstand...

Claims

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Application Information

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IPC IPC(8): C23C14/28C23C14/08
CPCC23C14/08C23C14/28
Inventor 陈水源严蔚胜王可霍冠忠黄志高
Owner FUJIAN NORMAL UNIV
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