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Method for preparing submicron NaNbO3 ceramic powder at low temperature

A ceramic powder, submicron technology, applied in the field of low temperature preparation of submicron NaNbO3 ceramic powder, can solve the problems of complex process and high manufacturing cost, and achieve the effects of simple process, low equipment requirements and low synthesis temperature

Inactive Publication Date: 2013-08-14
陕西光电子先导院科技有限公司
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  • Abstract
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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a low-temperature preparation of submicron NaNbO 3 The method

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  • Method for preparing submicron NaNbO3 ceramic powder at low temperature
  • Method for preparing submicron NaNbO3 ceramic powder at low temperature
  • Method for preparing submicron NaNbO3 ceramic powder at low temperature

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Embodiment Construction

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0019] figure 1 The low temperature preparation of submicron NaNbO provided by the present invention is shown 3 The flow of the method of ceramic powder. For the convenience of description, only the parts related to the present invention are shown.

[0020] The low temperature preparation of submicron NaNbO of the present invention 3 The method of ceramic powder, the low temperature preparation of submicron NaNbO 3 The method of ceramic powder includes the following steps:

[0021] Preparation of stable niobium oxalate solution;

[0022] Dissolve anhydrous sodium carbonate in deionized water;

[0023] Prepar...

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Abstract

The invention discloses a method for preparing submicron NaNbO3 ceramic powder at low temperature. The method comprises the following steps of: preparing a stable niobium oxalate solution; dissolving anhydrous sodium carbonate in deionized water; preparing a NaNbO3 precursor solution; and obtaining the NaNbO3 pure phase. The method disclosed by the invention is simple in process, low in requirements for equipment, low in synthesis temperature, short in thermal insulation time, low in energy consumption, and cheap in required material, the prepared powder has the characteristics of good crystalline grain development degree, fine granularity, and very light aggregation, and phase formation temperature is especially low.

Description

technical field [0001] The invention belongs to the technical field of chemical material manufacturing, in particular to a low-temperature preparation of submicron NaNbO 3 The method of ceramic powder. Background technique [0002] NaNbO 3 It is a very important lead-free piezoelectric material, NaNbO prepared by traditional solid-phase method 3 Due to the large grain size, the material has antiferroelectricity at room temperature. The study found that when NaNbO 3 The grain size of the material is between 400-200nm (submicron), NaNbO 3 Powder structure corresponds to Pmc2 1 space group, in this case, NaNbO 3 The material exhibits ferroelectric properties, so the preparation of submicron NaNbO 3 Powder materials are of great significance. At present, submicron NaNbO is prepared at home and abroad. 3 The methods of powder materials include solid phase method, co-firing method, hydrothermal method, polymerization without precursor method, molten salt method, and solid p...

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Application Information

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IPC IPC(8): C04B35/495C04B35/626
Inventor 刘维红苗瑞霞李永锋张博商世广赵萍
Owner 陕西光电子先导院科技有限公司
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