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A kind of titanium nitride powder based on low temperature liquid phase method and its preparation method

A low temperature liquid phase method, titanium nitride technology, applied in chemical instruments and methods, nitrogen compounds, inorganic chemistry, etc. Titanium product cost, cumbersome experimental process and other issues, to achieve the effect of rich raw materials, good crystal morphology, and improved diffusion rate

Inactive Publication Date: 2018-01-12
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The growth of titanium nitride whiskers produced by this method is greatly affected by the deposition temperature and gas volume, and it is difficult to mass produce
[0004] Most of the above methods require cumbersome experimental procedures and harsh experimental conditions, thus increasing the cost of titanium nitride products

Method used

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  • A kind of titanium nitride powder based on low temperature liquid phase method and its preparation method
  • A kind of titanium nitride powder based on low temperature liquid phase method and its preparation method

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Embodiment 1

[0023] A titanium nitride powder based on a low-temperature liquid phase method and a preparation method thereof. According to the molar ratio of metal magnesium powder: alkali metal inorganic salt: titanium dioxide powder is 1: (1.5 ~ 1.8): (0.25 ~ 0.40), metal magnesium powder, alkali metal inorganic salt and titanium dioxide powder are mixed to obtain mixed powder; The mixed powder is kept in a nitrogen atmosphere at 900-1100°C for 4-6 hours, cooled naturally to obtain a burnt product; then the burnt product is added to hydrochloric acid solution and soaked for 5-6 hours, washed with distilled water for 3-6 hours 5 times, drying at 90-110°C for 8-12 hours to obtain titanium nitride powder based on low temperature liquid phase method.

[0024] The alkali metal inorganic salt described in this embodiment is sodium chloride.

Embodiment 2

[0026] A titanium nitride powder based on a low-temperature liquid phase method and a preparation method thereof. The present embodiment is the same as embodiment 1 except that the alkali metal inorganic salt is magnesium chloride.

Embodiment 3

[0028] A titanium nitride powder based on a low-temperature liquid phase method and a preparation method thereof. The present embodiment is the same as embodiment 1 except that the alkali metal inorganic salt is a mixture of sodium chloride and magnesium chloride.

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Abstract

The invention relates to titanium nitride powder based on a low temperature liquid polymerization process and a preparation method of the titanium nitride powder. According to the technical scheme, the method comprises the following steps: mixing metal magnesium powder, alkali metal inorganic salts and titanium dioxide powder according to a molar ratio of 1:(1.5-2.0):(0.25-0.50); or mixing metal magnesium powder, alkali metal inorganic salts and sodium titanate powder according to a molar ratio of 1:(1.5-2.0):(0.06-0.08); respectively maintaining the temperature of respectively mixed powder for 2-6 hours in a nitrogen atmosphere and under the condition of 900-1300 DEG C, and naturally cooling; adding the fired product into a hydrochloric acid solution for soaking for 5-6 hours, washing 3-5 times by using distilled water, and drying for 8-12 hours under the condition of 90-110 DEG C, so as to obtain the titanium nitride powder based on the low temperature liquid polymerization process. The titanium nitride powder disclosed by the invention has the characteristics of rich raw materials, low production cost and simplicity in industrial production. The titanium nitride powder prepared by the method is high in purity and excellent in morphology characteristics.

Description

technical field [0001] The invention belongs to the technical field of titanium nitride powder. It specifically relates to a titanium nitride powder based on a low temperature liquid phase method and a preparation method thereof. Background technique [0002] Titanium nitride has a series of advantages such as high strength, high hardness, high temperature resistance, acid and alkali corrosion resistance, wear resistance, good electrical conductivity and thermal conductivity, and is widely used in the lining of cermets, cutting tools, and crucibles for melting metals materials, metal surface coating materials, bio-replacement materials, and electrode materials. In addition, titanium nitride nanomaterials also have potential application prospects in high-tech aspects such as materials chemistry and biochemistry. [0003] Currently, Haijun Zhang, et al. use tetrabutyl titanate and sucrose as raw materials to prepare titanium nitride powder (Haijun Zhang, Faliang Li, Quanli J...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/076
CPCC01B21/0761C01P2002/72C01P2004/03C01P2004/62
Inventor 丁军阚小清祝洪喜邓承继余超
Owner WUHAN UNIV OF SCI & TECH
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