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Preparation method of zirconium carbide/hafnium carbide nano composite particles

A nanocomposite, zirconium carbide technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of large environmental pollution of intermediate products, complicated preparation process, etc., and achieve low cost and process. Simple, simple process and environmentally friendly effect

Inactive Publication Date: 2021-03-12
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of zirconium carbide / hafnium carbide nanocomposite particles, which solves the problems of complex preparation process and large environmental pollution of intermediate products in the prior art, and is more suitable for large-scale industrial production

Method used

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  • Preparation method of zirconium carbide/hafnium carbide nano composite particles
  • Preparation method of zirconium carbide/hafnium carbide nano composite particles
  • Preparation method of zirconium carbide/hafnium carbide nano composite particles

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Embodiment 1

[0033] A method for preparing zirconium carbide / hafnium carbide nanocomposite particles, specifically implemented according to the following steps:

[0034] Step 1, weigh 6.5g of ZrOCl 2 ·8H 2 O, add 20mL of deionized water, stir until completely dissolved to obtain a colorless transparent solution, and add 2.0g of glucose and 3.60g of HfOCl in turn to the colorless and transparent solution 2 Suspension, HfOCl 2 When adding the suspension, add it drop by drop, and get a white suspension solution 1 after stirring evenly;

[0035] Step 2. Weigh tartaric acid with a mass of 0.75 g, add 5 mL of deionized water, and stir until completely dissolved to obtain a colorless and transparent solution 2;

[0036] Step 3. Add the colorless and transparent solution 2 obtained in step 2 to the white suspension solution 1 obtained in step 1, and continue to stir for 30 minutes until the mixture is uniform, and obtain the white suspension solution 2;

[0037] Step 4. Perform rotary evaporat...

Embodiment 2

[0040] A method for preparing zirconium carbide / hafnium carbide nanocomposite particles, specifically implemented according to the following steps:

[0041] Step 1, weigh 8g of ZrOCl 2 ·8H 2 O, add 20mL deionized water, stir until completely dissolved to obtain a colorless and transparent solution, add 2.5g of glucose and 4.20g of HfOCl in turn to the colorless and transparent solution 2 Suspension, HfOCl 2 When adding the suspension, add it drop by drop, and get a white suspension solution 1 after stirring evenly;

[0042] Step 2. Weigh 1.00 g of tartaric acid, add 6 mL of deionized water, and stir until completely dissolved to obtain a colorless and transparent solution 2;

[0043] Step 3. Add the colorless and transparent solution 2 obtained in step 2 to the white suspension solution 1 obtained in step 1, and continue to stir for 30 minutes until the mixture is uniform, and obtain the white suspension solution 2;

[0044] Step 4. Rotate the white suspension solution 2 o...

Embodiment 3

[0047] A method for preparing zirconium carbide / hafnium carbide nanocomposite particles, specifically implemented according to the following steps:

[0048] Step 1, weigh 9.0g of ZrOCl 2 ·8H 2 O, add 25mL of deionized water, stir until completely dissolved to obtain a colorless transparent solution, and add 3.0g of glucose and 4.80g of HfOCl in turn to the colorless and transparent solution 2 Suspension, HfOCl 2 When adding the suspension, add it drop by drop, and get a white suspension solution 1 after stirring evenly;

[0049] Step 2. Weigh 1.25 g of tartaric acid, add 7 mL of deionized water, and stir until completely dissolved to obtain a colorless and transparent solution 2;

[0050] Step 3. Add the colorless and transparent solution 2 obtained in step 2 to the white suspension solution 1 obtained in step 1, and continue to stir for 30 minutes until the mixture is uniform, and obtain the white suspension solution 2;

[0051] Step 4. Perform rotary evaporation on the w...

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Abstract

The invention discloses a preparation method of zirconium carbide / hafnium carbide nano composite particles. The preparation method is specifically implemented according to the following steps: 1, preparing a zirconium salt solution system; 2, preparing a tartaric acid solution system; 3, preparing a ZrC / HfC mixed system; 4, preparing a ZrC / HfC organic composite precursor through rotary evaporation; 5, preparing ZrC / HfC nanoparticles through high-temperature sintering. The zirconium carbide nano composite particles prepared by the method disclosed by the invention are simple in preparation process, low in cost and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of high-temperature ceramic materials, and relates to a preparation method of zirconium carbide / hafnium carbide nanocomposite particles. Background technique [0002] Zirconium carbide / hafnium carbide (ZrC / HfC) ceramics have high melting point, high thermal conductivity, high electrical conductivity, high specific strength, high specific modulus, high hardness and good chemical stability, so they have great potential in the field of ultra-high temperature structural materials. Widely used: ultra-high temperature insulation coating, high temperature refractory materials, etc. And the preferred method for the preparation of the precursor is organic synthesis. However, this method has disadvantages such as high cost of raw materials, complex preparation process, excessive toxicity of precursors, and difficult storage of products. Therefore, the study of ZrC / HfC ceramic precursors with simple preparation proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/56C04B35/626B82Y30/00B82Y40/00
CPCC04B35/5622C04B35/626B82Y30/00B82Y40/00
Inventor 赵康王嘉焦华张鑫媛靳洁晨汤玉斐李福平宋森王博文
Owner XIAN UNIV OF TECH
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