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Preparation method of TiB2 powder

A system and powder technology, which is applied in the field of TiB2 powder preparation, can solve the problems of unfavorable material properties, long production cycle, easy powder agglomeration, etc., and achieve the effect of short synthesis time, high heating efficiency and low synthesis temperature

Pending Publication Date: 2022-04-05
ADVANCED FOR MATERIALS & EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] There have been many synthetic TiB 2 methods, such as gas phase reaction, electrothermal, chemical vapor deposition, combustion synthesis, etc., but these processes require higher temperature or longer production cycle, and the synthesized powder usually has coarser particles and lower purity, and the powder is easy to agglomerate, which is not conducive to improving the performance of the material

Method used

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  • Preparation method of TiB2 powder
  • Preparation method of TiB2 powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Configure boric acid mixed solution: press H 3 BO 3 (boric acid) and Ti(OC 4 h 9 ) 4 The boron-titanium molar ratio of (butyl titanate) is 4:1 and takes by weighing 2.472g H 3 BO 3 , press C 12 h 22 o 11 The carbon-titanium molar ratio of (sucrose) and butyl titanate is 6:1 and takes 1.71g C 12 h 22 o 11 , the H 3 BO 3 with C 12 h 22 o 11 Mix to get a mixture, add 10ml C to the mixture 2 h 5 OH (ethanol), heated to 70 ° C and stirred until the mixture was completely dissolved to obtain a mixed solution with a boric acid concentration of 4 mol / L, which was solution A;

[0035] (2) Configure organic titanium mixed solution: according to H 3 BO3 with Ti(OC 4 h 9 ) 4 The boron-titanium molar ratio is 4:1 and weighs 3.399gTi(OC 4 h 9 ) 4 ; Weigh 1.4g C 5 h 8 o 2 (acetylacetone), the C 5 h 8 o 2 Slowly added to the stirring Ti(OC 4 h 9 ) 4 In the organic titanium mixed solution is formed, which is solution B;

[0036] (3) Preparation of b...

Embodiment 2

[0042] (1) Configure boric acid mixed solution: press H 3 BO 3 with Ti(OC 4 h 9 ) 4 The boron-titanium molar ratio is 3.5:1 and weighs 2.163gH 3 BO 3 , press C 12 h 22 o 11 with Ti(OC 4 h 9 ) 4 The molar ratio of carbon to titanium is 5:1 to take 1.42g C 12 h 22 o 11 , the H 3 BO 3 with C 12 h 22 o 11 Mix to get a mixture, add 10ml C to the mixture 2 h 5 OH, heated to 70°C and stirred until the mixture was completely dissolved to obtain a mixed solution with a boric acid concentration of 4mol / L, which was solution A;

[0043] (2) Configure organic titanium mixed solution: according to H 3 BO 3 with Ti(OC 4 h 9 ) 4 The boron-titanium molar ratio is 4:1 and weighs 3.399gTi(OC 4 h 9 ) 4 ; Weigh 1.36g C 5 h 8 o 2 , the C 5 h 8 o 2 Slowly added to the stirring Ti(OC 4 h 9 ) 4 In the organic titanium mixed solution is formed, which is solution B;

[0044] (3) Preparation of boron-titanium mixed sol: put solution A in an ultrasonic stirrer, pour ...

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Abstract

The invention discloses a preparation method of TiB2 powder. The preparation method comprises the following steps: preparing a boric acid mixed solution; preparing an organic titanium mixed solution; preparing boron-titanium mixed sol; preparing boron-titanium mixed gel; preparing a TiB2 precursor; and preparing the TiB2 powder. The TiB2 powder is synthesized by adopting the vacuum microwave oven, and the method has the advantages of low synthesis temperature, short synthesis time, high energy utilization rate, high heating efficiency, easiness in operation, no pollution and mild synthesis conditions.

Description

technical field [0001] This application relates to the technical field of powder preparation, in particular to a TiB 2 Powder preparation method. Background technique [0002] Titanium diboride (TiB 2 ) has the advantages of high melting point, high elastic modulus, high hardness, high electrical conductivity, high thermal conductivity, low thermal expansion coefficient, good wear and corrosion resistance, and chemical stability, and is not only a high-potential ceramic material, It can also be added to the alloy as a strengthening particle to form a composite material and improve the performance of the alloy. TiB 2 Whether it is used in the field of ceramic materials or composite materials, the microstructure and mechanical properties of materials will be affected by TiB 2 The effect of powder properties and therefore on TiB 2 The activity, purity, and particle size of the powder put forward higher requirements, and it is necessary to prepare TiB with high activity, hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B35/04
Inventor 戴煜谭兴龙舒忠良朱晨光
Owner ADVANCED FOR MATERIALS & EQUIP
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