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Super fine titanium carbonitride powder and its preparing method

A technology of titanium nitride powder and titanium hydride, applied in chemical instruments and methods, nitrogen compounds, inorganic chemistry, etc., can solve problems such as difficult mass production, polluting the production environment, and low production efficiency, and achieve high efficiency in production and tertiary production , The production process is simple and the cost is low

Inactive Publication Date: 2007-04-11
SHENYANG LIGONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a simple production process, safe and environmentally friendly, and non-polluting to the existing technical problems in the preparation of titanium carbonitride powder, such as polluting the production environment, high raw material costs, difficulty in mass production, and low production efficiency. And the production of ultra-fine titanium carbonitride powder and its preparation method with wide sources of raw materials, high production efficiency and low cost is suitable for large-scale production

Method used

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  • Super fine titanium carbonitride powder and its preparing method
  • Super fine titanium carbonitride powder and its preparing method

Examples

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example 1

[0023] Ingredients by weight percentage, starch is 17.2%, titanium hydride is 82.8%, in the polyurethane ball mill tank, with 95% ethanol as medium, with ZrO 2 The ball-to-material ratio is 5:1, and the ball-milling time is 24 hours. The ingredients after ball milling were dried at 60°C, then loaded into a graphite boat, and kept at a constant temperature of 1750°C for 2 hours in a self-made carbon tube furnace. 2 atmosphere (N 2 The red-brown Ti(C,N) ultrafine titanium carbonitride powder was synthesized at high temperature at a flow rate of 3ml / min.

example 2

[0025] Ingredients by weight percentage, starch is 20.6%, titanium hydride is 79.4%, in polyurethane ball mill tank, with 95% ethanol as medium, with ZrO 2 The ball-to-material ratio is 5:1, and the ball-milling time is 24 hours. The ingredients after ball milling were dried at 60°C, then loaded into a graphite boat, and kept at 1700°C for 2 hours in a self-made carbon tube furnace, and then heated under N 2 atmosphere (N 2 The red-brown Ti(C,N) ultrafine titanium carbonitride powder was synthesized at high temperature at a flow rate of 3ml / min.

example 3

[0027] Ingredients by weight percentage, starch is 13.5%, titanium hydride is 86.5%, in the polyurethane ball mill tank, with 95% ethanol as medium, with ZrO 2 The ball-to-material ratio is 5:1, and the ball-milling time is 24 hours. The ingredients after ball milling were dried at 60°C, then loaded into a graphite boat, and kept at 1800°C for 2 hours in a self-made carbon tube furnace. 2 atmosphere (N 2 Brown-red Ti(C,N) ultrafine titanium carbonitride powder was synthesized at high temperature at a flow rate of 6ml / min.

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Abstract

The superfine titanium carbonitride powder and its preparation process belong to the field of nanometer ceramic material preparing technology. The present invention prepares superfine titanium carbonitride powder with starch or cane sugar as carbon source in 5-30 wt%, titanium hydride as titanium source in 70-95 wt% and nitrogen for the rest, and through the technological process including the steps of compounding material, ball milling, drying, sintering and powdering. The present invention has simple production process, environment friendship, high production efficiency, low production cost and other advantages, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of nano ceramic powder preparation, and in particular relates to an ultrafine titanium carbonitride powder and a preparation method thereof. Background technique [0002] Titanium carbonitride is a non-oxide material with excellent performance and wide application. It has high melting point, high hardness, good corrosion resistance and oxidation resistance. Features, suitable for many fields such as mechanization, automobile manufacturing and aerospace. Ti(C,N) materials are widely used in metal cutting tools. Ti(C,N)-based cemented carbide tools have high strength, high hardness, good oxidation resistance, and high thermal conductivity. In metal cutting, Ti(C,N) can also generate relatively high free enthalpy, which increases its resistance to the formation of cutting nodules, peeling and pits. Therefore, the high-speed grinding of Ti (C, N)-based cemented carbide tools is superior to the workpieces proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/30C01B21/00C04B35/58C04B35/626
Inventor 李喜坤修雅萌孙旭东赵海涛于洪浩付岩
Owner SHENYANG LIGONG UNIV
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