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Novel method for depositing diamond film on surface of stainless steel

A diamond film and surface deposition technology, which is applied in metal material coating process, gaseous chemical plating, coating, etc., can solve the problem that the bonding force of diamond film cannot be taken into account at the same time, the increase of uncontrollable factors affecting each other, and the nucleation rate of diamond film Low-level problems, to achieve the effect of easy control of experimental operating conditions, reduction of thermal expansion coefficient difference, and enhanced mechanical properties

Active Publication Date: 2018-02-27
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both the single transition layer and the multi-layer transition layer have problems. The bonding force between the single transition layer and the substrate and the diamond film cannot be taken into account at the same time, and the nucleation rate of the diamond film is low.
The preparation process of the multi-layer transition layer is complicated, the industrialization is difficult, the uncontrollable factors of the interaction between the layers increase, and the fault phenomenon will appear

Method used

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  • Novel method for depositing diamond film on surface of stainless steel
  • Novel method for depositing diamond film on surface of stainless steel
  • Novel method for depositing diamond film on surface of stainless steel

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Experimental program
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Effect test

Embodiment 1

[0041] 3Cr13 stainless steel was selected as the base material, and the steel plate was cut into block samples with a size of 10mm×10mm×3mm by wire-cutting technology, and then polished with sandpaper on a polishing machine, and then the samples were pretreated: first, ultrasonic vibration in acetone for 20 minutes, then no Sonicate in water and ethanol for 20 minutes, and finally take out the sample, dry it, and set it aside. Then proceed to the preparation of the CrSiN transition layer. The magnetron sputtering equipment was developed by the Chinese Academy of Sciences, and the JGP-450 fast ion coating apparatus manufactured by Zhongke Instrument (Shenyang) Co., Ltd. The experimental parameters are: argon gas flow rate 15 sccm, substrate temperature 350°C, bias voltage 120V. Carry out the sputtering of Cr transition layer, sputtering time is 15min; Regulate nitrogen flow to 5sccm, regulate working pressure to 0.8Pa, carry out the sputtering of CrSiN transition layer in the ...

Embodiment 2

[0044] The base material is 3Cr13 stainless steel, and the steel plate is cut into 10mm×10mm×3mm block samples by wire-cutting process, and then polished with sandpaper on a polishing machine, and then the samples are pretreated: first, ultrasonic vibration in acetone for 20 minutes, then no Sonicate in water and ethanol for 20 minutes, and finally take out the sample, dry it, and set it aside. Then proceed to the preparation of the CrSiN transition layer. The magnetron sputtering equipment was developed by the Chinese Academy of Sciences, and the JGP-450 fast ion coating apparatus manufactured by Zhongke Instrument (Shenyang) Co., Ltd. The experimental parameters are: the flow rate of argon gas is 20 sccm, the substrate temperature is 300° C., and the bias voltage is 100 V. Carry out the sputtering of Cr transition layer, sputtering time is 30min, adjust nitrogen flow to 7sccm, regulate working pressure to 0.8Pa, carry out the sputtering of CrSiN transition layer in the mixe...

Embodiment 3

[0047] 3Cr13 stainless steel was selected as the base material, and the steel plate was cut into block samples with a size of 10mm×10mm×3mm by wire-cutting technology, and then polished with sandpaper on a polishing machine, and then the samples were pretreated: first, ultrasonic vibration in acetone for 20 minutes, then no Sonicate in water and ethanol for 20 minutes, and finally take out the sample, dry it, and set it aside. Then proceed to the preparation of the CrSiN transition layer. The magnetron sputtering equipment was developed by the Chinese Academy of Sciences, and the JGP-450 fast ion coating apparatus manufactured by Zhongke Instrument (Shenyang) Co., Ltd. The experimental parameters are: argon gas flow rate 30 sccm, substrate temperature 400°C, bias voltage 150V. Carry out the sputtering of Cr transition layer, sputtering time is 30min; Regulate nitrogen flow to 7sccm, regulate working pressure to 0.8Pa, carry out the sputtering of CrSiN transition layer in the ...

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Abstract

The invention discloses a novel method for depositing a diamond film on the surface of stainless steel. The novel method comprises the following steps that 1), a novel transition layer is firstly sputtered on a stainless steel substrate by adopting a magnetron sputtering method; and 2), the diamond film is grown on the transition layer by adopting a hot-filament chemical vapor deposition method, wherein ultrasonic oscillating is carried out for 30 minutes in diamond powder suspension, then the diamond film deposition is carried out, finally, the diamond film is slowly cooled to the room temperature, and the continuous and compact diamond film can be prepared on the surface of the stainless steel.

Description

technical field [0001] The invention relates to a method for depositing a continuous and dense diamond film on the surface of stainless steel by utilizing a novel transition layer. Background technique [0002] Diamond has excellent properties, such as good chemical stability and biocompatibility, excellent mechanical properties and thermal conductivity, so diamond is an ideal coating material. Due to its good comprehensive performance, stainless steel is widely used in daily life. Stainless steel products involve various aspects such as instruments and meters, mechanical equipment, tableware and kitchen utensils. However, the cost of stainless steel products is high, and the failure will cause huge losses during use. Therefore, it is necessary to improve its corrosion resistance and wear resistance in order to prolong the service life of the product. Combining the excellent properties of stainless steel and diamond will greatly expand the application field of stainless st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/27C23C16/02
CPCC23C16/0272C23C16/271
Inventor 胡晓君吕枫李晓冯涛陈建清
Owner ZHEJIANG UNIV OF TECH
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