An electrode device for detecting the electrochemical performance of porous coating materials

A porous coating and electrode device technology, applied in the field of material performance testing equipment, can solve the problems of different electrolyte temperature and substrate temperature, affecting the pore structure and porosity of the coating, affecting the accuracy of the detection results, etc., so as to avoid detection errors. Accuracy, good thermal conductivity and long service life

A porous coating and electrode device technology, applied in the field of material performance testing equipment, can solve the problems of different electrolyte temperature and substrate temperature, affecting the pore structure and porosity of the coating, affecting the accuracy of the detection results, etc., so as to avoid detection errors. Accuracy, good thermal conductivity and long service life

CN105928866BActive Publication Date: 2018-10-09SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • An electrode device for detecting the electrochemical performance of porous coating materials
  • An electrode device for detecting the electrochemical performance of porous coating materials
  • An electrode device for detecting the electrochemical performance of porous coating materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] According to the design of each component of the electrode device for detecting the electrochemical performance of the porous coating material, it is processed in the best implementation mode, and processed into a suitable size according to the actual detection environment, as follows:

[0057] Front gland 1: It is a cylindrical shape with one end and one open made of polytetrafluoroethylene, with a total length of 30mm, an outer diameter of 40mm, and an inner diameter of 20mm. Electrochemical experiments carried out. The outer wall is provided with knurling to facilitate rotation installation. A metal protective sleeve is embedded in the opening, and the protective sleeve has an M20 internal thread with a thread length of 20mm. With the design of embedded metal protective sleeve, the front end of the conductive column 2 of M20 can be directly threaded. The threaded metal protective sleeve used can provide good stability under high-strength stress environment after re...

Embodiment 2

[0066]The electrode device with the electrochemical properties of the porous coating material prepared in Example 1 was used to carry out a corrosion comparison experiment to verify the reliability of the device. The principle of the experiment is to conduct a corrosion comparison experiment in physiological saline simulating the human environment by installing a titanium sheet with a thickness of 1mm and a diameter of 14mm. Observe the surface morphology of the titanium sheet before and after the experiment and compare the experimental results. The electrolyte is physiological saline with a mass concentration of 0.9%; the power supply is a 30V DC power supply; the sample is a titanium sheet with a thickness of 1mm and a diameter of 14mm; other devices use existing coating materials such as electrochemical experiment electrode molds and temperature display gauges.

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Abstract

The invention discloses an electrode device for detecting the electrochemical performance of a porous coating material. The electrode device comprises a front gland, a conductive column and a back protection base. Two communicated blind holes are formed in the back protection base, one blind hole is an electrode installation hole where the conductive column is installed, and the other blind hole is a wiring hole where a wire or a conductor is led out. The back end of the conductive column is detachably installed in the electrode installation hole, and the front end of the conductive column is sleeved with the front gland and detachably connected with the front gland. The front gland is in a cylinder shape with an opening in one end, and the opening of the cylinder shape is detachably connected with the front end of the conductive column. A through hole is formed in the bottom face of the cylinder shape to serve as a detection opening. A sample anti-leakage sealing ring is further arranged on the bottom face of the cylinder shape and provided with a through hole matched with the detection opening in size. By means of the electrode device, side leakage of electrolytes can be effectively prevented, temperature changes of a tested electrode can be monitored in real time, the detection result is accurate, use is convenient, and detection accuracy is high.

Description

technical field [0001] The invention belongs to the field of material performance testing equipment, in particular to an electrode device for testing the electrochemical performance of porous coating materials. Background technique [0002] With the aging of the population, the increase of diseases and various accidents, the clinical demand for various biological implant materials is increasing. At present, human implant materials have been widely used in artificial joints, artificial bones, artificial dentures, oral restoration and heart surgery. The metal implants used earlier were made of stainless steel, such as the original 304 stainless steel and the later 316 immortal steel, as well as titanium alloys used in large quantities. But all metals currently face a huge problem when implanted into the human body-poor surface bioactivity, and the elastic modulus of the material does not match that of bone tissue. In order to solve this problem, the solution of material surf...

Claims

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Application Information

Patent Timeline
09 Oct 2018
Publication
CN105928866B
IPC
G01N17/02; G01N27/30
CPC
G01N17/02; G01N27/30
Inventors
附青山; 陈建