Take you to understand the top ten characteristics of titanium metal

In magnetron sputtering process, titanium target is One of the commonly used target materials, titanium target not only has good adhesion, but also can produce various beautiful colors by adding suitable reaction gases to titanium target. Let me take a look at the characteristics and advantages of titanium.

Firstly, titanium targets can be made in many colors, such as titanium gray, gun gray, black, imitation gold, coffee, blue, purple, and many more. If you have any new colors, please leave a message to add.

Secondly, titanium has good adhesion and also has excellent adhesion to ceramic and glass substrates, so titanium can be used as a base film material for films with poor adhesion. Titanium can also be used as a material for making thin film resistors or capacitors.

3. Titanium has strong adsorption properties for active gases such as CO, CO2, N2, O2, and water vapor above 650 ℃. The fresh Ti film evaporated on the mercury wall forms a high adsorption surface with excellent gas absorption performance, and can react chemically with almost all gases except inert gases. This property enables Ti to It has been widely used as a suction agent in vacuum pumping systems, such as in titanium sublimation pumps, sputtering ion pumps, etc.

4. Corrosion resistance: Titanium is a very active metal with a low equilibrium potential and a high tendency for thermodynamic corrosion in the medium. But in reality, titanium is very stable in many media, such as oxidizing, neutral, and weakly reducing media, where it is corrosion-resistant. This is because titanium has a great affinity for oxygen. In air or oxygen-containing media, a dense, highly adhesive, and inert oxide film is formed on the surface of titanium, which protects the titanium substrate from corrosion. Even due to mechanical wear, it will quickly self heal or regenerate. This indicates that titanium is a metal with a strong tendency towards passivation. The oxide film of titanium always maintains this characteristic when the medium temperature is below 315 ℃. Titanium has a metallic luster and ductility. The density is 4.5 grams per cubic centimeter. Melting point 1660 ± 10 ℃. Boiling point 3287 ℃. Valence+2,+3, and+4. The ionization energy is 6.82 electron volts. The main characteristics of titanium are low density, high mechanical strength, and easy processing. The plasticity of titanium mainly depends on its purity. The purer the titanium, the greater its plasticity. Has good corrosion resistance and is not affected by the atmosphere and seawater. At room temperature, it will not be corroded by hydrochloric acid below 7%, sulfuric acid below 5%, nitric acid, aqua regia or dilute alkaline solutions; Only hydrofluoric acid, concentrated hydrochloric acid, concentrated sulfuric acid, etc. can act on it.

5. Titanium has a "biophilic" property. In the human body, it can resist the corrosion of secretions and Adapt to any method. Therefore, it is widely used in the production of medical devices, artificial hip joints, knee joints, shoulder joints, rib joints, skull bones, active heart valves, and bone fixation clips. When new muscle fiber rings wrap around these 'titanium bones', they begin to maintain normal human activity. Titanium is a non-magnetic metal and will not be magnetized in large magnetic fields And it has good compatibility with human tissues and blood, so it is adopted by the medical industry.

6. Good heat resistance and low temperature resistance.

The new titanium alloy can be used for a long time at temperatures of 600 ℃ or higher. Low temperature titanium alloys represented by titanium alloys TA7 (Ti-5Al-2.5Sn), TC4 (Ti-6Al-4V), and Ti-2.5Zr-1.5Mo show an increase in strength with decreasing temperature, but little change in plasticity. It maintains good ductility and toughness at low temperatures of -196-253 ℃, avoiding metal cold brittleness, and is an ideal material for low-temperature containers, storage tanks, and other equipment.

7. Strong anti damping performance

Compared with steel and copper metals, titanium metal has a longer decay time of its own vibration after being subjected to mechanical and electrical vibrations Long. The performance of titanium can be used as a tuning fork, a vibrating element for ultrasonic crushers in medicine, and more Vibration film of audio speakers, etc.

8. The tensile strength is close to its yield strength

The performance of titanium indicates that its yield strength ratio (tensile strength/yield strength) is high, indicating poor plastic deformation of metallic titanium materials during forming. Due to the high ratio of the yield limit to the elastic modulus of titanium, it has a greater ability to rebound during molding.

9. Good heat transfer performance

Although the thermal conductivity of titanium metal is lower than that of carbon steel and copper, due to its excellent corrosion resistance, the wall thickness can be greatly reduced. Moreover, the heat exchange between the surface and steam is droplet condensation, which reduces the heat group. The non scaling of titanium surface can also reduce thermal resistance, significantly improving the heat transfer performance of titanium.

10. Low elastic modulus

The elastic modulus of titanium at room temperature is 106.4GPa, which is 57% of that of steel.

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