Friends in life, in medicine and other places, will apply this ceramic film , then what is ceramic film? Our friends do not know now, let Xiaobian tell me, ceramic pieces are not a single type And there are many advantages, and the scope of use is very wide, so friends read our following article to understand how the ceramic piece is, and friends will help them in the future.
First, the type of ceramic film
1, optical functional ceramics
In terms of photofunctional ceramics: Nanoparticles have optical properties that are not available in conventional bulk materials due to the small size effect. For example, optical nonlinearity, light absorption, light reflection, light transmission characteristics, and the like are all related to the size of the nanoparticles. Academician Hong Maojun of the Fujian Institute of Physical Education of the Chinese Academy of Sciences used nanotechnology to research and develop optically functional ceramic materials with excellent performance, focusing on three interrelated correlations between sintered transparent ceramics, nanostructured oxyfluoride glass ceramics and borate glass ceramics. Material system.
The nano absorbing ceramic material currently under development not only has good absorbing properties, but also features rich functions, frequency bandwidth, material saving and light weight. Nano-ceramic absorbing materials mainly include Sic and composites, Si/C/N, Si/C/N/O, etc. The main components are silicon carbide, silicon nitride and amorphous carbon, which have high temperature resistance, light weight and strength. Large, good absorbing performance and so on. In particular, the Si/C/N absorbing material not only has the above advantages, but also has a wide temperature range (can be used from room temperature to 1000 ° C), small amount, adjustable dielectric properties, and can effectively reduce the infrared radiation signal. characteristic.
2, electrical functional ceramics
In terms of electrical functional ceramics: nano-ceramics prepared by nanotechnology have excellent electrical properties, and can be used to make conductive materials, insulating materials, electrodes, superconductors, quantum devices, electrostatic shielding materials, pressure sensitive and non-linear resistors, and thermoelectric and Dielectric materials, etc. For example with nano
(70nm) ceramics have a room temperature dielectric constant of 30,000 or more, and can be used in the manufacture of modern electronic components such as ultra-small and large-capacity ceramic multilayer capacitors (MLC). Through the research on nano-ZnO ceramics, it is found that it has a strong interfacial effect, and has excellent properties such as high conductivity, transparency and transmission rate. Its effective dielectric constant is 5-10 times higher than that of ordinary ZnO ceramics, and It has nonlinear volt-ampere characteristics and can be used in the manufacture of piezoelectric devices, ultrasonic sensors, solar cells, and the like.
Second, the characteristics of ceramic tablets
1, electrical performance
Insulation resistance: R≥5×108Ω [500VDC]
Rated applied voltage: 220VAC/110VAC
Resistance: R + 10% (23 + 1 ° C) or according to user contract requirements.
2, aging test: apply 110% of the rated voltage, a diode in series, on and off for 3 minutes for a cycle, a total of 2 cycles without abnormalities.
3, voltage boost test: respectively add 130VAC, 250VAC voltage, a diode in series, the heating sheet is energized within 10 seconds of each voltage without abnormalities. [Applicable to 230VAC heating sheet]
4, thermal test: under normal voltage, the heating substrate is evenly heated, no abnormalities.
5, physical properties
Body density ≥ 3.6g/cm3
Bending strength ≥ 260MPa
6. Lead tension: the axial direction is not less than 5Kgf, and the angle between the axis and the axis is not less than 3Kgf.
7, temperature performance:
Operating temperature 100 ~ 230 ° C: The highest temperature can reach 500 ~ 700 ° C.
8, heating efficiency: up to 30 seconds to reach the working temperature.
9. Reliability: 30 minutes after installation, 30 minutes for a cycle, no abnormality after 1000 cycles.
The introduction of this ceramic piece is that our ceramic film has the advantages and types, and it is widely used. It is an important thing that our friends need. Our ceramic film has some characteristics that our friends can consider. Our home decoration network will also bring more decorative information to friends, and friends will pay attention to our website.
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