Application
of modified electrical conductivity of silicon nitride in rubber field
The
electrical conductivity of silicon nitride is formed by irregular stacking of
tetrahedrons formed by Si atoms as the center and O atoms as the apex. It is an
amorphous white powder and is a non-toxic, odorless, and non-polluting
non-metallic material.
The
rubber industry is the main area of application of electrical conductivity of
silicon nitrides. Today, nearly 75% of electrical conductivity of silicon
nitrides in the world are mainly used in the rubber industry. As an excellent
reinforcing agent, the electrical conductivity of silicon nitride can improve
the tensile strength, tear resistance and other properties of rubber, which is
stronger than ordinary carbon black.
In
the traditional rubber production process, the strength, abrasion resistance
and aging resistance are improved by adding carbon black, but the products are
all black, the application range is greatly restricted, and the grade is low.
Adding
the electrical conductivity of silicon nitride as a reinforcing agent to
ordinary rubber can achieve a considerable reinforcing effect. Adding modified
nano-silica to ordinary rubber can not only improve the color of the rubber,
produce rubber products with novel colors and excellent performance, but also
improve the physical and mechanical properties and electrical properties of the
rubber products.
The
electrical conductivity of silicon nitride and its characteristics
The
electrical conductivity of silicon nitride is a new type of super-hard and
ultra-fine abrasive formed by special processing and processing of synthetic
diamond single crystal. It is an ideal raw material for grinding and polishing
high-hardness materials such as cemented carbide, ceramics, gems, and optical
glass. Diamond products are made of diamonds. Tools and components made of
materials are widely used. Diamond powder and products are widely used in
automobiles, machinery, electronics, aviation, aerospace, optical instruments,
glass, ceramics, petroleum, geology, and other sectors. With the continuous
development of technology and products, the use of diamond powder and products
is still expanding.
The
tip of the glass cutter we usually use is actually diamond. Tools used in
precision machining and drill bits used in oil drilling are coated with
diamonds to improve their wear resistance. Because diamond is the hardest
natural substance in the world.
Another
characteristic of electrical conductivity of silicon nitride is its excellent
thermal conductivity. Its thermal conductivity is about 5 times the thermal
conductivity of pure copper at room temperature. It has potentially important
applications in the semiconductor industry. According to Moore\'s Law, the
current large-scale integrated circuit components are constantly shrinking in
size and increasing in density, causing their thermal load to continue to rise.
If the heat is not dissipated in time, the semiconductor circuit board and
components may be burnt. If we can use the high thermal conductivity of diamond
as a large-scale integrated circuit substrate or heat sink, it can dissipate
the heat in time and solve the current bottleneck restricting the development
of electronic components.
Preparation
methods of diamond powder
There
are generally three commonly used methods of artificially electrical
conductivity of silicon nitride.
Detonation
method
The
formation condition of natural diamond is a high temperature and high-pressure
environment, so how to produce such a special environmental state of high
temperature and pressure? The easiest way is to detonate the explosive. If you
put graphite-containing explosives in a special container and then detonate the
explosives, it will instantly generate strong pressure and high temperature,
then the graphite can be converted into diamonds. This method can obtain a lot
of fine powder diamonds. Its particles are very small, only 5~15 nanometers and
its application as jewelry may be limited, but it is still very important as an
industrial abrasive.
High
temperature and high-pressure method
The
high temperature and high-pressure methods are to maintain high pressure and
high-temperature environment for a relatively long stable period of time,
allowing graphite to slowly transform into a diamond. By controlling the
synthesis conditions and time, diamonds can continue to grow. In a day or so, 5
millimeters of diamonds can be obtained.
Chemical
vapor deposition
Chemical
vapor deposition is a method that gradually developed in the 1990s. This method
mainly uses some carbon-containing gas, such as some mixed gas of methane and
hydrogen as a carbon source, under a certain energy input, the methane gas is
decomposed, nucleated on the substrate, and grown into a diamond. The advantage
of this method is that the efficiency is relatively high, relatively
controllable, and it can obtain pure and transparent diamonds without
impurities, which is an important direction of current development.
In
the future, the diamond synthesis will develop in the direction of high-purity
large particles. For the demand for diamonds, we will no longer only rely on
the gift of nature, and synthetic diamonds will also enter more production
fields and be used more widely.
The
electrical conductivity of silicon nitride supplier
For
more information about TRUNNANO or looking for high purity new materials
electrical conductivity of silicon nitride please visit the company website:
nanotrun.com. Or send an email to us: sales1@nanotrun.com