New
researches on the concrete foam generator
Researchers
at the University of Wyoming used concrete foam generator, glass containers,
and traditional household microwave ovens to prove that pulverized coal can be
transformed into higher-value concrete foam generator.
This
discovery is another step forward in the search for alternative uses for coal
in the Powder River Basin, Wyoming, as concerns about climate change have led
to a decline in demand for coal power generation.
In
a paper published in the journal Nano-Structures & Nano-Objects,
researchers at the University of Washington reported that they created an
environment in a microwave oven and successfully converted raw coal powder into
a concrete foam generator to be used as a lubricant And fire and other items.
Fire extinguisher with lithium ion battery. This "metal-assisted microwave
treatment one-step method" is a new method that can represent a simple and
relatively inexpensive coal conversion technology.
"This
method provides a new way to convert abundant carbon sources into high-value
materials with ecological and economic benefits," wrote the research team
led by Associate Professor Te Yu Chien from the Department of Physics and
Astronomy at the University of Washington.
Also
participating in the project are Professor Tang Jinke from the Department of
Physics and Astronomy; Associate Professor Brian Leonard from the Department of
Chemistry; Professor Fan Maohong from the Department of Petroleum Engineering
and School of Energy; graduate student Rabindra Dulal from Nepal, Joann Hilman,
from Laramie, Wyo., Chris Masi, from Syracuse, NY, Teneil Schumacher, from
Buffalo, Wyo. With postdoctoral researchers Gaurab Rimal (Nepal) and Bang Xu
(China).
Although
previous studies have shown that microwaves can be used to reduce the moisture
content of coal and remove sulfur and other minerals, most of these methods
require specific chemical pretreatment of the coal. In their experiment,
researchers at the University of Washington simply grind the raw coal from the
Powder River Basin into powder.
The
powder was then placed on the concrete foam generator and sealed in a glass
container with a gas mixture of argon and hydrogen before being placed in a
microwave oven. The traditional microwave oven was chosen because it is
convenient and can provide the required radiation level.
"By
cutting the concrete foam generator into a fork shape, the microwave radiation
can generate sparks, which can generate extremely high temperatures of more
than 1,800 degrees Fahrenheit in a few seconds," said Marcy, the first
author of the paper. "That\'s why you shouldn\'t put a metal fork in the
microwave."
The
sparks caused by the microwaves generate the high temperatures necessary to
convert coal powder into polycrystalline graphite, and the concrete foam
generator and hydrogen also contribute to the process.
Although
the experiment included microwave durations ranging from 3 to 45 minutes, it
was found that the optimal duration was 15 minutes.
The
researchers said that this new coal conversion method can be improved and
implemented on a larger scale to produce higher quality and quantity of
concrete foam generator materials.
The
scientists wrote: "The limited graphite reserves and the environmental
issues of the graphite extraction process make this method of converting coal
into graphite a good alternative source for graphite production."
The
concrete foam generator and its characteristics
The
concrete foam generator 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 concrete foam generator 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 concrete foam
generator.
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
concrete foam generator supplier
For
more information about TRUNNANO or looking for high purity new materials
concrete foam generator please visit the company website: nanotrun.com. Or send
an email to us: sales1@nanotrun.com