Carbon has a variety of allotropes, such as graphite, diamond (diamond), fullerenes, carbon nanotubes, graphene, glassy carbon, etc., in which graphite can be converted into superhard diamond under pressure.
In the new study, Zhao Zhisheng and another correspondent, Professor Tian Yongjun from Yanshan University and others used glassy carbon as raw material to synthesize new carbon allotropes using high-pressure but relatively mild temperature conditions. It is obtained from glass-carbon compression and retains some of the characteristics of glassy carbon, which the researchers named "compressed glassy carbon."
Zhao Zhisheng said that some people have studied the high-pressure transformation of glassy carbon at room temperature or high temperature, but the carbon material produced has changed back to glassy carbon after pressure relief. Under high-pressure and high-temperature conditions, glassy carbon is directly converted into diamond. . The latest research is to apply high pressure to glassy carbon at moderate temperatures, which can phase change the glassy carbon to form a new carbon material, and the temperature is not enough to make it into diamond.
According to reports, compressed glass carbon has the following characteristics: it is a lightweight material similar to graphite, uniaxial compression strength is more than 5 times that of ordinary metal and alloy materials, and is much larger than general ceramic materials; specific strength (ie strength-to-weight ratio) Very high, more than twice the carbon fiber, polycrystalline diamond, silicon carbide and boron carbide ceramics; extremely high hardness, can easily scribe high-hardness silicon carbide single wafer; has high elastic recovery, significantly higher than ordinary Metals and ceramics, even higher than high-elastic shape memory alloys and organic rubber; in addition to electrical conductivity.
Zhao Zhisheng said that they will further develop synthetic methods, the ultimate goal is to develop ultra-high strength, ultra-high hardness and ultra-high elasticity materials.
We have 2kinds of cattle weight tape measure with case or without case to choose.
One is retractable weight tape measure, it can be used for pig and cattle.
Another is soft weight tape measure, it can only be used for cattle.
About Materials
Retractable weight tape measure is made of ABS case, PVC coated fiberglass tape, and metal loop.
Case color can be customized according to your pantone code
And custom logo is available as well,we can print logo on the case.
While soft weight tape measure is PVC coated fiberglass tape, metal loop on both ends.
For Retractable weight tape measure:
1. The size is portable and handy, with retractable structure, it is easy to bring with a hanger.
2. The case diameter is 6cm and the thickness is 2cm.The tape length is 250cm 14mm in width.
For soft weight tape measure: total length of this tape measure is 250cm and 2.5cm wide.
About Tpaeline
For Retractable weight tape measure:
The tape is 250cm on one side, for the back side, there are two charts
1)One for dead pig weight, each girth in cm matches a weight in kilogram.
2)The other one is for beef cattle and diary cattle live weight
About Language
We have 2 language versions:
1. The most popular one is in English+French
2.French+Germany
It is suitable for measuring dead pig, and living cattle. For example European milking breeds, cross breeds and zebu.
About Usage
Step 1. Measure the pig or cattle's heart girth in centimeter, just behind the front legs.
Step 2. Note the measurement.
Step 3. For pig weight measuring, match the girth to the dead pig weight according to the first chart.
Some of our clients which sell breeds ordered our custom cattle weight measuring tape, their sales rate increased a lot.
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