I bought all the things I needed.

Seeing these things, Liu Yong was so excited that he trembled a little. He quickly put the piece of metal in his hand on the table and took a look at these things with satisfaction.

Although they are all common things, such as some common chemical tools and chemicals, such as common electronic scales, cutting tools, etc.

Liu Yong turned on the ventilation fan, pulled the blinds up, and then began to verify in person.

The first thing to verify is the density of this unknown metal, so Liu Yong picked up the cutting tool and started cutting.

After a while, Liu Yong knew that although this metal is very light, its hardness is not low, and it is definitely much harder than ordinary steel. After cutting it for a long time, it took a lot of effort to cut a small piece with an electric cutting tool.

The cutting surface has a distinct metallic luster. Liu Yong further affirmed that this is a metal, which may be a metal produced by alien civilizations.

Weigh the weight first.

The cut piece of metal was weighed on an electronic scale, and the weight was 27.35 grams.

Then he used a measuring cylinder to measure its volume. Liu Yong used a calculator to calculate it and the density obtained was 2.6.

We know that the density of iron is 7.8, the density of titanium alloy is about 4.5, the density of aluminum alloy is 2.7, and the density of this gray-black metal is 2.6, which is slightly lighter than that of aluminum alloy.

This is more awesome!

It is so lighter than aluminum alloy, but it is not as soft as aluminum alloy, but it looks harder, at least harder than ordinary steel.

Then, Liu Yong tested its corrosion resistance. No matter whether it was put into sulfuric acid or hydrochloric acid, there was no reaction at all.

Liu Yong didn't believe in evil, so he personally prepared a cup of water regia, then collected the metal chips that had just been cut into the metal and poured them into the cup of water regia.

Aqua regia is astonishingly corrosive and can even corrode gold, but after pouring these metal crumbs into the aqua regia, they corrode very slowly.

Liu Yong also used a glass rod to stir constantly, trying to speed up the reaction speed, but the reaction speed was still very slow.

Since it is so slow, let them react slowly. Liu Yong recorded the time and took a look. After a few hours, the metal chips could be fully reacted.

Next, Liu Yong conducted a series of experiments and the results were amazing.

For example, the melting point of this metal seems to be very high. If you heat it with flame for a long time, people will not even be red, and the color will not change for a moment, and they will still be black and gray.

Liu Yong once thought there was something wrong with his flame, so he quickly found a piece of iron wire. Under the spray of the flame, the iron wire turned red and turned white.

This shows that the temperature of the flame is very high. Although it has not reached the melting point temperature of the wire, it is estimated that it has exceeded 1200 degrees, not far from the melting point of the wire.

After a series of verifications, Liu Yong has a preliminary understanding of this metal.

Small density, high melting point, high hardness, strong corrosion resistance, etc.

Liu Yong sighed in his heart that he is worthy of being a product of alien civilization and has greatly surpassed the earth civilization.

Specific properties, such as hardness, tensile strength, ductility, melting point, etc., cannot be verified for the time being, so professional equipment and professional institutions are required.

Should I send it to a professional institution for testing? Liu Yong soon made a decision.

The cut piece of metal weighing only 20 grams was carefully wrapped in several layers with plastic film, and then asked Qiu Yang to send it out.

It was mailed to the most authoritative professional institution in Yan State, the Institute of Special Metal Materials under the Yan State Academy of Sciences.

The recipient wrote about Hu Jianguo, the director of the institute. He is an authoritative expert in special metal materials and an academician of the Yan State Academy of Sciences.

.........

Institute of Special Metal Materials.

Hu Jianguo met with a guest in his office, Liang Chengwen, an authoritative expert in Yanguo aviation engines.

The two of them are alumni, the same university, and the same class graduates, but only have different majors. One learns materials, and the other learns aviation engine design.

Aero engine design and research and development involve a lot of cutting-edge science, the most important of which is materials science.

One generation of materials, one generation of aviation engines.

Yanguo can only be considered first-class in the field of aviation engines, and stay at the level of third-generation aircraft engines. Some developed countries have become very mature in the fourth-generation aircraft engine technology and have successfully developed fifth-generation engines.

Compared with those developed countries, Yan's technology gap in the field of aviation engines is at least two or three decades behind.

Hu Jianguo asked with concern: "Old guy, how is your turbofan x now?"

The turbofan x is the fourth-generation engine with a thrust-weight ratio of 10 points 5. It uses vector nozzle technology and will be used on the new domestic fifth-generation fighter.

The country has placed great hope for this engine and has also given a lot of support.

However, during the development process of this engine, various problems arose, and the whole process was very difficult.

Liang Wencheng sighed softly, with a bitter look on his face, "There are still some problems, the most important problem is that the temperature in front of the turbine cannot be increased and the blade life is not good."

The pre-turbine temperature of an aircraft engine is an important indicator, and the pre-turbine temperature of an advanced engine can reach above 1,800 degrees Celsius.

At such a high temperature, many metals have melted, let alone working in such a temperature environment, and outputting strong thrust.

This requires special metals and high-temperature alloys.

The high-temperature alloys required by some advanced engines are not ordinary. What is needed is powder metallurgical high-temperature alloys that can withstand higher temperatures, and a series of cooling designs are required to ensure that the turbine disk and turbine blades can work normally and for a long time at such a high temperature.

Liang Wencheng dreamed that he would further increase the front-turbine temperature of the turbofan x engine and increase the service life of the blades, but unfortunately, the materials were not good.

"Jianguo, I came here to ask you for help this time. We need a material comparable to imported high-temperature alloys. Otherwise, our turbofan x project will stagnate."

Upon hearing this, Hu Jianguo became solemn and said slowly: "This may not be able to relieve near-thirst. Although we have already established a single crystal high-temperature alloy domestication project, it will take at least five to eight years to apply it to industrialization."

It will take so long, five to eight years???

Liang Wencheng could only sigh. It was too long for them to wait.

As for imported single crystal high-temperature alloys abroad, it is not only extremely difficult, but also very expensive, but also can stuck your neck at any time.

If you stop offering one day, it will be troublesome.

What to do?

Liang Wencheng's heart sank straight down.

"Dong, dun, dun!"

There was a knock outside the office door. Hu Jianguo's assistant came in with a courier package in his hand.

...........
Chapter completed!