Military Industry of Great Powers: Build the Strongest Flanker

With the endorsement of Dean Gao and Chief Engineer Bi, the matter was basically settled.

Zhao Guoqing drafted a plan that night, involving laboratory equipment for the refining of semiconductor elements such as gallium, indium, germanium, and antimony, as well as equipment for the preparation of compounds such as gallium nitride, indium antimonide, aluminum gallium nitride, and germanium carbide. With raw materials, of course, sapphire substrate wafers, silicon 111, silicon 110, and other wafer equipment and equipment raw materials, there are more than three hundred items in total.

There are also electric furnaces, vacuum furnaces, ion injectors...

The next day in Director Gao's office.

"On National Day, they have elemental gallium-43, as well as the pure ammonia you mentioned, and the constant temperature furnace. You can go directly to them to make it!"

"Director Gao, what is the price of gallium in China?"

"Fortunately, I asked. Gallium can also be smelted domestically, but the cost is too high. You can't smelt much of the mineral in one meal. Most of them are bought from abroad, and the price is by the gram, which is not much different from the price of gold. ?”

Zhao Guoqing knew that the smelting technology of rare earth elements in China was still relatively backward. This situation continued until two thousand years later, and this was also the reason why the country's rare earth mines were sold at low prices.

The price of smelting it yourself is not as cheap as buying it.

You must know that rare earth ores are mostly composite ores that combine a variety of rare earth minerals. Extracting one element individually often results in a huge waste. Extracting it separately is too expensive. Foreign countries have designed streamlines and used them. Comprehensive extraction can effectively reduce costs.

"Hey, the smelting technology of Xiaori is much more advanced than that of our country. The rare earth mines in the south are exported to Xiaori in exchange for pitiful foreign exchange."

There are not many things that the country can earn foreign exchange from now. The first is agricultural products, the second is resources, and the third is others.

In the 1980s, the country also exported large amounts of oil and coal. This is the reality.

"Director Gao, if we don't export rare earths and instead export elemental gallium, elemental germanium, and elemental antimony, can we earn more foreign exchange?"

Director Gao smiled and said, "Do you also know how to smelt rare earths?"

"Understand Yidiandian, Director Gao, what units in the country are researching rare earth smelting? If the 14th Institute provides some smelting ideas, will they provide some experimental equipment."

After hearing this, Director Gao shook his head and said: "It's National Day, if you don't work on this light-emitting semiconductor, it will be rotten in the 14th Institute. But if you brag and brag to the Institute of Metallurgy of the Z Academy of Sciences, you will be blown away by then." , it’s a small thing to be embarrassed, you have to take responsibility!”

"I'll take the responsibility!"

The refining of rare earths has always been a confidential foreign technology. Two thousand years later, the country has gradually mastered the rare earth smelting technology, so that the production process is far ahead of the world. There is nothing confidential about this technology. A Google search reveals various rare earth refining processes. Just like Chinese cabbage, you can search for it casually.

In his memory, Zhao Guoqing did a special study at that time and admired Mr. Xu Guangxian, the father of rare earths in China.

Advanced technology, coupled with the country's abundant rare earth mines and super-large scale effect, will allow China to become the rare earth overlord in 40 years, with enough strength to use rare earths to compete with the West.

What made this possible was the reflux cascade extraction technology theory proposed by Teacher Xu.

Teacher Xu should still be in the Chemistry Department of University B now!

Dean Gao glared at Zhao Guoqing and said: "How can you, with your small arms and legs, be able to bear this responsibility? The Academy of Sciences has formulated a special research plan for rare earth smelting, but in the end there has been no success. How can you, a layman, know this?" What!"

Zhao Guoqing smiled and said: "Dean Gao, I'm sure you can hand me some information. If people want to be fooled, we can't stop them!"

"...You kid, what else are you thinking of!"

…………

General Engineer Bi came to the headquarters the next day and went to the General Supply Department to apply for materials.

"Gallium nitride crystal? Old Bi, you have such a big mouth!"

"..."

"This thing is subject to Western export control. Now it is better than Eagle Sauce, and the country can buy some, but it can only be used for university research. The U.S. Embassy also keeps track of its use. One of the conditions is that it cannot be used in We, those in the military industry, don’t think about it now!”

"What? So precious?"

"Not only us, but the furry bears next door are also in short supply. Why is Yingjiang staring at you? The main reason is that he is afraid that we will give him furry bears. I heard that these things are much more expensive than gold!"

"..."

The fact that Xiao Zhao could prepare things controlled by foreign countries became more and more confusing, and Chief Engineer Bi became very excited.

As soon as he returned to Institute 14, he immediately reported the situation to Director Gao.

"Are you serious?"

Mr. Bi nodded.

"I hope Xiao Zhao is not bragging!"

The two of them knew very well what it meant to break foreign controls.

"Now this matter is the top secret obtained by 14. We will provide Xiao Zhao with all possible conditions."

"good!"

Three days later, the raw materials arrived. General Engineer Bi borrowed an infrared thermometer from Institute 53. Half a month later, he found an ultra-high-pressure sealed reactor. Of course, it was laboratory equipment, not industrial equipment.

A set of ultra-high-pressure reactor industrial equipment weighs thousands of tons, while a small-scale laboratory preparation can be loaded in one vehicle.

"Director, you are so awesome, you can get all these things!"

He originally wanted to use hydride to prepare crystals, which required lower hardware conditions. With this furnace, he could prepare high-purity gallium nitride crystals.

"How are you preparing?"

"about there!"

"When can we start?"

"Now you can!"

There is elemental gallium and high-purity ammonia. The materials are all ready. The high-temperature reaction electric furnace is available at 14 Institute. Sometimes special equipment is required for processing, as well as high-precision machine tools. Of course, no matter how high the precision is, it is manual. 14 Institute There are two level 8 fitters, and there is no problem in making parts with half wire precision. At worst, several blanks will be scrapped.

In a sealed high-temperature furnace, place gallium in it and slowly blow up the ceramic tube. The preheated ammonia reacts with the elemental gallium in contact at a temperature of more than 600 degrees to generate gray nitride. Gallium powder...

"How about it?"

"Compound extraction is proceeding normally!"

“The next step is to prepare the gallium nitride crystal!”

Zhao Guoqing's confidence increased greatly.

Gallium nitride compounds will decompose at about a thousand degrees, which cannot be prepared by melting and crystallizing like silicon.

Gallium nitride is soluble in alkaline water, but ordinary alkaline solutions have too many crystalline impurities.

The world has been exploring this item for a long time, and finally found three solutions that are both economical and quality-guaranteed.

At present, the only method that has the conditions is to use the ammonia heat method.

Gallium nitride is easy to decompose at high temperatures, but in alkaline solution, it will not decompose even to the liquefaction level.

Liquid ammonia is a good carrier, and with the help of HCO minerals, pure gallium nitride crystals can be grown.

The technical difficulty is to increase the temperature of liquid ammonia. You must know that ammonia is a gas. When pressed into a gas at normal temperature, it requires several atmospheres of pressure. At more than 1,000 degrees, liquid ammonia reaches a pressure of 2,000 atmospheres. This kind of ultra-high pressure High-pressure furnace, Zhao Guoqing did not expect that the country would have this equipment.

After maintaining the pressure for seven hours, the pressure was lowered and the furnace was turned on. After a strong and irritating ammonia gas overflowed, Engineer Bi looked into the furnace ahead of Zhao Guoqing and saw a pale yellow crystal deposited on the bottom of the furnace.

"Success!"

"Success!"

General Engineer Bi looked at Zhao Guoqing as if he were a monster, and it really turned out to be a monster.

Director Gao is not as excited as Chief Engineer Bi. Boss, you have to stay calm.

"National Day, I want to send this crystal to the Academy of Sciences for appraisal first. What do you think?"

Zhao Guoqing nodded and suppressed his excitement. The goal was getting closer.

"Director Gao, you decide, just help me get some more gallium!"

"Okay, we have enough gallium tubes. Lao Bi, you go to the headquarters today and keep an eye on Director Xie. If he doesn't give it to you, don't come back!"

"..."