After sorting out the information in the laboratory for a while, Alvin walked out of the laboratory and walked towards the backyard downstairs. Cheddar was waiting by the door. When he saw Alvin coming downstairs, he followed him consciously. **!Book. Bar* When Ivan walked to the hall downstairs, Emma, ??Wolf Er and the five demons from the small world also got the news, put aside the things at hand, and ran over to watch the fun. Although Ivan was a little It was unexpected, but he would not blow them away on the spot. It was not something that needed to be kept secret, so just treat it as their relaxation time after work, so a group of people gathered together and rushed to the backyard of the tavern. In the backyard, six little devils were standing in front of several long tables with a large number of ceramics, waiting. They saw such a large group of people coming, and except for the cheddar on the last head, this group of people There was actually no low-level demon among the people, and he immediately felt flattered. Of course, the huge surprise was followed by unprecedented nervousness. This is easy to understand. If Ivan is the only one present, if there is a problem with the development results of the ceramics, the so-called "county magistrate is not as good as the current one", Ivan is the boss of this group of little devils, and there is always a problem in the middle. It's separated by one layer, so there is still a chance to save it, but if Emma, ??the boss boss, sees it, the outcome of these little devils will be worrying. They may be used by Emma and made into food and drinks. . Rumors stop at wise men. The probability of a wise man emerging from a little devil is almost non-existent. Therefore, the rumor of drinking chain pubs butchering and selling little devil dishes is deeply rooted in the hearts of the little devils. Things have come to this point, and there is no point in regretting. The six little devils present looked at me and I looked at you. Finally, one little devil stepped out bravely and began to introduce their research results to everyone. This little devil¡¯s name is Zassad. His talent is high energy. With this talent, he is a good material whether he is a mage or a warrior. Unfortunately, his potential is less than 60, and there is no possibility of evolution, so he can only take the path of technical research. Zasad first led everyone to a small table. On this table were some scattered substances that had nothing to do with ceramics. They looked like a box of soil, a pile of fragmented animal nails, a piece of green glass, five pieces of metal of different colors, a few gems, a small magic crystal and a sharp craft knife. "Before showing the ceramics we developed, please allow me to introduce to you the popular Charani hardness scale in the craftsman industry. (_&Êé&°É)" Zasad said in a humble tone. "Hardness table?" Ivan looked at the things on the table and asked thoughtfully. He seemed to have some old memories in his mind. Tickled by this word. "Yes, the legend is that the material hardness reference table was formulated by the master craftsman Xia Ani more than 3,000 years ago. It used ten relatively common substances as a reference and divided it into ten grades. The hardness of most raw materials was divided into ten grades. It's included," Zasad explained carefully. Ai Wen was stunned when he heard this. In his previous life, there was a similar Mohs hardness scale. No wonder he felt a sense of d¨¦j¨¤ vu after hearing it. Seeing that Aiwen had no doubts, Zasad began to explain the contents of the Shaani hardness scale in detail. Because this hardness table is mainly for the convenience of craftsmen making tools, the standard reference materials are relatively common substances in the world. Taking the hardness of the most common soil as one, the hardness of the nails of ordinary creatures is two. The hardness of crude copper is three, the hardness of crude iron is four, the hardness of glass is five, the hardness of fine iron is six, the hardness of fine steel is seven, the hardness of ordinary gems such as red, yellow, blue and green is eight, and the hardness of magic crystal is nine. Fine gold is ten. Of course, the two substances, adamantine and magic crystal, are not said to be relatively common, but a craftsman still has the opportunity to see them several times in his life. ¡, Other substances with a hardness exceeding ten must exist in this world, such as star iron, hair crystal, silver marrow, etc. that have only appeared in legends. These legendary materials that ordinary people will never see in their lifetime are difficult to bring to the scene. Demonstration, but the hardness of fine gold with protective magic is definitely more than ten. However, it is meaningless to put these substances with a hardness of more than ten in the table. As a craftsman, at most you can get an expensive one. Utility knives made of fine gold, just like the one Zasad is holding in his hand now, enchanted weapons, legendary weapons, etc. cannot be held by craftsmen. Only alchemists can hold them. qualifications. As Zasad explained, he used the adamantine tool knife in his hand to lightly scratch the ten types of materials. To observe the hardness of the materials, there is no more intuitive way than doing this. With the same force, the more the knife marks, the more The shallower it is, the higher the hardness is. Comparing this world's Shaani hardness scale, Alvin took the adamantine knife and tried to check the hardness of two extremely important substances in the territory. It turned out that the hardness of sandstone that could be transformed using the mud-to-stone spell was , about two to three degreestime, and the hardness of granite that can be converted from high-grade stone is about six to seven degrees. This result is quite consistent with Ivan's impression of the solidity of these two stones. After briefly explaining the contents of the Shaani hardness scale, Zasad began the highlight of the evening. He cut all the ceramics that the little devils had worked hard to produce in the past month and a half with an adamantine knife. The results are obvious. The harder the ceramic products are, the more recently they were made. Although the three bottle-shaped ceramics that were made recently are not very beautiful in appearance, their hardness exceeds eight degrees. This makes them just for fun. Emma and others were surprised. Next, Zasad demonstrated the defense capabilities of these three ceramics against various magics. He called on his companions to use their spell-like magic on the three ceramics, such as fireballs, acid arrows, and electric shocks. The magic-like light flashed on the three pieces of ceramics one after another. The surface of the ceramics turned gray, as if it had been scorched by magic. But when Zasad touched the surface of the ceramics with his hand, the surface of the ceramics turned gray. The surface became shiny again. Ai Wen is not as easy to fool as laymen in the ceramic industry like Emma. Ceramics themselves have good resistance to high temperature, high pressure, strong acid and alkali, so when he watched Zasad's demonstration, he didn't think there was anything special about it. . After Zassad finished his demonstration, he signaled Zassad to move away from the table. Ivan took out a crossbow from the space bag, and then took out a bag of about twenty crossbow arrows. Then he loaded the string and pointed it at the three ceramics. One of the ceramic vessels was shot with an arrow. After a crisp sound, the ceramic vessel was broken into several pieces by the crossbow arrows on the spot. When Emma and the others saw this, their expressions changed. They looked at Zasad and the other little devils with some annoyance in their eyes. They were obviously suspecting that they were cheating. Otherwise, why would the ceramics that they boasted about so powerfully shoot an arrow? Can't stand it. Ivan's expression didn't change much. It seemed that he had expected this result. He took a palm-sized fragment from the fragments on the table and pressed it flatly against the stone wall not far away. Go up, then step back more than ten steps, and continue to shoot with an arrow. The ceramic fragments shattered again, but this time they only broke into three pieces, and the rest were some fine ceramic powders. Ivan walked over and took a look, took the smallest piece of ceramic fragment and pressed it against the wall. He followed the same pattern and stepped back and shot another arrow. This time, the crossbow arrow hit the ceramic fragment, but it did not continue to shatter it, but hit it hard. It bounced back and fell to the ground. There was silence for a moment. Zassad stepped forward carefully, took off the ceramic shards, took them back and put them on the table. He showed everyone a closer look. There was a small crack on the surface of the ceramic shards, but it was obviously far from broken. Very good, I guess it won't be a problem if I hit a few more arrows. ¡, But before any look of satisfaction appeared on the faces of the onlookers, Alvin took out a small hammer weighing about twenty kilograms and hit it hard, so that the piece of ceramic shards quickly turned into a pile of Fragments the size of fingernails. "The hardness of the ceramics you make may be good. On the surface, it seems to be very resistant to being cut by swords. However, such a conclusion is simply based on the hardness measured by cutting a fine gold weapon on the surface, which does not have much practical reference value. , because the material of ceramic is different from other materials. It is very special, it is very hard, but also very brittle, and its ability to defend against blunt blows is very poor." At this time, Ivan finally spoke, "Most of the weapons used by our enemies are. Swords, on the surface, they only have the effect of chopping, but in fact, they are heavy swords, weighing at least twenty or thirty kilograms, and even forty or fifty kilograms is not uncommon. Such a large weight naturally carries a heavy weight. It has a certain bludgeoning effect. In the face of such a sword, the ceramic armor you developed cannot have the proper protective effect in close combat. Perhaps if it were doubled in thickness and made into a palm-sized armor leaf, The assembled ceramic armor can be used by long-range troops. However, compared with the ceramics currently on the market, I don¡¯t think the quality of the ceramics you make now has any significant advantages - so, replace the long-range Regarding military armor, let¡¯s wait until you make better ceramic products.¡± ¡°Remember, the name special ceramics is not for nothing. I hope you can make ceramic products worthy of this title in the future. , you should also have this ability, after all, you have only started researching for a month and a half from being a layman in the ceramic industry to being an expert now, right?" Ivan finally encouraged. Zasad and the other little devils have always heard Ivan's various criticisms of their results. Unexpectedly, Ivan affirmed their achievements in the end and asked them to continue working hard. This feeling of turning around is simply amazing. It was like walking through the execution ground. Not to mention whether Ivan's encouragement really made these little devils burst into tears, and their motivation to develop new ceramics has greatly increased since then, but at least they know that with Ivan's words, Emma will definitely be able to withstand this level.It's past. (To be continued, please search Piaotian Literature. The novels will be better and updated faster!