My system is not decent

Chapter 1138: Mysterious and Mysterious
The Yaobian Tianmu lamp is very beautiful, but the most beautiful thing is the kiln transformation inside it, that is, the scars.

In particular, the blue spots in the shape of oil droplets are really scattered in the night sky like stars and diamonds.

The whole tea bowl is like a universe, and a round of bright moon wraps around the center of the bowl, giving people a strong sense of shock like looking up at the universe.

Nothing can best express the changes of the universe than this kind, so it is not difficult to understand the origin of its title of "universe in a bowl".

Inaba Tianmu has a cosmic dreamy glaze color, and itself is like a gorgeous star.

This has a pivotal position in the history of ceramics and even in art.

It seems to be through the history of thousands of years, telling us about the glory of the Song Dynasty.

It's a pity that there is no recognized imitation of Yaobian so far.

However, there is no high imitation or fine imitation, but it does not mean that no one studies this.

Through learning, coupled with Chen Wenzhe's accumulated experience in making porcelain, he still has a unique understanding of Jianzhan.

From the shape and distribution of obsidian markings, Chen Wenzhe speculates that the formation mechanism is the mechanism of high temperature bubbles.

Chen Wenzhe has studied high-temperature bubbles before, but he didn't go deep into it.

Now it seems that he must study it in depth.

The value is not enough, his research this time is not to make secret color porcelain, nor is it to make celadon, but to make black glazed porcelain.

Judging from the three existing Yaobian handed down products, there are very few spots on the outside of the bowl.

The reason is that the shape of the outer bowl is convex, and the bubbles burst earlier.

Because obsidian is fired at high temperature, the spots formed by the collapse of bubbles are easy to disperse.

Under the action of reducing atmosphere, ferric iron is quickly transformed into ferrous iron, which is a strong flux, and will soon melt into the glaze, making the markings disappear.

North China oil droplets are also involved here. This phenomenon belongs to the low-temperature bubble mechanism, while Jianyao oil droplets belong to the duckweed mechanism.

There is still a big difference between high-temperature bubbles and low-temperature bubbles, especially oil droplets in North China.

So what is the North China oil drop?Sometimes when I see a kind of lamp, I feel very familiar, like Jianzhan.

But is it like that?Take a closer look, and the experienced friends soon found out that it was not Jianzhan, it was Huabei oil drop, and it was also a kind of black glaze.

So what is North China Oil Drop?There are two types of oil droplets, one is Jianyao oil droplets, and the other is North China oil droplets.

The appearance of these two types of oil droplets is similar at first glance, so they are often confused.

In fact, their formation process and appearance characteristics are very different.

The most important thing is that the firing conditions are different. The firing temperature of Jianyao oil droplets is above 1300 degrees Celsius, while that of Huabei oil droplets is around 1240 degrees Celsius.

Kiln-built oil droplets must be fired in reducing flames, while North China oil droplets can be fired in either oxidizing or reducing flames.

Furthermore, the formation mechanism is different. The formation mechanism of oil droplets in North China can be summarized as the bubble mechanism.

The formation mechanism of oil droplets in the kiln can be summarized as the mechanism of duckweed, which is the green weed floating on the water surface of the pond.

Finally, the appearance characteristics of Jianzhan and Huabei oil droplets are different, and the appearance characteristics of Jianyao oil droplets and Huabei oil droplets are determined by their formation mechanism.

There is still a big difference here. First of all, the oil drop spots in North China are evenly distributed because they are formed by air bubbles.

Where there is glaze, there are air bubbles, so the spots are all over the glaze.

The spots of the oil droplets in the kiln are randomly generated, so the distribution is uneven, sparse and dense.

Secondly, the size of oil drop spots in North China is closely related to the thickness of the glaze layer, because the thicker the glaze layer, the larger the bubbles and the larger the "crater".

A "crater" crater, flattened out to be a speck.

The shape of the spots also depends on the shape of the pits when they are flattened.

The spot size of oil droplets in kiln construction has no necessary relationship with the thickness of glaze layer.

The key lies in the size of the package, so the density of spots on different parts of the same teacup may vary greatly.

The spots are generally egg-shaped. This is because the high firing temperature and the strong flow of the glaze cause the package to be pulled downward. If the pulling force is too large, the spots will become strips.

Another thing is that the Jianyao oil drop glaze flows strongly, which makes the glaze on the mouth of the bowl thinner, not black and very dry.

And on the outside of the bowl near the bottom foot, there is a clear circle of polyglaze.

North China oil drop glaze is not easy to flow, the bowl mouth will not deglaze after firing, and the phenomenon of glaze gathering is not obvious.

Finally, within the spots of oil droplets in the kiln, there are grooves visible to the naked eye, similar to the cracks after the field mud dries.

This is because the package group is composed of many liquid phase droplets.

However, there are no grooves in the oil drop spots in North China, because the iron oxides are evenly gathered around the bubbles.

Whether there are grooves in the spots is the fundamental sign to distinguish the two types of oil droplets.

No matter how the size, shape, density, color and other characteristics of the two types of oil droplets change, they remain the same, and their formation mechanism will be revealed from the grooves in the spots.

In terms of artistic value, the value of Jianzhan Oil Drops is much higher than that of North China Oil Drops, which is beyond doubt.

From the firing mechanism of North China Oil Droplets, it can be known that the firing temperature range of North China Oil Droplets is narrow. If the kiln temperature is too high, the spots will disperse, and if the kiln temperature is too low, the bubbles will be difficult to burst.

Moreover, oil droplets in North China are greatly affected by the shape of the vessel, that is, the bubbles are not easy to burst in the concave part of the vessel shape, and bubble marks are often left after burning.

From the spots in the Yaobian bowl, it can also be seen that the spots disappear quickly.

The reason for the disappearance has already been mentioned before, and understanding all of this can help Chen Wenzhe to make the oil-drop kiln change in advance, that is, the Yao change.

Of course, the modern recognized Yaobianzhan imitation has not appeared, but it does not mean that there are no imitations.

Some modern obsidian imitations have clear spots, some blurred spots, and some parts have no spots.

Therefore, the formation of obsidian markings is like colorful fireworks in the night, one after another, and the duration is very short.

If this movement happens to be captured, its sign remains, otherwise it becomes a black glazed cup.

The halo around the obsidian spot is formed before the ferrous iron disappears, so it is very thin and becomes an interference film, which changes color under light.

It can be seen from the above that it is not difficult to distinguish true and false obsidian changes as long as they are analyzed from the distribution of markings.

The obsidian spot has the largest drop, almost no outside the bowl, and the distribution inside the bowl is also irregular.

The markings are in danger of disappearing in a very small range. From the contrast between clear and unclear, it can be seen that there is no chance of turning gray.

It can warn people that "one step away is the abyss", which can be described as "mysterious and mysterious".

Under ordinary light, the obsidian spot is not very surprising, it is like some withered grass on the wilderness with no signs of life.

However, with the irradiation and refraction of light, it will immediately exude amazing vitality and become completely different.

This is the magic of Jianzhan, or to be precise, this is the magic of Jianzhan Yaobian.

One thing has been sought after by people from ancient times to the present, and it is certainly not without reason.

And Jianzhan is a well-deserved national treasure, which is recognized not only by Neon people, but also by our countrymen!
(End of this chapter)