The Yaobian Tianmu lamp is very beautiful, but the most beautiful thing is the kiln stains inside it, which are the scars.
In particular, the oil drop-shaped blue spots inside are really like stars and diamonds, scattered in the night sky.
The whole tea bowl is like a universe, and the bright moon surrounding the center of the bowl gives people a strong and shocking feeling like looking up at the universe.
Nothing can best express the changes in the universe than this,
It is not difficult to understand the origin of its title of "universe in a bowl".
Inaba Tenmu has a cosmic and dreamy glaze color, and it itself is like a gorgeous star.
This plays a decisive role in the history of ceramics and even art.
It seems to have traveled through thousands of years of history, telling us about the glory of the Song Dynasty.
Unfortunately, there is no recognized imitation of Yaobian yet.
However, the fact that there are no high imitations or fine imitations does not mean that no one is studying this.
Through study and Chen Wenzhe's own accumulated experience in making porcelain, he still has a unique understanding of jianzhan.
From the shape and distribution of obsidian spots, Chen Wenzhe speculated that its formation mechanism is a high-temperature bubble mechanism.
Chen Wenzhe has studied high-temperature bubbles before, but did not go into depth.
Now it seems that he must study it in depth.
It's not valuable enough. His research this time is not to make secret color porcelain or celadon, but to make black glazed porcelain.
Judging from the three existing pieces of Yaobian handed down from ancient times, there are very few spots on the outside of the bowl.
The reason is that the outer shape of the bowl is convex and the bubbles burst earlier.
Since obsidian is fired at high temperatures, the spots formed by the bursting of bubbles can easily spread.
Under the action of the reducing atmosphere, the trivalent iron is quickly converted into divalent iron. The divalent iron is a strong flux and quickly melts into the glaze.
Make the spots disappear.
This also involves North China Oil Drops,
This phenomenon belongs to the low-temperature bubble mechanism.
The kiln oil droplets are of duckweed mechanism.
There is a big difference between high-temperature bubbles and low-temperature bubbles, especially the North China oil droplets.
So what is Huabei oil drop? Sometimes when I see a kind of lamp, it feels familiar, like Jian lamp.
But does it look like it? Take a closer look, and experienced lamp enthusiasts will soon discover that it is not a Jianzhan lamp, but a North China oil drop, which is also a type of black glaze.
So what are North China oil droplets? There are two types of oil droplets, one is kiln-building oil droplets, and the other is North China oil droplets.
The appearance of these two types of oil droplets is very similar, so they are often confused by people.
In fact, their formation processes and appearance characteristics differ greatly.
The most important thing is that the firing conditions are different. The firing temperature of Jian Kiln oil droplets is above 1300 degrees Celsius, while the firing temperature of North China oil droplets is around 1240 degrees Celsius.
The kiln-building oil droplets must be fired in a reducing flame, while the North China oil droplets can be fired in either an oxidizing flame or a reducing flame.
Furthermore, the formation mechanism is different. The formation mechanism of North China oil droplets can be summarized as the bubble mechanism.
The formation mechanism of kiln oil droplets can be summarized as the duckweed mechanism, which is the green duckweed floating on the surface of the pond.
Finally, the appearance characteristics of Jianzhan and Huabei oil droplets are different.
The appearance characteristics of Jianyao oil droplets and North China oil droplets are determined by their formation mechanisms.
There are still big differences here. First, the North China oil drop spots are evenly distributed.
Because it is formed from bubbles.
Where there is glaze, there are bubbles, so spots cover the entire glaze surface.
The spots of kiln oil droplets appear randomly, so they are unevenly distributed, some are sparse and some are dense.
Secondly, the size of the North China oil droplet spots 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" will be.
A "crater" pit, after flattening it becomes a spot.
The shape of the spots also depends on the shape of the pits when they are flattened.
The size of the kiln-building oil droplet spots has no necessary relationship with the thickness of the glaze layer.
The key lies in the size of the package, so the size of the spots on different parts of the same tea cup may vary greatly.
The spots are generally egg-shaped. This is because the glaze flows strongly due to the high firing temperature, and the wrapped mass is pulled downwards. If the pulling force is too large, the spots will be in the shape of strips.
Furthermore, the glaze flow of the oil droplets in the kiln is very strong, which makes the glaze at the mouth of the bowl thinner, not black and very dry.
On the outside of the bowl near the base, there is an obvious circle of polyglaze.
North China oil drop glaze is not easy to flow, the mouth of the bowl will not be deglazed after firing, and the phenomenon of glaze accumulation is not obvious.
There are grooves visible to the naked eye in the oil drop spots of the final kiln, which are similar to cracks after drying of field mud.
This is because the wrapped mass is composed of many liquid phase droplets.
However, there are no grooves in the North China oil droplet spots because the iron oxides are evenly gathered around the bubbles.
The presence or absence of grooves within the spots is the fundamental sign that distinguishes 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 within the spots.
In terms of artistic value, the value of Jianzhan Oil Drops is much higher than that of North China Oil Drops. This is unquestionable.
It can be seen from the firing mechanism of North China oil droplets that the firing temperature range of North China oil droplets is narrow. If the kiln temperature is too high, the spots will spread out. If the kiln temperature is too low, the bubbles will be difficult to burst.
Moreover, the North China oil droplets are greatly affected by the shape of the vessel, that is, in the recesses of the vessel shape, the bubbles are not easy to burst, and bubble marks are often left after burning.
From the spots in the obsidian bowl, we can also see that the spots disappear very quickly.
The reason for the disappearance has been mentioned before, and understanding all this can help Chen Wenzhe to change the oil drop kiln in advance, which is also the obsidian change.
Of course, there are no modern recognized imitations of Yaobian lamps, but that does not mean that there are no imitations.
In some modern imitation lamps, some spots are clearer, some spots are blurry, and some parts have no spots.
Therefore, the formation of obsidian patterns is like the colorful fireworks in the night, which come and go and last for a short time.
If this dynamic happens to be captured, its signs will be preserved, otherwise it will become a black glaze.
The halo around the obsidian spots was formed before the divalent iron disappeared, so it is very thin and becomes an interference film, which changes color when exposed to light.
It can be seen from the above that it is not difficult to distinguish true and false obsidian changes by analyzing the distribution of spots.
The obsidian spots have the largest drop, with almost none outside the bowl and irregular distribution inside the bowl.
The markings are in danger of disappearing within a very small range. From the comparison between clear and unclear, it can be seen that there is no chance of turning gray.
It can give people a warning that "one step away is an abyss", which can be said to be "mysterious and mysterious".
There is nothing surprising about obsidian spots under ordinary light. They are like some dead grass in a wilderness with no signs of life.
However, with the exposure 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 Yao's transformation.
Something that has been sought after by people from ancient times to the present is certainly not without reason.
And Jianzhan is well-deserved to be a national treasure. This is not only recognized by Neon people, but also by our countrymen!