My system is not decent

This time Chen Wenzhe was really amazed when he heard it, he really learned a lot of useful knowledge.

It's just that he felt a little strange. Thinking about the knowledge points just mentioned, it seems that they all involve the five famous kilns in the Song Dynasty?

Especially Ru Kiln, the two old men said more deeply!

Although a little puzzled, Chen Wenzhe didn't take it seriously, because Ru kiln porcelain is really rare.

Now that we have an opportunity to have an in-depth exchange, we should not miss it.

However, he still kept a careful note, and he would pay special attention to the knowledge points of the five famous kilns in the future.

Now that people are serious about it, Chen Wenzhe is not talking about it.

Since you said color, I'll say color change.

Chen Wenzhe is still most interested in blue and white porcelain, and what he does most is blue and white porcelain.

Of course, blue and white porcelain is the most good porcelain he can come into contact with.

As for this aspect, Jingzhen must be more professional, at least he can make more blue and white than him.

Since the two old men mentioned the change of glaze color and the change of blue and white color, Chen Wenzhe didn't mind having an in-depth exchange with them.

By the way, he also took a look, will the two old men bring the topic to the five famous kilns again, or will they simply lead to the Ru kiln porcelain?

When it comes to the beauty of blue and white, we must mention the color-changing blue and white, and there is a deep meaning in it.

Prosperous antique gold in troubled times, now definitely belongs to the prosperous age, and the value of antiques is constantly rising, but how many people really understand the beauty of antiques?

Of course, this is not talking about insiders, but even if they are insiders, how many people know that blue and white can change color?

Not many people know about the color-changing blue and white, and even fewer have seen it.

Most of the blue and white flowers before the three dynasties of the Qing Dynasty will change in color with different lighting and angles.

In addition, it is also closely related to the long-term sunshine and whether there is sunshine or not. The longer the sunshine, the darker the color, and the longer it is kept away from light, the lighter the color, and it can be reversed.

These features become more and more obvious as blue and white porcelain gets older.

It will take time to truly appreciate this feature.

It is difficult for ordinary people to understand, how can inorganic blue and white porcelain change color?

But the ancient people in China must have explored and tested it, and they confirmed this point, but they were limited by their knowledge and knowledge, and could not go further.

Of course, whether anyone agrees with this point or not, it exists objectively.

Now for the sake of inheritance, Chen Wenzhe really doesn't mind saying a few more words.

You must know that color-changing blue and white has another meaning, which refers to a blue and white hair color that was popular during the Wanli and Tianqi years.

It's green to blue and blue to green, and most importantly, it's fired in a kiln.

On the same porcelain, different colors will appear in the same stroke, the angle of the light source is different, and the perceived color is also different, but it is only the exchange of green and blue.

Chen Wenzhe knew very few of this kind of porcelain, but he hadn't grasped the exact formula of the glaze color, so he didn't burn one of them.

I mentioned this point this time, mainly to test it out, to see if Jingzhen has done some research.

If there is, then the glaze ore he needs may be able to buy from them.

Now that we talk about the color-changing blue and white, we have to mention the color-changing glaze.

The discoloration of ground glaze has not been understood by people until now, but it is an important basis for the identification of ancient porcelain.

Gu Yu

Porcelain is an inorganic substance, it will change color, it cannot be explained, but it exists.

The ground glaze of blue and white porcelain is generally a transition from white to duck egg blue.

Duck eggs are blue, closed for one year, and the color turns white;

After three days in Kaifeng, the color turned green.

If the ground glaze changes color, some blue dot-like mineral materials will be found in the glaze, and there is no imitation of this glaze color at all.

This situation is manifested in many glazes.

It's a pity that this kind of performance is a bit passive. From ancient times to the present, many people have discovered this kind of change, but it is not easy to prepare and fire the color-changing porcelain they want.

Blue and white are magical, and the nobleman Su Maliqing among the blue and white can also change color.

All blue and white flowers containing suma liqing will change color.

Long-term closure turns pale and white, and the longer the sunshine, the darker and brighter the color.

If there is a pair of ancient porcelain, it will be clear after a test.

There are very few Su Mali greens in the world, and it should be very difficult to see it change color.

Of course, it is not easy to see the beauty of Su Maliqing, but it is not difficult to see the color-changing glazed porcelain.

After all, modern technology is developing rapidly, as long as there is a will, what can't be done?

Chen Wenzhe is not old-fashioned, he is concerned about the development of science and technology, and he learns quickly and easily.

This time, I met two old men from Jingzhen with profound background and were willing to communicate with him, so I naturally had to come up with some useful information.

However, before that, he needs to go deeper, so that people can learn something from it!

Therefore, Chen Wenzhe took out the color-changing glaze that he had researched and didn't quite understand, mainly for fishing!

Modern research has proved that the principle of ceramic color-changing glaze is that the different firing temperatures make the glaze layer show different colors.

Therefore, this kind of color-changing glazed porcelain is also called "various light-changing glaze", which means that the glaze color changes with different light sources.

Speaking of this, we need to use modern science and technology.

Previously, because of the identification of a bronze ware, Chen Wenzhe paid special attention to the impact of technological development in modern times on the manufacture of porcelain.

There is also the chemical material for making cow hair patterns discovered by Zhang Gu before, and the research on the change of glaze color is also a kind.

This kind of technology, even Jingzhen's side, dare not say how good it is.

So when Chen Wenzhe mentioned it a little bit, the two old people were attracted.

They know that the glaze sometimes changes color, but they really don't pay special attention to this.

To be honest, Chen Wenzhe really knows a lot. Of course, this time, he did not learn from the ancient inheritance, but obtained it through absolutely various scientific journals.

The different-light color-changing glaze is based on the white glaze glaze of high-grade fine porcelain, and uses metal oxides, non-metal oxides, cerium, praseodymium, ytterbium, etc., and mixed rare earth oxides as coloring elements. into a glaze slurry.

After being applied to the surface of the green body, at an appropriate firing temperature, physical and chemical changes occur to form a new solid solution.

This kind of thing can change color under different light sources.

For example, it appears lavender under sunlight, azure under fluorescent lamps, dark green under mercury lamps, and orange-red under high-pressure sodium lamps.

After the porcelain is fired at high temperature from the kiln, the color of the glaze will not change whether it is blue and white porcelain or high-temperature colored glaze porcelain (including white body porcelain).

However, due to the doping of various rare earth elements such as neodymium and cerium in the glaze of color-changing glazed porcelain, the oxides in the kiln can selectively absorb light of a certain wavelength and convert light of other wavelengths to light due to changes in the atmosphere when fired at high temperature. The light, emitted or transmitted, makes the glaze surface show a certain color.