Common ceramics have patterns and colors, such as white tiles, black tiles, or other floor tiles and wall ceramic tiles of various colors, but today I recommend them to you What are transparent tiles? That is to say, they are transparent and have no color. Then interested consumers will be confused. Are there really transparent tiles? How should they choose? ?What are the corresponding advantages and disadvantages? Interested consumers can learn more about them below.
1. What is transparent ceramics
Generally ceramics are opaque, but optical ceramics are as transparent as glass, so they are called transparent ceramics. Generally, the reason why ceramics are opaque is that there are impurities and pores inside them. The former can absorb light, while the latter scatters light, so it is opaque. Therefore, if high-purity raw materials are used and pores are eliminated through technological means, it is possible to obtain transparent ceramics. In the early days, this method was used to obtain transparent alumina ceramics. Later, various oxide series transparent ceramics such as sintered white corundum, magnesium oxide, beryllium oxide, yttria, yttria-zirconia and other series were successively developed. Recently, non-oxide transparent ceramics have been developed, such as gallium arsenide, zinc sulfide, zinc selenide, magnesium fluoride, calcium fluoride, etc.
2. What are transparent ceramics?
High-temperature ceramics
These transparent ceramics not only have excellent optical properties, but are also resistant to high temperatures. Generally, their melting points are around 2000 ℃ or above. For example, the melting point of thorium oxide-yttrium oxide transparent ceramic is as high as 3100°C, which is 1500°C higher than ordinary borate glass. An important use of transparent ceramics is to manufacture high-pressure sodium lamps. Its luminous efficiency is twice that of high-pressure mercury lamps and its service life is 20,000 hours. It is the most efficient electric light source with the longest service life. High-pressure sodium lamps work stably up to 1200°C, have high pressure and are highly corrosive. High-pressure sodium lamps have been successfully manufactured using alumina transparent ceramics as materials. The transparency, strength, and hardness of transparent ceramics are higher than ordinary glass. They are wear-resistant and scratch-resistant. Transparent ceramics can be used to make bulletproof car windows, tank observation windows, bomber bombsights, and advanced protective glasses.
Thermosensitive glass ceramics
The manufacturing of transparent ceramics is to consciously add some trace amounts of metals or compounds (such as gold, silver, copper, platinum, titanium dioxide, etc.) into the glass raw material. As the core of the crystal, after the glass is melted and formed, it is irradiated with short-wave rays (such as ultraviolet rays, X-rays, etc.) or heat treated to activate the crystal core in the glass, coalesce with each other, develop and grow, and form Many tiny crystals form glass ceramics. Glass ceramics that are crystallized by short-wave ray irradiation are called photosensitive glass ceramics, and glass ceramics that are crystallized by heat treatment are called heat-sensitive glass ceramics.
Transparent ceramics have high mechanical strength and hardness, can withstand very high temperatures, and will not soften, deform, or crystallize even at temperatures as high as one thousand degrees. The electrical insulation properties and chemical stability are very high. Another interesting property of photosensitive glass ceramics is that it can be sensitive to light like a photographic film. Because this transparent ceramic has such photosensitive properties, it is also called photosensitive glass. And its resistance to chemical corrosion is also very good, and it can withstand strong radiation from radioactive materials. It can not only transmit light like glass, but also transmit infrared rays with a wavelength of more than 10 microns. Therefore, it can be used to make observation glasses for three-dimensional industrial TVs, glasses to prevent nuclear explosion flash hazards, and discharge tubes for new light source high-pressure sodium lamps.
Transparent ceramics have a wide range of uses. In the mechanical industry, they can be used to make high-speed cutting tools on lathes, turbine blades, water pumps, jet engine parts, etc. In the chemical industry, they can be used for high-temperature corrosion resistance. Materials can replace stainless steel. In the national defense and military, transparent ceramics are also a good transparent bulletproof material. They can also be made into radomes and infrared fairings for the heads of missiles and other aircraft. They can also be used in the instrument industry. High-hardness materials can replace gemstones and can be used in the electronics industry to make substrates and engraving plates for printed circuits. In daily life, they can be used to make various utensils, bottles, tableware, etc.
When it comes to transparent things, the first thing we may think of is glass, but few friends would think of buying a transparent tile. In fact, compared with white, black and other kinds of ceramic tiles, For ceramic tiles of different colors, this kind of transparent ceramic tile is more matchable and will not affect the lighting effect. It can also be frosted and engraved according to the pattern. How to purchase it specifically? What are the corresponding advantages and disadvantages? ?We might as well take a look at the above together. The editor recommends these aspects of information to everyone.