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Fine ceramics do not break easily?

Fine ceramics do not break easily?

Answer:

Also easy to break, fine and strength is not so much contact, processing technology only, ceramic most fragile, dense and big in the year, certainly better, and fine, that is the processAskIs this ceramic not for the pursuit of toughness?Chasing the answerNo, there are different purposes. This includes two kinds of engineering ceramics and functional ceramics, respectively, in order to pursue high hardness, corrosion resistance and other mechanical properties and light, electric, magnetic and other properties. Each of them has many specific directions, such as ferrite ceramics, such as magnetism
However, the fragility of ceramic materials - brittleness has not been fundamentally solved. Fine ceramic powder particles is larger, micron (10 m), is still very fragile, a new preparation method of the ceramic powder particle processing to nanometer level (10 m), the ultrafine powder particles to produce ceramic materials, a new generation of nano ceramics, this is the third leap of ceramic materials. Nano ceramics have ductility, and some even appear superplasticity. Such as TiO2 ceramic synthesized at room temperature, it can bend, its plastic deformation of up to 100%, toughness is excellent. Therefore, people hope to develop nano technology to solve the brittleness of ceramic materials. Nano ceramic is called "twenty-first Century ceramics".
Brittleness is the common character of ceramic materials.Fine ceramics can be divided into two major categories: engineering ceramics and functional ceramics. The former mainly use their high hardness, high melting point, wear resistance, corrosion resistance, also known as structural ceramics; the latter mainly use their light, sound, electricity, heat, magnetic and other physical characteristics, also known as electronic ceramics. Chemically divided into oxides and non oxides. The former consists of various oxides and salts of oxygen; the latter include nitrides, carbides, boride, etc.. The former is used as functional ceramics, and the latter as engineering ceramics. Some varieties are used to make engine parts, automobile parts, TV sets, hair dryers, fire alarms, high temperature extrusion dies, etc..

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