The main application areas of glass ceramic are 20

1. Glass-ceramic is one of the latest advances in materials science. Fifty years ago, after the internal nucleation and crystal growth in lithium silicate glass were discovered by chance, after nearly forty or fifty years of research and development, the preparation and application of this new type of material have been rapidly developed. As a building material, its performance combines the advantages of glass, ceramics and stone; As functional materials and structural materials, they have been widely used in microelectronic technologies such as optics, electricity, biology, chemistry and magnetism, biomedicine, cutting-edge technology for national defense, machinery manufacturing and other fields, and have great development prospects.

Glass-ceramic has many excellent properties, such as: high mechanical strength, adjustable thermal expansion, good thermal shock resistance, chemical corrosion resistance, low dielectric loss, good electrical insulation and other superior comprehensive properties; This material not only has good economic benefits, but also has the potential to replace more traditional materials.

2. Glass-ceramic is planned as the strategic development focus of the national comprehensive utilization action and the focus of environmental protection, and is known as a cross-century comprehensive material. At present, it has been widely used in many fields.

1. The application of mechanical and mechanical materials uses the mechanical and thermal properties of glass-ceramic such as high temperature resistance, thermal shock resistance, and adjustable thermal expansion to manufacture various materials that meet the requirements of mechanical mechanics.

2. Application of optical materials In recent years, there has been a use of lithium-based glass-ceramic materials to manufacture optical fiber joints, which are different from the traditional use of zirconia.

coefficient of thermal expansion of a material compared to a material.

It is more compatible with the hardness of quartz glass optical fiber, which is easier to process with high precision and has excellent environmental stability.

3. Sol-gel method for the application of electronic and microelectronic materials.

The dielectric constant of the prepared ferroelectric glass-ceramic.

It decreases and then increases as the temperature increases, and its Curie point.

Mica glass-ceramic with obvious diffuse characteristics has a wide range of application prospects in the fields of electronics, precision components, and aviation. Polar glass-ceramic is a new type of functional material, containing directionally grown non-ferroelectric polar crystals with piezoelectric and pyroelectric properties, and has broad application prospects in the fields of underwater acoustics and ultrasound.

4. Application of biomedical materialsIt is reported that after the calcium-iron-silicon ferromagnet glass-ceramic specimen is immersed in the simulated body fluid, the silica gel layer on the surface of the specimen generates hydroxyapatite carbonate that can be well combined with human tissue.

It has good biological activity and strong magnetic properties, and plays a role in human bones.

and warm heat to cure cancer.

It should be good to make building decoration materials.

Glass-ceramic can be used for building curtain walls and indoor high-end decoration, and can also be used as structural materials for machinery, insulating materials for electronics and electricians, bottom plate materials for large-scale integrated circuits, heat-resistant racks for microwave ovens, chemical and anti-corrosion materials and wear-resistant materials for mines.

At present, the glass-ceramic used in construction is sintered and does not add crystal nucleating agent. Its basic principle is that glass is an amorphous solid, and from a thermodynamic point of view, it is in a metastable state, which has higher internal energy than crystals, so under certain conditions, it can be converted into a crystalline state.

Architectural glass-ceramic uses the heterogeneous crystallization mechanism without crystalline nuclide, fully applies the thermodynamic possibility and kinetic inhibition, and under certain conditions, makes this complementary physical process form a new equilibrium, and obtains a new material.

Color-changing glass, wire-lined glass, wire-mesh anti-theft glass, heat-absorbing glass, sound-eating glass.

Glass-ceramic is a hybrid of glass and ceramic. It is to precipitate a uniform crystalline phase inside the glass by a certain heat treatment, so that it has the characteristics of glass and ceramics.

Depending on the composition of glass and ceramics, glass-ceramic has applications in many fields such as architecture, military industry, and biological science.

It does not burst when the temperature changes dramatically. It is suitable for environments such as induction cooker panels.

Glass-ceramic is not fragile. Hard.

Glass-ceramic has excellent heat resistance, high infrared transmission performance, can be available in a variety of shapes, can be used for a variety of optical purposes, and effectively blocks ultraviolet rays. The products are mainly used in: stoves, boiler panels, wave soldering, fireplaces, oven supporting equipment, electric heater panels, high-energy spotlights and floor lamp protection panels, and others

Such as infrared drying equipment, ultraviolet protection equipment, barbecue trays, laboratory and high-temperature welding masks, safety glass, etc.

Glass-ceramic has good thermal stability, (thermal shock): t 700; Safe temperature resistance: 800 °C; Maximum temperature resistance:

1000 , glass-ceramic has a high temperature difference performance value (the maximum temperature difference between the center and edge of the glass sheet) and will not break due to thermal stress at δma x 700! It is also highly resistant to thermal shock (the glass sheet withstands maximum temperature changes) and does not break due to thermal stress at ΔMA x 700.

Let me talk about its characteristics, its scientific name is glass crystal. It is brighter than ceramics and tougher than glass.

1. It has more stable chemical properties: anti-hydration, anti-hydration ability, anti-cation exchange ability; 2. It has higher mechanical strength; 3. It has better electrical properties: the lowest dielectric loss rate; 4. It has good thermal properties

The coefficient of thermal expansion is low, the thermal vibration stability is good, and the temperature point of high temperature softening is high.