Microwave sintering is different from the traditional heating and sintering method of transferring heat through conduction, radiation, and convection mechanisms. Instead, the special band of the microwave device is coupled with the basic structure of the material to generate heat, so that the whole material is heated to the sintering temperature to achieve densification.
Compared with traditional sintering technology, microwave sintering has many outstanding advantages:
1. Microwave sintering can convert the energy of electromagnetic waves into the energy of material molecules very quickly, so that the material can be heated simultaneously inside and outside, so that the internal temperature gradient of the material is small, and the thermal stress inside the material is reduced to low, so it can effectively alleviate the material. Cracking and deformation during sintering.
2, microwave sintering can significantly reduce the sintering temperature, and because of the fast heating rate, the sintering cycle is greatly shortened, thereby greatly reducing energy consumption, energy saving 70% ~ 90% than conventional sintering; and can significantly reduce the gas usage of the sintering atmosphere, The waste and waste heat emissions during the sintering process are significantly reduced.
3. Under the action of microwave electromagnetic energy, the kinetic energy of the internal molecules of the material increases, the diffusion coefficient increases, the sintering activation energy decreases, so that the grains are not grown before being sintered, thereby obtaining a uniform fine grain structure; and the porosity of the material Small, the pore shape is also more rounded than the traditional sintering, so that the material has better mechanical properties.
Compared with traditional sintering technology, microwave sintering has many outstanding advantages:
1. Microwave sintering can convert the energy of electromagnetic waves into the energy of material molecules very quickly, so that the material can be heated simultaneously inside and outside, so that the internal temperature gradient of the material is small, and the thermal stress inside the material is reduced to low, so it can effectively alleviate the material. Cracking and deformation during sintering.
2, microwave sintering can significantly reduce the sintering temperature, and because of the fast heating rate, the sintering cycle is greatly shortened, thereby greatly reducing energy consumption, energy saving 70% ~ 90% than conventional sintering; and can significantly reduce the gas usage of the sintering atmosphere, The waste and waste heat emissions during the sintering process are significantly reduced.
3. Under the action of microwave electromagnetic energy, the kinetic energy of the internal molecules of the material increases, the diffusion coefficient increases, the sintering activation energy decreases, so that the grains are not grown before being sintered, thereby obtaining a uniform fine grain structure; and the porosity of the material Small, the pore shape is also more rounded than the traditional sintering, so that the material has better mechanical properties.
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