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The application of foam ceramics began in 1870s, when it was used only as uranium purification material and bacterial filtration material. With the expansion of the range of ceramic foam, its application field is gradually expanding, and it has gradually expanded from the fields of filtration and heat to heat insulation, sound absorption, electronic, photoelectric, sensing, environmental biological and chemical fields.

1.1 microporous membrane ceramic separation membrane has been recognized by many people, such as acid and alkali resistance, corrosion resistance, high temperature resistance, aging resistance and long service life, and has been developed and applied in many fields, such as food industry, bio chemical industry, energy engineering, environmental engineering, electronic technology and so on. With the development of materials science, the preparation and application of nanoporous inorganic membranes have become a hot topic.

1.2 many research institutes of biomaterials are devoted to the research of porous hydroxyapatite bioceramic materials. Porous hydroxyapatite bioceramics are prepared by adding pore forming agents and making foam ceramics. Their interconnected pores are beneficial to microcirculation of tissue liquid and promote the infiltration and growth of cells. The foam ceramic hydroxyapatite artificial bone and artificial eye have been used in clinical trials.

1.3 foam ceramic foam ceramics in food and health industry can be used in the concentration, separation and purification of enzymes, viruses, vaccines, nucleic acids, proteins and other physiological active substances in the pharmaceutical industry because of their high temperature resistance, corrosion resistance and good chemical and chemical properties. In the food and beverage industry, it is especially suitable for the filtration of high quality beverage and low alcohol, and it is expected to play a great role in the production of beer.

1.4 with the development of modern industry, there are more and more harmful gases and waste water discharged from all walks of life in the production of modern industry. If it is not handled properly, it will seriously affect the living environment of human being, so environmental protection has become the theme of the times. The application of foam ceramics in automotive catalytic converters has been a long time. The foam ceramic catalyst for deodorization can catalyze the combustion of organic solvents and odorous gases in the waste water and achieve the purpose of deodorization and purification. High temperature and dusty ceramic foam with high thermal shock resistance can effectively remove high temperature dusty gas. In the process of municipal sewage treatment, ceramic foam material has also become the material used for aeration treatment.

1.5 insulation ceramic foam has the characteristics of low thermal conductivity and excellent thermal shock resistance. It is an ideal heat resistant material. The typical heat-resistant material made of foam ceramics is a heat-resistant brick with Zr02, SiC, magnesium salt and calcium salt. It is used as the best insulation material in the world, which is the best insulation material in the world. It is used in the insulation of the outer shell of the space shuttle and the forced perspiration of the missile head.