The process of mullitization of andalusite is reviewed to show that this phase transformation is based on the mechanisms of a pseudomorphism that fixes the grain shape and the chemistry of solid-phase processes. Mullite is oriented in correspondence with the generating crystal of andalusite along the C axis. A single crystal of andalusite transforms into a compound consisting of a mullite single crystal with capillary pores filled with a glass phase saturated with amorphous silica. The capillaries form a network of well-connected tubular pores with a micron cross section, and they are positioned along the C axis common for the newly formed mullite and the original andalusite. About 80% of the glass phase remains in pores of capillaries of the formed mullite. The results of the study were tested in reactions between andalusites of various grain compositions and powder alumina and are now used for fabricating unshaped refractory mixtures with an ultralow content of cement and cement-free mixtures with finely milled andalusite and alumina.
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Product Description
Andalusite andalusite belongs to the rhombic crystal system.The crystal extends along the C axis in a rhombic column. Andalusite is anhydrous silicate and belongs to the lanite family. It is a kind of high quality refractory material, with excellent chemical stability, slag resistance, high temperature creep resistance, thermal shock resistance. When andalusite is heated to &#;,it turns into mullite, is a senior refractory, which usage is the same as kyanite.
Andalusite Powder is a high-quality, fine-grained, natural mineral that is prized for its unique physical and chemical properties. This powder offers a range of benefits that make it an ideal choice for a variety of industrial and commercial applications.
One of the key advantages of Andalusite Powder is its thermal stability, which allows it to withstand high temperatures without undergoing significant physical or chemical changes. This makes it an excellent material for use in high-temperature applications, such as furnace linings, kiln furniture, and refractory materials.
In addition to its thermal stability, Andalusite Powder is also highly resistant to chemical attack, making it ideal for use in corrosive environments. This makes it an excellent choice for use in the production of ceramic coatings, catalysts, and refractory materials.
Another advantage of Andalusite Powder is its high thermal conductivity, which allows it to efficiently transfer heat from one location to another. This makes it an ideal material for use in heat exchangers and other high-temperature applications.
Finally, Andalusite Powder is also known for its high-purity levels, making it a reliable and consistent material for use in a wide range of industrial and commercial applications. This, combined with its high-quality and consistent particle size, makes it an excellent choice for use in a wide range of products and processes.
In conclusion, Andalusite Powder is a versatile and high-quality material that is well-suited for a range of industrial and commercial applications. Its thermal stability, chemical resistance, high thermal conductivity, and high-purity levels make it an excellent choice for use in a variety of high-temperature and corrosive environments.
Andalusite is one of the high quality refractories known for its physical and chemical properties. It is used as high-grade refractory material in smelting industry and raw material in technical ceramic industry. Can also smelt high strength light silicon aluminum alloy, the production of metal fiber and supersonic aircraft and spacecraft oriented use.
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Andalusite calcined into profiles, can be used for hot stove, hot air tower, reheating and other key parts. It can also be used for all kinds of auxiliary pouring and operation equipment, and can also make kiln facilities, high temperature aluminum silicate insulation, sand mold fabric. Using refractory fiber made of andalusite as lining can save energy by 30 ~ 50% compared with refractory soil or light brick lining. Using andalusite firebrick can not only reduce fuel consumption and increase stability, but also save more than 40% of the consumption of general refractory materials.
Q: What is the MOQ of the product?
A: The MOQ is 1*20ft container. But we accept trial orders,too.
Q: Do you have any test report about the product?
A: Yes we have test report from a third party. And we could provide MSDS.
25kgs/bag,1ton/ton bag, or as required. Port of delivery are Tianjin,Qingdao,Dalian port.
Storage in ventilated low temperature dry warehouse.
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