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《Shandong Ceramics》 2008-06
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Effect of Additives on Aluminium Titanate-Mullite Multiaperture Heat-Insulation Material

LIU xin,GU xing-yong,LI jia-ke(School of Material Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333001)  
A multiaperture heat insulation material was prepared through using aluminium titanate mullite(AMT) as main material,bauxite,magnesia-alumina spinel and corundum as additives and polystyrene foam-sphere as fore-forming agent.Uniformly aperture distribution may be obtained in the material and mean aperture size is 3 mm.Effect of the type and the amount of additive on performances of multiaperture heat-insulation material was investigated.The results show that the coefficient of heat conduction of multiaperture heat-insulation material may decrease 21% and compressive strength increase 60% than that of aluminium titanate mullite respectively with content increase of three additives.At the same time,reburning shrinkage of material increases with the addition of bauxite or corundum,and decreases with the addition of magnesia-alumina spinel.
【CateGory Index】: TQ174.1
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